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TP-PAFunctional Plasminogen
See Plasminogen, Activity

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T. gondii Antibody IgM
See Toxoplasma IgM Antibody

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T. gondii IgG/IgM
See Toxoplasma Antibody Profile

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T. pallidum IgM
See Treponema pallidum IgM Antibody

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T. pallidum Antibody, IgM
See Treponema pallidum IgM Antibody

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T. pallidum Passive Agglutination
See Treponemal Confirmation Assay by TP-PA

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T. whipplei PCR
See Tropheryma whipplei, PCR, Cerebrospinal Fluid

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T3, Free, Serum		Test Code: FT3
CPT:	84481
Alternate Name:	Free T3; Free Triiodothyronine
Methodology:	Direct Chemiluminescence
Testing Schedule:	Routine; STAT testing available 0600-2100
Report Available:	1 day
Specimen Requirements:
Minimum Volume:	1 mL serum
Container:	Gold top (serum separator) tube
Special Instructions and/or Comments:
•Testing must be performed within 8 hours of collection. •If delay in transport, centrifuge transfer to plastic aliquot tube and refrigerate tube in the upright position. Specimen should remain capped until time of testing.
Reference Range:
2.30-4.20 pg/mL
Clinical Utility:
Used in the evaluation of thyroid function and thyroid disorders.

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T3 Total, Serum		Test Code: T3T
CPT:	84480
Alternate Name:	Total T3; Total Triiodothyronine
Methodology:	Direct Chemiluminescence
Testing Schedule:	Routine, STAT testing available 0600-2100
Report Available:	1 day
Specimen Requirements:
Minimum Volume:	1 mL serum
Container:	Gold top (serum separator) tube
Special Instructions and/or Comments:
•Testing must be performed within 8 hours of collection. •If delay in transport, centrifuge, transfer to plastic aliquot tube, and refrigerate tube in the upright position. Specimen should remain capped until time of testing.
Reference Range:
0.60-1.81 ng/mL
Clinical Utility:
Used in the evaluation of thyroid function and thyroid disorder.

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T3, Uptake, Serum		Test Code: T3U
CPT:	84479
Alternate Name:	TBI; Thyroid Binding Index
Methodology:	Direct Chemiluminescence
Testing Schedule:	Routine, STAT testing available 0600-2100
Report Available:	1 day
Specimen Requirements:
Minimum Volume:	1 mL serum
Container:	Gold top (serum separator) tube
Special Instructions and/or Comments:
•Testing must be performed within 8 hours of collection. •If delay in transport, centrifuge, transfer to plastic aliquot tube, and refrigerate tube in the upright position.Specimen should remain capped until time of testing.
Reference Range:
22.4 – 36.7 %
Clinical Utility:
Used in the evaluation of thyroid function and thyroid disorders.

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T4 Binding Capacity
See Thyroxine Binding Globulin

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T4, Free, Equilibrium Dialysis		Test Code: FRT4D
CPT:	84439
Alternate Name:	• Free T4 by E.D. • Free T4 by Equilibrium Dialysis • Thyroxine Free direct dialysis
Methodology:	Immunochemiluminometric Assay (ICMA), Dialysis/Radioimmunoassay
Testing Schedule:	Routine, 2 times per week
Report Available:	7-10 days
Specimen Requirements:
Minimum Volume:	1 mL serum
Container:	Red top tube, (NO SST!) OR Gold Top (serum separator)
Special Instructions and/or Comments:
• Centrifuge, transfer to plastic vial and freeze • Once frozen, transport specimen submerged in dry ice
Reference Range:
Result Name Reference Range Units Result Code Thyroxine (T4) < 3 days: Call Client Services < 2 months: 8-20 < 2 years: 6-14 < 6 years: 4.5-11 < 19 years: 4.5-10 > 19 years: 4.5-12 ug/dL 30620 Thyroxine (T4) Free 0.8 - 2.6 ng/dL 30623
Clinical Utility:
T4 and T3 circulate in the blood as equilibrium mixtures of free and protein-bound hormones. Changes in concentration or affinity of TBG or other transport proteins profoundly affect the total hormone concentration in serum. The free hormone is independent of these binding protein variations and remains almost constant. Direct dialysis is an equilibrium dialysis method in which undiluted serum specimens are dialyzed for 16 to 18 hours at 37C in a reusable dialysis chamber. The dialysis buffer provides for minimal changes in the serum matrix. The dialysate is then analyzed directly using a sensitive immunoassay.

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T4, Free, Serum		Test Code: FT4
CPT:	84439
Alternate Name:	Free T4; Free Thyroxine; Unbound T4
Methodology:	Direct Chemiluminescence
Testing Schedule:	Routine, STAT testing available 0600-2100
Report Available:	1 day
Specimen Requirements:
Minimum Volume:	1 mL serum
Container:	Gold top (serum separator) tube
Special Instructions and/or Comments:
•Testing must be performed within 8 hours of collection. •If delay in transport, centrifuge transfer to plastic aliquot tube and refrigerate tube in the upright position. Specimen should remain capped until time of testing.
Reference Range:
0.89-1.76 ng/dL
Clinical Utility:
Used in the evaluation of thyroid function and thyroid disorders.

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T4, Total, Serum		Test Code: T4
CPT:	84436
Alternate Name:	Thyroxine; Total T4
Methodology:	Direct Chemiluminescence
Testing Schedule:	Routine, STAT testing available 0600-2100
Report Available:	1 day
Specimen Requirements:
Minimum Volume:	1 mL serum
Container:	Gold top (serum separator) tube
Special Instructions and/or Comments:
•Testing must be performed within 8 hours of collection. •If delay in transport, centrifuge, transfer to plastic aliquot tube, and refrigerate tube in the upright position. Specimen should remain capped until time of testing.
Reference Range:
4.5-10.9 mg/dL
Clinical Utility:
Used in the evaluation of thyroid function and thyroid disorders.

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T7 Profile		Test Code: TH7
Includes:	•T3, Uptake •T4, Total •T7 (Calculated)
CPT:	84479, 84436
Methodology:	Direct Chemiluminescence
Testing Schedule:	Routine, STAT testing available 0600-2100
Report Available:	1 day
Specimen Requirements:
Minimum Volume:	1 mL serum
Container:	Gold top (serum separator) tube
Special Instructions and/or Comments:
•Testing must be performed within 8 hours of collection. •If delay in transport, centrifuge, transfer to plastic aliquot tube, and refrigerate tube in the upright position. Specimen should remain capped until time of testing.
Reference Range:
T7: 1.12-4.38 T4, Total: 4.5-10.9 µg/dL T3, Uptake: 22.4-36.7%
Clinical Utility:
The T7 Profile is a calculated indirect assessment of Free Thyroxine Status. Measurement of Free Thyroxine (FT4) provides a direct assessment. Used in the evaluation of thyroid function and thyroid disorders.

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Tacrolimus
See FK506Taenia sp
See Parasite Identification

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Tapeworm Identification
See Parasite Identification

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Tambocor™
See Flecainide

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Tay Sachs Enzyme Screen		Test Code: TAYS
CPT:	83080
Methodology:	Fluorometric Enzymatic Assay
Testing Schedule:	Routine, Monday-Friday only
Report Available:	10-14 days
Specimen Requirements:
Minimum Volume:	10 mL whole blood
Container:	Yellow top (ACD Solution A) tubes
Special Instructions and/or Comments:
•Collect Monday-Friday ONLY before 1400, no holidays.Specimens must arrive in the laboratory no later than 1600. •Store as whole blood in original tube at room temperature. •DO NOT centrifuge, aliquot, refrigerate or freeze. •Must provide patient’s ethnic background, family history and diagnosis.
Reference Range:
See report.
Clinical Utility:
Couples who are pregnant or planning a pregnancy may opt to be tested to find out if they are carriers and at risk of having a baby with Tay-Sachs disease.

