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JC Virus, PCR, Cerebrospinal Fluid		Test Code: JCVCF
CPT:	87799
Methodology:	Polymerase Chain Reaction (PCR)
Testing Schedule:	Routine, daily
Report Available:	2-4 days
Specimen Requirements:
Minimum Volume:	1 mL cerebrospinal fluid, FROZEN
Container:	Sterile conical tube
Special Instructions and/or Comments:
• Freeze fluid ASAP, preferably within 4 hours • Once frozen, transport specimen submerged in dry ice.
Reference Range:
Not detected.
Clinical Utility:
JC virus is the cause of progressive Multifocal leukoencephalopathy, a demyelinating neurologic disease of immunosuppressed patients.

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Jewish Metabolic Profile Jewish Profile
See Ashkenazi Jewish Profile

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Jo-1 Antibody
See Jo-1 Autoantibody

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Jo-1 Autoantibody		Test Code: JO1
CPT:	86235
Alternate Name:	Autoantibody to Jo-1;Jo-1 Antibody
Methodology:	Multiplex Flow Immunoassay
Testing Schedule:	Routine, Monday-Friday only
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:.........................< 1.0 U • Positive........................... > 1.0 U
Clinical Utility:
Useful for Evaluating patients with signs and symptoms compatible with a connective tissue disease, especially those patients with muscle pain and limb weakness, concomitant pulmonary signs and symptoms, Raynaud’s phenomenon and arthritis.

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Joint Fluid Culture
See Culture, Fluid, Aerobic

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Joint Fluid Cytology
See Cytopathology, Fluid