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TB Complex DNA PCR		Test Code: PCRTB
CPT:	87556
Alternate Name:	• Myobacterium Complex DNA PCR • TB PCR
Methodology:	Real Time Polymerase Chain Reaction (PCR)
Testing Schedule:	Routine, Mon-Fri ONLY
Report Available:	7-10 Days
Specimen Requirements:
Minimum Volume:	1 mL Cerebrospinal Fluid
Container:	Sterile conical tube
Special Instructions and/or Comments:
Refrigerate
Reference Range:
Negative for Mycobacterium complex DNA
Clinical Utility:
Useful for rapid detection of MYcobacterium complex and the diagnosis of tuberculosis if used in conjunction with mycobacterial culture.

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TB Culture
See Culture, Mycobacteria

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TB PCR
See Mycobacterium tuberculosis, PCR,

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TBG
See Thyroxine Binding Globulin

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TBI
See T3, Uptake, Serum

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TCT
See Thrombin Time, Plasma

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Tegretol®
See Carbamazepine, Total

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Tegretol®, Free
See Carbamazepine, Free

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Teichoic Acid Antibody		Test Code: TEIC
CPT:	86329
Methodology:	Immunodiffusion
Testing Schedule:	Routine, 3 times per week
Report Available:	5-7 days
Specimen Requirements:
Minimum Volume:	1 mL serum
Container:	Gold top (serum separator) tube
Special Instructions and/or Comments:
Refrigerate
Reference Range:
<1:1 = No antibody detected
Clinical Utility:
Antibody titers of 14 and greater against Staphylococcal beta-ribitol teichoic acid are associated with deep-seated Staphylococcus aureus infections. Rising and falling titers are of prognostic value in the evaluation of treatment and detection of recurrence.

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Temazepam		Test Code: TEMAZ
CPT:	80154
Alternate Name:	Restoril
Methodology:	LC/MS/MS
Testing Schedule:	Once per week
Report Available:	3-5 business days
Specimen Requirements:
Minimum Volume:	2 mL whole blood, serum or plasma Minimum volume: 1 mL
Container:	Gray top, red top or lavendar top Special Instructions
Special Instructions and/or Comments:
Refrigerate
Reference Range:
Temazepam Peak concentrations:.......200-1100 ng/mL within 1.5 hours post dose Oxazepam Therapeutic Range:........200-1400 ng/mL
Clinical Utility:
Monitoring therapy or assessing toxicity

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Template Bleeding Time
See Bleeding Time, Template

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Testosterone, Free and Total		Test Code: TTRPF
Includes:	•Testosterone, Total •Testosterone, Free, calculated •Testosterone, % Free •Testosterone, Bioavailable, calculated •Testosterone, % Bioavailable •Sex Hormone Binding Globulin
CPT:	84403, 84270
Methodology:	Direct Chemiluminescence
Testing Schedule:	Routine, 2 times per week
Report Available:	5-7 days
Specimen Requirements:
Minimum Volume:	1 mL serum
Container:	Gold top (serum separator) tube
Special Instructions and/or Comments:
Refrigerate
Reference Range:
See report.
Clinical Utility:
Testosterone is important in the development of secondary sex characteristics, maturation, and normal function. Because the testosterone bound to albumin (weakly bound form) is as readily available to the tissues as free testosterone, the bioavailable testosterone (the biologically active form of testosterone) includes both the free and albumin-bound fractions. It does not include the testosterone that is bound to SHBG (sex hormone binding globulin) which is not biologically active.

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Testosterone, Total, Serum		Test Code: TTTR
CPT:	84403
Methodology:	Direct Chemiluminescence
Testing Schedule:	Routine, STAT testing available 0600-2100
Report Available:	2-4 days
Specimen Requirements:
Minimum Volume:	1 mL serum
Container:	Gold top (serum separator) tube
Special Instructions and/or Comments:
•Testing must be performed within 8 hours of collection. •If delay in transport, centrifuge transfer to plastic aliquot tube and refrigerate tube in the upright position.Specimen should remain capped until time of testing.
Reference Range:
Females •<10 years 2-20 ng/dL •<12 years 5-25 ng/dL •<15 years 10-40 ng/dL •<18 years 5-40 ng/dL •>18 years*see note Males •<10 years 3-30 ng/dL •<12 years 5-50 ng/dL •<15 years 10-572 ng/dL •<18 years 220-800 ng/dL •>18 years 241-827 ng/dL *Females: >18 years •Ovulating: 63-120 ng/dL •Oral Contraceptive: 54-71 ng/dL •Postmenopausal: 49-113 ng/dL
Clinical Utility:
Useful for diagnosis of hypogonadism in males and hirsutism and virilization in females. Total testosterone includes free testosterone, weakly bound testosterone (bound to albumin), and tightly bound testosterone (bound to SHBG or sex hormone binding globulin).

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Tetanus Antibody
See Tetanus Antibody, Vaccine Response

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Tetanus Antibody, Vaccine Response		Test Code: TEAB
CPT:	86774
Alternate Name:	Tetanus Antibody; Tetanus Toxoid IgG Antibody
Methodology:	Enzyme Immunoassay (EIA)
Testing Schedule:	Routine, 3 times per week
Report Available:	5-7 days
Specimen Requirements:
Minimum Volume:	1 mL serum
Container:	Gold top (serum separator) tube
Special Instructions and/or Comments:
Refrigerate •Please note if specimens are pre- or post- vaccination.
Reference Range:
Healthy immunized • >0.15 IU/mL
Clinical Utility:
Useful for Assessment of an antibody response to tetanus

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Tetanus Toxoid IgG Antibody
See Tetanus Antibody, Vaccine Response

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Tetracycline Labeling
See Histopathology, Bone Biopsy, Osteomalacia

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TG
See Thyroglobulin Profile TG Autoantibody
See Thyroglobulin Autoantibody
See Thyroglobulin Profile
See Thyroid Autoantibody ProfileTGs
See Triglycerides, Serum

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THC
See Cannabinoids, Qualitative, Urine

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THC in Blood
See Cannabinoids, Blood

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Theophylline, Serum		Test Code: THEO
CPT:	80198
Alternate Name:	Aminophylline; Somophyllin®; Theo-Dur®
Methodology:	Endpoint
Testing Schedule:	Routine, STAT testing available
Report Available:	1 day
Specimen Requirements:
Minimum Volume:	1 mL serum
Container:	Gold top (serum separator) tube
Collection:	•Peak 2 hours post dose for rapid dissolution preparation; 4-6 hours post sustained release preparations. • Trough immediately prior to next dose.
Special Instructions and/or Comments:
Intake of caffeine should be avoided (caffeine is metabolized to theophylline).
Reference Range:
Therapeutic: 10.0-20.0 µg/mL
Critical Values:
>25.0 µg/mL
Clinical Utility:
Used to measure the amount of theophylline in the blood and to determine if the drug concentration is within the therapeutic range.

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Thiamine
See Vitamin B1

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Thin Needle Biopsy
See Cytopathology, Needle Aspiration

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ThinPrep® Test (Smear)
See Cytolopathology, ThinPrep® Pap Test and ThinPrep® plus Imager

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Thiocyanate		Test Code: THIO
CPT:	84430
Alternate Name:	• Nipride®; • Nitroprusside
Methodology:	Colorimetry
Testing Schedule:	Routine, Mon. - Fri.
Report Available:	3-5 days
Specimen Requirements:
Minimum Volume:	4 mL serum
Container:	Red top tube, no serum separator
Special Instructions and/or Comments:
Refrigerate
Reference Range:
Normal concentration:................. 4-20 ug/mL Toxic concentration:.......................> 60 ug/mL
Clinical Utility:
Useful for monitoring toxicity in patients on nitroprusside therapy.

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Thioridazine		Test Code: THIOR
CPT:	82542
Alternate Name:	Mellaril®
Methodology:	Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)
Testing Schedule:	Routine, 3 times per week
Report Available:	5-7 days
Specimen Requirements:
Minimum Volume:	2 mL serum
Container:	Red top tube, no serum separator
Special Instructions and/or Comments:
Refrigerate
Reference Range:
NOTE This test is not intended for therapeutic drug monitoring. Blood concentrations in appropriately treated patients are widely variable. Results must be interpreted in light of patient’s clinical state. Lower limit of detection is 20 ng/mL. Some adequately treated patients will have results lower than this limit. Thioridazine: • Reporting Limit: 20ng/mL • Reference Range: 250-1250 ng/mL • Critical Value: 1800 ng/mL Mesoridazine • Reporting Limit: 20 ng/mL • Reference Range: 150-1000 ng/mL • Critical Value: 1500 ng/mL
Clinical Utility:
Useful for, assessing toxicity in overdose situations.

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Thoracentesis Fluid Culture
See Culture, Fluid, Aerobic

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Thoracentesis Fluid Cytology
See Cytopathology, Fluid

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Thoracentesis Fluid pH
See pH, Body Fluid

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Thoracentisis Fluid Profile		Test Code: TFA
Includes:	•Cell count •Glucose, Fluid •Lactate Dehydrogenase, Fluid •Protein, Total, Fluid
CPT:	89050 , 89051, 82945, 83615, 84157, 88107
Alternate Name:	Fluid Analysis, Thoracentisis Fluid
Methodology:	See individual test listings.
Testing Schedule:	Routine, STAT testing available
Report Available:	1 day
Specimen Requirements:
Minimum Volume:	2 mL thoracentisis fluid in each tube
Container:	Red top tube, no serum separator AND lavender top (EDTA) tube
Reference Range:
See individual test listing
Clinical Utility:
Used to evaluate effusion and differentiate exudate from transudate.

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Thorazine		Test Code: THOZ
CPT:	84022
Alternate Name:	Chlorpromazine
Methodology:	High Performance Liquid Chromatography (HPLC)
Testing Schedule:	Routine, 2 times per week
Report Available:	5-7 days
Specimen Requirements:
Minimum Volume:	2 mL serum
Container:	Red top tube, no serum separator
Special Instructions and/or Comments:
Refrigerate
Reference Range:
• Therapeutic: 50-500 ng/mL.
Clinical Utility:
Useful to identify toxicity

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Throat Culture
See Culture, Throat, Group A Beta-Hemolytic Streptococci Only

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Thrombin Anti-Thrombin Complex		Test Code: THANC
CPT:	83520
Methodology:	Enzyme-Linked Immunosorbent Assay (ELISA)
Testing Schedule:	2 times per week
Report Available:	3-5 days
Specimen Requirements:
Minimum Volume:	2 mL plasma split equally into 2 plastic aliquot tubes and FROZEN immediately.
Container:	2 Blue top (sodium citrate) tubes
Collection:	See special handling instructions for “Coagulation Studies”, listed under Specimen Collection, Preparation, and Handling Section
Special Instructions and/or Comments:
•Testing is contraindicated for patients on Heparin or Coumadin therapy. •Immediately centrifuge at 1500-1700 X G for 10 minutes.Avoiding the buffy coat, carefully remove the plasma from the cells using a plastic aliquot pipette.Aliquot the plasma into the required number of plastic aliquot tubes and label with “citrated plasma” labels. •Freeze the aliquoted specimens at –40 to –60°C. Once frozen, transport the specimens submerged in dry ice. Causes for rejection •Extended transport time to laboratory •Clotted specimens •Hemolyzed specimens •Blue top sodium citrate tubes insufficiently filled •Aliquots not received frozen on dry ice •Frozen aliquots not clearly identified as “citrated plasma”
Reference Range:
0.0-5.0 mg/mL
Clinical Utility:
Thrombin-Antithrombin (TAT) complex is a parameter of coagulation and fibrinolysis .Elevated concentrations have been associated with vascular complications associated with diabetes.

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Thrombin Clotting Time
See Thrombin Time, Plasma

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Thrombin-Fibrindex
See Thrombin Time, Plasma

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Thrombin Time, Plasma		Test Code: TT
CPT:	85670
Alternate Name:	• Thrombin Clotting Time • Thrombin-Fibrindex • TT
Methodology:	Mechanical Clot Detection
Testing Schedule:	Routine
Report Available:	5-7 days
Specimen Requirements:
Minimum Volume:	1 mL citrated plasma
Container:	Full blue top (sodium citrate) tube
Collection:	See special handling instructions for “Coagulation Studies”, listed under Specimen Collection, Preparation, and Handling Section
Special Instructions and/or Comments:
•Transport to the laboratory immediately. •If testing cannot be performed within 4 hours of collection, centrifuge at 3000 rpm for 15 minutes, transfer plasma to plastic aliquot tube, and freeze. Once frozen, transport specimen submerged in dry ice.
Reference Range:
0-21.0 seconds* *Range varies with reagent lot.
Clinical Utility:
Used to evaluate hypofibrinogenemia, dysfibrinogenemia, DIC, and fibrinolysis.

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Thrombocyte Count
See Platelet Count, Whole Blood

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Thrombotic Risk Profile		Test Code: TRPR
Includes:	•Antithrombin III Activity •APC Resistance •Beta-2-Glycoprotein-1 Autoantibody Profile (G/A/M) •Cardiolipin Autoantibody Profile (G/A/M) •dRVVT Screen* •Fibrinogen •Plasminogen Activity •Protein C •Protein S •PTT (Lupus Sensitive)* •Thrombin Time •Reflexed when appropriate: .....................Hexagonal Phase Phospholipid .....................PTT Mixing Study .....................Reptilase Time *When the Thrombin Time (TT) and Prothrombin Time (PT) are normal, at minimum, the PTT & dRVVT Screen are performed.
CPT:	85300, 85307, 86146(x3), 86147 (x3), 85613, 85384, 85420, 85303, 85306, 85730, 85670, Reflexed when appropriate 85597, 85732,85635
Methodology:	See individual test listings.
Testing Schedule:	Routine, 1 time per week
Report Available:	5-7 days
Specimen Requirements:
Minimum Volume:	4 mL prepared “platelet poor plasma” split equally into 4 plastic aliquot tubes and FROZEN immediately AND 1 mL serum Container 4 Blue top (sodium citrate) tubes AND 1 Gold top (serum separator) tube
Collection:	See special handling instructions for “Coagulation Studies”, listed under Specimen Collection, Preparation, and Handling Section
Special Instructions and/or Comments:
•Testing is contraindicated for patients on Heparin or Coumadin therapy. •Preparation and submission of “platelet poor plasma” is critical for accurate test performance and interpretation.See collection note above. Causes for rejection •Extended transport time to laboratory •Clotted specimens •Hemolyzed specimens •Blue top sodium citrate tubes insufficiently filled •Aliquots not received frozen on dry ice •Frozen aliquots not clearly identified as “platelet poor plasma”
Reference Range:
See individual test listings.
Clinical Utility:
See individual test listings.

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Thyroglobulin Autoantibody		Test Code: ATGAB
CPT:	86800
Alternate Name:	Anti-TG Antibody; Anti- Thyroglobulin Autoantibody; TG Autoantibody; Thyroid Antibodies
Methodology:	Chemiluminescent Immunoassay
Testing Schedule:	Routine, 2 times per week
Report Available:	5-7 days
Specimen Requirements:
Minimum Volume:	1 mL serum
Container:	Gold top (serum separator) tube
Reference Range:
<40 IU/mL
Clinical Utility:
Useful in the differential diagnosis of congenital hypothyroidism and the management of nonmedullary differentiated thyroid carcinoma. Thyroglobulin and/or thyroid peroxidase autoantibodies occur in sera of most autoimmune thyroid disease patients. Individuals with thyroid peroxidase autoantibodies go on to develop hypothyroidism at a rate of about 3% per year.

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Thyroglobulin Profile		Test Code: THGLB
Includes:	•Thyroglobulin, Quantitative •Thyroglobulin Autoantibody
CPT:	84432, 86800
Alternate Name:	Anti-TG Antibody; Anti- Thyroglobulin Autoantibody; TG; TG Autoantibody; Quantitative TG
Methodology:	Immunoenzymatic Assay
Testing Schedule:	Routine, 2 times per week
Report Available:	5-7 days
Specimen Requirements:
Minimum Volume:	1 mL serum
Container:	Gold top (serum separator) tube
Special Instructions and/or Comments:
Centrifuge, transfer to plastic aliquot tube and refrigerate.
Reference Range:
Thyroglobulin, Quantitative •Normal Thyroid: <33 ng/mL •Athyroidic Patient: <5 ng/mL •Thyroglobulin Autoantibody Screen: <2.3 IU/mL
Clinical Utility:
Thyroglobulin testing is often used as a tumor marker to determine the effectiveness of thyroid cancer treatment.

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Thyroid Antibodies
See Thyroid Peroxidase Autoantibody
See Thyroglobulin Autoantibody
See Thyroid Autoantibody Profile

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Thyroid Aspiration Cytology
See Cytopathology, Needle Aspiration

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Thyroid Autoantibodies
See Thyroid Autoantibody Profile

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Thyroid Autoantibody Profile		Test Code: ATA
Includes:	•Thyroglobulin Autoantibody •Thyroid Peroxidase Autoantibody
CPT:	86800, 86376
Alternate Name:	Anti-TG Antibody; Anti- Thyroglobulin Autoantibody; Anti-Thyroid Antibodies; Anti-Thyroid Peroxidase Autoantibody; Anti-TPO Antibody; TG Autoantibody; Thyroid Antibodies; Thryoid Autoantibodies
Methodology:	Chemiluminescent Immunoassay
Testing Schedule:	Routine, 2 times per week
Report Available:	5-7 days
Specimen Requirements:
Minimum Volume:	1 mL serum
Container:	Gold top (serum separator) tube
Reference Range:
See individual test listings.
Clinical Utility:
Thyroglobulin and/or thyroid peroxidase autoantibodies occur in sera of most autoimmune thyroid disease patients. Individuals with thyroid peroxidase autoantibodies go on to develop hypothyroidism at a rate of about 3% per year.

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Thyroid Binding Index
See T3, Uptake, Serum

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Thyroid Peroxidase Antibody
See Thyroid Peroxidase Autoantibody

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Thyroid Peroxidase Autoantibody		Test Code: ATPO
Includes:	Thyroid peroxidase autoantibody
CPT:	86376
Alternate Name:	Anti-TPO Antibody; Anti- Thyroid Peroxidase Antibody; Thyroid Antibodies; Thyroid Peroxidase Antibody; TPO ReplacesMicrosomal Autoantibody
Methodology:	Chemiluminescent Immunoassay
Testing Schedule:	Routine, 2 times per week
Report Available:	5-7 days
Specimen Requirements:
Minimum Volume:	1 mL serum
Container:	Gold top (serum separator) tube
Reference Range:
<35 IU/mL
Clinical Utility:
Thyroglobulin and/or thyroid peroxidase autoantibodies occur in sera of most autoimmune thyroid disease patients. Individuals with thyroid peroxidase autoantibodies go on to develop hypothyroidism at a rate of about 3% per year.

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Thyroid Stimulating Hormone, Serum		Test Code: TSH
CPT:	84443
Alternate Name:	Thyrotropin Hormone; Thyrotropin Stimulating Hormone; TSH
Methodology:	Direct Chemiluminescence
Testing Schedule:	Routine, STAT testing available 0600-2100
Report Available:	1 day
Specimen Requirements:
Minimum Volume:	1 mL serum
Container:	Gold top (serum separator) tube
Special Instructions and/or Comments:
•Testing must be performed within 8 hours of collection. •If delay in transport, centrifuge, transfer to plastic aliquot tube, and refrigerate tube in the upright position. Specimen should remain capped until time of testing.
Reference Range:
0.35-4.00 mIU/mL
Clinical Utility:
Used in the evaluation of thyroid disorders and thyroid replacement therapy; may also aid in evaluation of pituitary disorders.

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Thyroid Stimulating Immunoglobulin		Test Code: TSIG
CPT:	84445
Alternate Name:	TSI
Methodology:	Recombinant BioAssay
Testing Schedule:	Routine, daily
Report Available:	5-7 days
Specimen Requirements:
Minimum Volume:	2 mL frozen serum
Container:	Gold top (serum separator) tube
Special Instructions and/or Comments:
Centrifuge, transfer to plastic aliquot tube and freeze.Once frozen, transport specimen submerged in dry ice.
Reference Range:
•All Ages <= 1.3 TSI Index
Clinical Utility:
Useful for, Second-order testing for autoimmune thyroid disease, including •Differential diagnosis of etiology of thyrotoxicosis in patients with ambiguous clinical signs and/or contraindicated (e.g., pregnant or breast-feeding) or indeterminate thyroid radioisotope scans •Diagnosis of clinically suspected Graves’ disease (e.g., extrathyroidal manifestations of Graves’ disease endocrine exophthalmos, pretibial myxedema, thyroid acropachy) but normal thyroid function tests •Determining the risk of neonatal thyrotoxicosis in a fetus of a pregnant female with active or past Graves’ disease •Differential diagnosis of gestational thyrotoxicosis versus first trimester manifestation or recurrence of Graves’ disease •Assessing the risk of Graves’ disease relapse after antithyroid drug treatment

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Thyrotropin Hormone
See Thyroid Stimulating Hormone,Serum

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Thyrotropin Stimulating Hormone
See Thyroid Stimulating Hormone, Serum

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Thyroxine
See T4, Total, Serum

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Thyroxine Binding Globulin		Test Code: TBG
CPT:	84442
Alternate Name:	T4 Binding Capacity; TBG
Methodology:	Chemiluminescent Assay
Testing Schedule:	Routine, daily
Report Available:	2-4 days
Specimen Requirements:
Minimum Volume:	1 mL serumContainerGold top (serum separator) tube
Special Instructions and/or Comments:
Centrifuge, transfer to plastic aliquot tube and freeze.Once frozen, transport specimen submerged in dry ice.
Reference Range:
•Males12-26 µg/mL •Females11-27 µg/mL
Clinical Utility:
Determination of TBG levels is particularly useful forcases in which total thyroid hormone levels do not correlate with the thyrometabolic status, most commonly with pregnancy or the use of contraceptive steroids

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TIBC
See Total Iron Binding Capacity Profile

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Ticks
See Arthropod Identification

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Tissue Culture, Actinomycosis
See Culture, Actinomyces, Anaerobic

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Tissue Culture Routine
See Culture, Tissue, Aerobic

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Tissue Examination
See Histopathology

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Tissue Pathology
See Histopathology

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Tissue Transglutaminase IgA Autoantibody		Test Code: TTGAB
Includes:	Tissue transglutaminase IgA antibodies
CPT:	83516
Alternate Name:	tTG Antibody; tTG IgA Autoantibody
Methodology:	Enzyme Immunoassay (EIA)
Testing Schedule:	Routine, daily
Report Available:	3-5 days
Specimen Requirements:
Minimum Volume:	1 mL serum
Container:	Gold top (serum separator) tube
Special Instructions and/or Comments:
Refrigerate
Reference Range:
•Negative:...................<4.0 U/mL •Weak positive:...........4.0-10.0 U/mL •Strong positive:..........>10.0 U/mL
Clinical Utility:
Useful for, first-order screening test for celiac disease. Identifying individuals that should have a biopsy for celiac disease. Screening test for dermatitis herpetiformis, in conjunction with EMA antibody test. Monitoring adherence to gluten-free diet in patients with dermatitis herpetiformis and celiac disease. Evaluating children with failure to thrive

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Tissue Transglutaminase IgG Autoantibody		Test Code: TTIGG
See HLA-B27
CPT:	83516
Alternate Name:	tTg IgG
Methodology:	Enzyme Immunoassay (EIA)
Testing Schedule:	Routine, daily
Report Available:	3-5 days
Specimen Requirements:
Minimum Volume:	1 mL serum
Container:	Gold top (serum separator) tube
Special Instructions and/or Comments:
• Centrifuge tube and transfer serum to plastic vial • Refrigerate
Reference Range:
<6.0 U/mL

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Tobramycin Peak		Test Code: TOBP
CPT:	80200
Methodology:	Immunoassay (IA)
Testing Schedule:	Routine, STAT testing available
Report Available:	1 day
Specimen Requirements:
Minimum Volume:	1 mL serum
Container:	Red top or SST tube
Collection:	•Peak collect 60 minutes post I.M. injection OR 30 minutes post 30 minute I.V. infusion OR immediately post 60 minute I.V. infusion. •Trough collect immediately prior to next dose.
Special Instructions and/or Comments:
•Centrifuge, transfer to plastic aliquot tube and refrigerate or freeze.Once frozen, transport specimen submerged in dry ice. •If a ß-lactam antibiotic is present, sample must be FROZEN due to potential inactivation of aminogly coside.
Reference Range:
Therapeutic •Peak................4-10 µg/mL •Trough ..........<2 µg/mL Toxic •Peak ..............>10.0 µg/mL •Trough ..........>2.0 µg/mL
Critical Values:
•Peak .............>12.0 µg/mL •Trough..........>2.0 µg/mL
Clinical Utility:
Useful for monitoring adequate drug clearance during therapy, adequacy of blood concentration and assessing toxicity.

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Tobramycin Random		Test Code: TOBR
CPT:	80200
Methodology:	Immunoassay (IA)
Testing Schedule:	Routine, STAT testing available
Report Available:	1 day
Specimen Requirements:
Minimum Volume:	1 mL serum
Container:	Red top or SST tube
Collection:	•Peak collect 60 minutes post I.M. injection OR 30 minutes post 30 minute I.V. infusion OR immediately post 60 minute I.V. infusion. •Trough collect immediately prior to next dose.
Special Instructions and/or Comments:
•Centrifuge, transfer to plastic aliquot tube and refrigerate or freeze.Once frozen, transport specimen submerged in dry ice. •If a ß-lactam antibiotic is present, sample must be FROZEN due to potential inactivation of aminogly coside.
Reference Range:
Therapeutic •Peak4-10 µg/mL •Trough <2 µg/mL Toxic •Peak >10.0 µg/mL •Trough >2.0 µg/mL
Critical Values:
•Peak >12.0 µg/mL •Trough>2.0 µg/mL
Clinical Utility:
Useful for monitoring adequate drug clearance during therapy, adequacy of blood concentration and assessing toxicity.

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Tobramycin Trough		Test Code: TOBT
CPT:	80200
Methodology:	Immunoassay (IA)
Testing Schedule:	Routine, STAT testing available
Report Available:	1 day
Specimen Requirements:
Minimum Volume:	1 mL serum
Container:	Red top or SST tube
Collection:	•Peak collect 60 minutes post I.M. injection OR 30 minutes post 30 minute I.V. infusion OR immediately post 60 minute I.V. infusion. •Trough collect immediately prior to next dose.
Special Instructions and/or Comments:
•Centrifuge, transfer to plastic aliquot tube and refrigerate or freeze.Once frozen, transport specimen submerged in dry ice. •If a ß-lactam antibiotic is present, sample must be FROZEN due to potential inactivation of aminogly coside.
Reference Range:
Therapeutic •Peak................4-10 µg/mL •Trough............<2 µg/mL Toxic •Peak ...............>10.0 µg/mL •Trough........... >2.0 µg/mL
Critical Values:
•Peak ..............>12.0 µg/mL •Trough...........>2.0µg/mL
Clinical Utility:
Useful for monitoring adequate drug clearance during therapy, adequacy of blood concentration and assessing toxicity.

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Tocainide		Test Code: TOCA
CPT:	80299
Alternate Name:	Tonocard®
Methodology:	High Performance Liquid Chromatography (HPLC)
Testing Schedule:	Routine, batched
Report Available:	5-7 days
Specimen Requirements:
Minimum Volume:	2 mL serum
Container:	Red top tube, no serum separator
Special Instructions and/or Comments:
Refrigerate
Reference Range:
Therapeutic Concentration: 4-10ug/mL
Clinical Utility:
Useful monitoring therapy and accessing toxicity.

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Tocopherol
See Vitamin E

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Tofranil®
See Imipramine

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Tonocard®
See Tocainide

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Topamax®
See Topiramate

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Topiramate		Test Code: TOPIR
CPT:	80201
Alternate Name:	Topamax®
Methodology:	Fluorescence Polarization Immunoassay (FPIA)
Testing Schedule:	Routine, Monday-Friday only
Report Available:	3-5 days
Specimen Requirements:
Minimum Volume:	1 mL serum
Container:	Red top tube, no serum separator
Special Instructions and/or Comments:
•Centrifuge, transfer serum to plastic aliquot tube & freeze •Once frozen, transport specimen submerged in dry ice.
Reference Range:
Therapeutic •Peak .............................9.0-12.0 µg/mL •Trough..........................2.0-4.0 µg/mL
Clinical Utility:
Useful for monitoring dosage compliance and to guidedose adjustment during co-therapy with phenytoin or carbamazepine.

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TORCH Agents
See TORCH IgG Antibody Profile
See TORCH IgM Antibody Profile

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TORCH Battery
See TORCH IgG Antibody Profile
See TORCH IgM Antibody Profile

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TORCH Screen
See TORCH IgG Antibody Profile
See TORCH IgM Antibody Profile

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TORCH Titer
See TORCH IgG Antibody Profile
See TORCH IgM Antibody Profile

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TORCH IgG Antibody Profile		Test Code: TORCG
Includes:	IgG Antibodies to each of the following •Toxoplasma gondii •Rubella virus •Cytomegalovirus (CMV) •Herpes Simplex Virus (HSV) types 1 and 2
CPT:	86644, 86695, 86696, 86762, 86777
Alternate Name:	TORCH Agents; TORCH Battery; TORCH Screen; TORCH Titer
Methodology:	See individual test listings.
Testing Schedule:	Routine, 2 times per week
Report Available:	5-7 days
Specimen Requirements:
Minimum Volume:	2 mL serum
Container:	Gold top (serum separator) tube NOTE Specimens submitted on newborns (up to 3 months of age) should be accompanied by a parallel specimen on the mother.
Reference Range:
See individual test listings.
Clinical Utility:
Screen for TORCH antibodies; aid in the diagnosis of congenital infection.

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TORCH IgM Antibody Profile		Test Code: TORCM
Includes:	•IgM Antibodies to each of the following •Toxoplasma gondii •Rubella virus •Cytomegalovirus (CMV) •Herpes Simplex Virus (HSV) types 1 and 2
CPT:	86645, 86694 (x2), 86762, 86778
Alternate Name:	TORCH Agents; TORCH Battery; TORCH Screen; TORCH Titer
Methodology:	See individual test listings.
Testing Schedule:	Routine, 2 times per week
Report Available:	5-7 days
Specimen Requirements:
Minimum Volume:	2 mL serum
Container:	Gold top (serum separator) tube
Reference Range:
See individual test listings.
Clinical Utility:
Aid in diagnosis of acute or recent infection.

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Total Bilirubin
See Bilirubin, Total (Infants 15 days to adults)

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Total Bilirubin, Neonatal
See Bilirubin, Total Neonatal (Infants <15 days old)

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Total Calcium
See Calcium, SerumTotal CK
See Creatine Phosphokinase, Total,Serum

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Total CO2
See Carbon Dioxide, Total

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Total Eosinophil Count
See Eosinophil Count, Whole Blood

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Total Hemolytic Complement
See Complement, CH50

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Total Homocysteine
See Homocysteine, Plasma

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Total Iron Binding Capacity Profile		Test Code: TIBCP
Includes:	•Iron, Serum •Transferrin •Calculation of Percent Saturation and TIBC
CPT:	83540, 84466
Alternate Name:	Percent Saturation, PSAT; % Sat, TIBC
Methodology:	See individual test listings.
Testing Schedule:	Routine, daily
Report Available:	1 day
Specimen Requirements:
Minimum Volume:	1 mL serum
Container:	Gold top (serum separator) tube
Collection:	•Specimen should be collected prior to therapeutic iron dose or blood transfusion. •Iron determinations on patients who have had blood transfusions should be delayed for at least 4 days.
Reference Range:
•Total iron binding capacity (TIBC) 260-430 mg/mL •Percent saturation 20% to 50%
Clinical Utility:
Increased total iron binding capacity is often seen in iron deficiency states, parental iron administration, pregnancy without iron supplements, and hepatitis or hepatic necrosis. Decreased concentrations are often seen in chronic inflammatory disorders, kwashiorkor, chronic iron overloading, and malignancies.

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Total Protein, Blood
See Protein, Total, Serum

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Total Protein, Urine
See Protein, Total, Urine

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Total Reducing Sugars, Urine
See Reducing Substances, Semiquantitative, Urine

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Total T3; Total Tridothryonine
See T3, Total, Serum

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Total T4
See T4, Total, Serum

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Total WBC
See WBC, No Differential
See WBC with Manual Differential

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Toxic Shock Antibody Profile		Test Code: TSSN
Includes:	TSST-1 antibody Enterotoxin B antibody
CPT:	86609 (x2)
Alternate Name:	TSST-1/Enterotoxin B
Methodology:	Latex Agglutination
Testing Schedule:	Routine, 1 time per week
Report Available:	7-10 days
Specimen Requirements:
Minimum Volume:	1 mL serum
Container:	Gold top (serum separator) tube
Special Instructions and/or Comments:
Refrigerate
Reference Range:
Antibody detected.
Clinical Utility:
This test is thus designed to identify antibody-negative individuals at risk for TSS; it should not be used as a tool for diagnosing TSS.

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Toxin A/B by EIA
See Clostridium difficile Toxin A/B Assay

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Toxin Assay
See Clostridium difficile Toxin A/B Assay

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Toxin Assay, Clostridium difficile
See Clostridium difficile Toxin A/B Assay

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Toxo IgG Antibody
See Toxoplasma IgG Antibody

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Toxo IgG, IgM
See Toxoplasma Antibody Profile

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Toxo IgM
See Toxoplasma IgM AntibodyToxo Titer
See Toxoplasma IgG Antibody

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Toxoplasma Antibody Profile		Test Code: TOXP
Includes:	Toxoplasma gondii IgG and IgM antibodies.
CPT:	86777, 86778
Alternate Name:	T. gondii IgG, IgM; Toxo IgG , IgM
Methodology:	See individual test listings.
Testing Schedule:	Routine, 2 times per week
Report Available:	5-7 days
Specimen Requirements:
Minimum Volume:	1 mL serum
Container:	Gold top (serum separator) tube
Reference Range:
See individual test listings and the following table. Toxoplasma Profile Interpretation Toxo IgG Toxo IgM Comments N N No detectable antibody to Toxoplasma gondii and suggests no current, recent, or past infection. Such individuals are presumed to be susceptible to primary infection. Consideration of symptom onset with time of testing is important. Second specimen should be submitted if results do not correlate with clinical situation. N P May suggest very early acute infection with Toxoplasma gondii. This pattern warrants a second specimen to document seroconversion as well as to rule out possible cross-reacting antibodies. P P Suggests current or recent Toxoplasma gondii infection. Results should be interpreted in light of clinical presentation. IgM antibodies may persist for several months, or in rare cases, several years after infection. P N Suggest past infection with or exposure to Toxoplasma gondii. Clinical Utility Support the serodiagnosis of toxoplasmosis.

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Toxoplasma IgG Antibody		Test Code: TOXG
Includes:	Toxoplasma IgG antibodies
CPT:	86777
Alternate Name:	Toxo Antibody; Toxo IgG Antibody; Toxo Titer
Methodology:	Enzyme-Linked Immunosorbent Assay (ELISA)
Testing Schedule:	Routine, 2 times per week
Report Available:	5-7 days
Specimen Requirements:
Minimum Volume:	1 mL serum
Container:	Gold top (serum separator) tube
Reference Range:
ELISA antibody index •No antibody detected<0.90 •Equivocal0.91-1.09 •Antibody detected>1.10
Clinical Utility:
Support the serodiagnosis of toxoplasmosis.

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TPN Profile, Neonatal		Test Code: NTPN
Includes:	Albumin, Alanine aminotransferase (ALT), Alkaline Phosphatase, Total, Aspartate aminostransferase (AST), Bilirubin, Direct Neonatal, Creatinine, Magnesium, Phosphorus, Protein, Total, Triglyceride, Urea Nitrogen (BUN)
CPT:	82040, 84460, 84075, 84450,82248, 82565, 83735, 84100, 84155, 84478, 84520
Alternate Name:	Neonatal Total Parenteral Nutrition Profile
Methodology:	See indicidual test listing
Testing Schedule:	Routine daily, STAT testing available
Report Available:	1 day
Specimen Requirements:
Minimum Volume:	1 mL serum
Container:	Gold top (serum separator) tube OR 1 full yellow or red B-D Microtainer™ tube
Reference Range:
See individual test listing
Critical Values:
See individual test listings

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TPO Antibody
See Thyroid Peroxidase Autoantibody

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TPPA
See Treponemal Confirmation Assay,TP-PA

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Tracheal Secretion Culture
See Culture, Sputum

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Transferrin		Test Code: TRAN
CPT:	84466
Alternate Name:	Siderophilin
Methodology:	Rate
Testing Schedule:	Routine, daily
Report Available:	1day
Specimen Requirements:
Minimum Volume:	1 mL serum
Container:	Gold top (serum separator) tube
Reference Range:
215-380 mg/dL
Clinical Utility:
Differential diagnosis of anemia; monitor its effectiveness of treatment for anemia.

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Transferrin Receptor (TRFR), Soluble		Test Code: STFR
CPT:	84238
Alternate Name:	Soluble Transferrin Receptor (sTFR)
Methodology:	Nephelometry
Testing Schedule:	Routine, Daily
Report Available:	3-5 days
Specimen Requirements:
Minimum Volume:	1 mL serum
Container:	Gold top (serum separator) tube
Special Instructions and/or Comments:
• Centrifuge tube and transfer serum to plastic aliquot vial. • Refrigerate
Reference Range:
0.76 - 1.76 mg/L
Clinical Utility:
Soluable Transferrin Receptor (start) values can be within normal limits over a broad range of body iron stores and is elevated only when there is functional (ie, cellular) iron deficiency. It is usually not affected by chronic disease states. sTFR levels are about 6% higher in people who live in high altitudes (above 2500 ft/1600 m) and in African Americans. Reference values may not apply to pregnant females and recent or frequent blood donors.

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Trazodone		Test Code: TROZ
CPT:	80299
Alternate Name:	Desyrel®
Methodology:	High Performance Liquid Chromatography (HPLC)
Testing Schedule:	Routine, Monday-Friday Only
Report Available:	3-5 days
Specimen Requirements:
Minimum Volume:	3 mL serum
Container:	Red top tube, no serum separator
Collection:	Collect 12 hours after the last dose following a minimum of 5 days on the drug.
Special Instructions and/or Comments:
•Centrifuge, transfer to plastic aliquot tube and freeze.Once frozen, transport specimen submerged in dry ice. •Hemolyzed specimens are NOT acceptable.
Reference Range:
500-1,100 ng/mL
Clinical Utility:
Useful for monitoring for optimal therapeutic concentrations.

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Treponema pallidum IgM Antibody		Test Code: TPIGM
Includes:	NOTE Best utilized as a follow up when reactive RPR and reactive Treponemal confirmation results have been obtained on both the mother and the baby. Qualitative assessment for an IgM specific Treponema pallidum antibody in newborns, as an aid in the diagnosis of congenital syphilis.
CPT:	86780
Alternate Name:	T. pallidum Antibody, IgM; T. pallidum IgM; Treponemal IgM Antibody
Methodology:	Indirect Fluorescent Antibody (IFA)
Testing Schedule:	Routine, daily
Report Available:	1-3 days
Specimen Requirements:
Minimum Volume:	0.5 mL serum
Container:	Gold top (serum separator) tube OR 1 full yellow or red BD Microtainer™ tube
Special Instructions and/or Comments:
•Collected from newborns only. •DO NOT submit cord blood.
Reference Range:
•Nonreactive No evidence of IgM specific T. pallidum antibody. •Reactive IgM specific T. pallidum antibody present.
Clinical Utility:
Confirmatory serologic test for syphilis.

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Treponemal Confirmation Assay, TP-PA		Test Code: MHAT
CPT:	86781
Alternate Name:	T. pallidum Passive Agglutination; TPPA Replaces FTA-Abs; HATTS Test; MHA-Tp; Microhemagglutination Test for T. pallidum
Methodology:	Passive Agglutination
Testing Schedule:	Routine, 1 time per week
Report Available:	5-7 days
Specimen Requirements:
Minimum Volume:	1 mL serum
Container:	Gold top (serum separator) tube
Special Instructions and/or Comments:
•The Department of Health requires mandatory reporting of any reactive result.
Reference Range:
•Nonreactive Suggests no recent or past exposure to Treponema pallidum. •Reactive May indicate past or present infection with Treponema pallidum. NOTE Cross reactions may occur with other treponemal diseases such as pinta, yaws, or bejel.TP-PA results, like FTA-Abs results, cannot be used to monitor treatment efficacy or detect reinfection. Once reactive, the TP-PA remains reactive for life.
Clinical Utility:
This assay detects Treponema pallidum antibodies as an aid in the diganosis of syphilis.

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Treponemal IgM Antibody
See Treponema pallidum IgM Antibody

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Triavil®
See Amitriptyline

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Trichomonas vaginalis Preparation		Test Code: TRCH
Includes:	Examination of specimen for motile trichomonas.
CPT:	87210
Alternate Name:	Cervical Trich Smear; Hanging Drop for Trichomonas Vaginalis; Trichomonas vaginalis Wet Preparation, Urine; Urethral Trich Smear; Urine Trich Wet Mount; Vaginal Trich Smear; Trichomonas vaginalis Wet Preparation; Wet Prep for Trichomonas vaginalis
Methodology:	Microscopic Examination
Testing Schedule:	Routine, STAT testing available
Report Available:	1 day
Specimen Requirements:
Minimum Volume:	Vaginal, cervical, urethral swabs, prostatic fluid, OR urine sediment
Container:	Sterile tube containing 1 mL sterile saline (nonbacteriostatic saline)
Collection:	The specimen should be collected using a speculum without lubricant.The mucosa of the posterior vagina may be swabbed or the secretions may be collected with a pipette. Express the swab into the saline for transport to the laboratory.
Special Instructions and/or Comments:
•Transport to the laboratory immediately. •DO NOT refrigerate.
Reference Range:
No trichomonas seen.

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Trichomonas vaginalis Wet Preparation
See Trichomonas vaginalis Preparation

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Trichomonas vaginalis Wet Preparation, Urine
See Trichomonas vaginalis Preparation

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Triglycerides, Body Fluid		Test Code: FTRIG
CPT:	84478
Methodology:	Colorimetry
Testing Schedule:	Routine, STAT testing available
Report Available:	1 day
Specimen Requirements:
Minimum Volume:	1 mL body fluid
Container:	Red top tube, no serum separator
Special Instructions and/or Comments:
Refrigerate
Reference Range:
Not established, must be interpreted with clinical findings.

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Triglycerides, Serum		Test Code: TRIG
CPT:	84478
Alternate Name:	TGs; Trigs
Methodology:	HNL: Colorimetry LPP: Bichromatic End Point
Testing Schedule:	Routine, STAT testing available
Report Available:	1 day
Specimen Requirements:
Minimum Volume:	1 mL serum
Container:	Gold top (serum separator) tube
Collection:	•Patient should fast for 12-14 hour (nothing by mouth except water and any essential medications). •Prior to testing, diet should be stable for 3 weeks and alcohol should be avoided for 3 days.
Reference Range:
<150 mg/dL Special Note: Reference Ranges are reflective of the NCEP Adult Treatment Panel (ATP) III Guidelines published in JAMA, MAy 26, 2001 Borderline High 150-199 mg/dL High 200-499 mg/dL Very High >500 mg/dL NOTE: Values are reflective of the NCEP Adult Treatment Panel (ATP) III guidelines published in May 2001.
Clinical Utility:
Useful for cardiovascular risk assessment.

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Trimipramine		Test Code: TRII
CPT:	82491
Alternate Name:	Surmontil®
Methodology:	High Performance Liquid Chromatography with Ultraviolet Detection (HPLC- UV)
Testing Schedule:	Routine, daily
Report Available:	3-5 days
Specimen Requirements:
Minimum Volume:	2 mL serum
Container:	Red top tube, no serum separator
Special Instructions and/or Comments:
Refrigerate
Reference Range:
Therapeutic 50-300 ng/mL
Critical Values:
1000 ng/mL
Clinical Utility:
Useful for monitoring compliance and accessing toxicity.

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Triple Screen, Maternal Serum		Test Code: TRIPL
Includes:	For use as a screen for Neural Tube defects, Down’s syndrome, and Trisomy 18 in pregnant women • MsAFP Total 0223 ß-hCG • uE3 Interpretive report
CPT:	82105 , 84702, 82677
Alternate Name:	AFP3; Tri-Screen
Methodology:	See individual test listings.
Testing Schedule:	2 times per week
Report Available:	3-5 days
Specimen Requirements:
Minimum Volume:	2 mL serum
Container:	Gold top (serum separator) tube
Collection:	•Acceptable time for testing is between the 15th and 20th week of gestation. Special Instructions and/or Comments •Must include Maternal Serum Prenatal Screening Demographic Form with the following information maternal age, maternal weight, race, diabetic status, multiple pregnancy, and gestational age. •Specimen must be obtained prior to amniocentesis. NOTE If this is an IVF pregnancy, include age of donor egg.
Reference Range:
•Reference ranges are reflective of gestational age and are expressed as “multiples of the median” (MOM). •Risks are routinely reported for NTD, Down syndrome and Trisomy 18.
Clinical Utility:
Screening for indication of fetal anomalities including Down syndrome (DS) and Neural Tube Defects (NTD).

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Tri-Screen
See Triple Screen, Maternal Serum

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Tropheryma whipplei, PCR, Cerebrospinal Fluid		Test Code: WHIPP
CPT:	87798
Alternate Name:	T. whipplei PCR
Methodology:	Polyermase Chain Reaction (PCR)
Testing Schedule:	Routine, 1 time per week
Report Available:	7-10 days
Specimen Requirements:
Minimum Volume:	0.5 mL cerebrospinal fluid
Container:	Sterile conical tube
Special Instructions and/or Comments:
Refrigerate
Reference Range:
Negative for Tropheryma whipplei
Clinical Utility:
Useful for diagnosis of Whipple’s disease, especially for identifying inconclusive or suspicious cases.

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Troponin		Test Code: TROPI
CPT:	84484
Methodology:	Direct Chemiluminescence
Testing Schedule:	Routine, STAT testing available
Report Available:	1 day
Specimen Requirements:
Minimum Volume:	2 mL serum
Container:	Gold top (serum separator) tube
Special Instructions and/or Comments:
•Transport to the laboratory immediately. •Testing must be performed within 4 hours of collection. •If delay in transport, centrifuge, transfer to plastic aliquot tube and refrigerate for up to 24 hours.
Reference Range:
< 0.04 ng/mL
Critical Values:
> 0.78 ng/mL
Clinical Utility:
Used in the evaluation of acute cardiac injury, MI.

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Troponin 1		Test Code: ROMI1
Includes:	Troponin I
CPT:	84484
Alternate Name:	• Rule out myocardial Infarct 1 • MI Profile • Myocardial Infarction Profile
Methodology:	Direct Chemiluminescence
Testing Schedule:	Routine daily, STAT testing available
Specimen Requirements:
Minimum Volume:	2 mL serum
Container:	Gold top (serum separator) tube
Collection:	• Transport to laboratory immediately. • Testing must be performed within 4 hours of collection.
Reference Range:
< 0.04 ng/mL
Critical Values:
> 0.78 ng/mL
Clinical Utility:
Used in the evaluation of acute cardiac injury, MI

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Troponin 2		Test Code: ROMI2
Includes:	Troponin I
CPT:	84484
Alternate Name:	• Rule out myocardial Infarct 1 • MI Profile • Myocardial Infarction Profile
Methodology:	Direct Chemiluminescence
Testing Schedule:	Routine daily, STAT testing available
Specimen Requirements:
Minimum Volume:	2 mL serum
Container:	Gold top (serum separator) tube
Collection:	• Transport to laboratory immediately. • Testing must be performed within 4 hours of collection.
Reference Range:
< 0.04 ng/mL
Critical Values:
> 0.78 ng/mL
Clinical Utility:
Used in the evaluation of acute cardiac injury, MI.

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Troponin 3		Test Code: ROMI3
Includes:	Troponin I
CPT:	84484
Alternate Name:	• Rule out myocardial Infarct 1 • MI Profile • Myocardial Infarction Profile
Methodology:	Direct Chemiluminescence
Testing Schedule:	Routine daily, STAT testing available
Specimen Requirements:
Minimum Volume:	2 mL serum
Container:	Gold top (serum separator) tube
Collection:	• Transport to laboratory immediately. • Testing must be performed within 4 hours of collection.
Reference Range:
< 0.04 ng/mL
Critical Values:
> 0.78 ng/mL
Clinical Utility:
Used in the evaluation of acute cardiac injury, MI.

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Trypanosoma cruzi Antibodies
See Chagas Disease Antibody Profile

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Tryptase		Test Code: TRYPT
CPT:	83520
Methodology:	Fluoroenzyme Immunoassay (FEIA)
Testing Schedule:	Routine, daily
Report Available:	3-5 days
Specimen Requirements:
Minimum Volume:	1 mL serum
Container:	Gold top (serum separator) tube
Special Instructions and/or Comments:
Centrifuge, transfer to plastic aliquot tube and freeze.Once frozen, transport specimen submerged in dry ice.
Reference Range:
< 11.5 ng/mL
Clinical Utility:
Useful for assessing mast cell activation, which may occur as a result of anaphylaxis, or allergen challenge, or in patients with systemic mastocytosis or mast cell activation syndrome.

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TSH
See Thyroid Stimulating Hormone, Serum

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TSH with Reflex to FT4		Test Code: TSHRF
Includes:	TSH, FT4 (when TSH is abnormal)
CPT:	844843, 84439
Alternate Name:	TSH Reflex to FT4
Methodology:	Direct Chemiluminescence
Testing Schedule:	Routine, daily, STAT testing available 0600-2100
Report Available:	1 day
Specimen Requirements:
Minimum Volume:	1 mL serum
Container:	Gold top (serum separator) tube
Special Instructions and/or Comments:
•Testing must be performed within 8 hours of collection. •If delay in transport, centrifuge, transfer to plastic aliquot tube and refrigerate tube, in the upright position. Specimen should remain capped until time of testing.
Reference Range:
See individual test listings
Clinical Utility:
See individual test listings.

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TSI
See Thyroid Stimulating Immunoglobulin

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TSST-1/Enterotoxin B
See Toxic Shock Antibody Profile

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T-Strain Mycoplasma Culture
See Culture, Ureaplasma urealyticum

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TT
See Thrombin Time, Plasma

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tTG Antibody
See Tissue Transflutaminase IgA Autoantibody

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tTG IgA Autoantibody
See Tissue Transflutaminase IgA Autoantibody

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Tuberculosis Culture
See Culture, Mycobacteria

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TWAR
See Chlamydia Antibody Profile

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Type and Antibody Screen		Test Code: ABRS
Includes:	ABO Antibody Screen Rh (D) Reflexed when appropriate Antibody Identification Direct Antiglobulin Test Eluate Phenotype Antigen Test
CPT:	86850, 86900, 86901Reflexed when appropriate 86870, 86880,86860, 86905, 86906, 86886
Related Information:	•Prenatal Testing •Type and Crossmatch
Alternate Name:	Antibody Identification, Antibody Screen; Red Blood Cells; Antibody Screening Test; Antiglobulin Test, Indirect; Atypical Antibody; Coombs Indirect; Indirect Antiglobulin Test; Indirect Anti-Human Globulin Test; Indirect Coombs; Irregular Antibodies; Type and Screen
Methodology:	Hemagglutination, Column Agglutination
Testing Schedule:	Routine, STAT testing available
Report Available:	1-3 days
Specimen Requirements:
Minimum Volume:	4 mL plasma
Container:	Pink top (EDTA) tube
Special Instructions and/or Comments:
•Non-hospitalized patients Submit specimen with a completed Blood Bank Requisition (LAB-04) Form.
Reference Range:
•Negative: No atypical antibody detected. •Positive: Presence of an alloantibody and/or warm/cold autoantibody.
Clinical Utility:
Antibody identification procedures are performed to identify antibody specificity and to eliminate the presence of other underlying alloantibodies.The antibody screening test may not detect antibodies to low incidence antigens or antibodies which have undetectable titers by routine techniques. IgG alloantibodies reacting at 37°C and/or in the antiglobulin phase are generally considered clinically significant in transfusion and in hemolytic disease of the newborn (HDN). IgM alloantibodies reacting at room temperature and below are generally considered clinically insignificant in transfusion and in hemolytic disease of the newborn. Weak low titer antibodies or antibodies to low incidence antigens may not be detectable at the time of testing.

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Type and Rh
See ABO and Rh (D) Type

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Type and Screen
See Type and Anitbody Screen

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Tzank Smears
See Cytopathology, Direct Smears