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HelpEpic Test Code LAB492101 STRATIFY JCV™ Antibody (with Index) with Reflex to Inhibition Assay
Additional Codes
QUEST Code: 91665
Specimen Type
0.5 mL Serum or Plasma collected in an EDTA (lavender-top) tube
Preferred Container
Red Top Tube
Alternate Container
Serum Gel Tube or EDTA (lavender-top) tube
Minimum Volume
0.5 mL
Transportation Needs
Room Temperature
Shipping refrigerated is acceptable
Specimen Stability
Room temperature: 7 days
Refrigerated: 14 days
Frozen: 90 days
Causes for Rejection
Mislabeled or unlabeled specimen
Less than 50% draw for Vacutainer tubes
Hemolysis
Reference Values
Negative
Index Interpretive criteria
| <0.20 | Negative |
| 0.20-0.40 | Indeterminate |
| >0.40 | Positive |
Days of Analysis
Mon-Sat
Turnaround Time
2-5 days
Clinical Significance
The JC Virus (JCV) is associated with progressive multifocal leukoencephalopathy (PML). Detection of antibodies to JCV in serum or plasma is a reliable indicator of exposure to JCV. The analytical performance characteristics were determined for multiple sclerosis patients.
Includes
If the Index Value is between 0.20-0.40 (inclusive), then STRATIFY JCV™ Antibody Inhibition Assay will be performed at an additional charge (CPT code: 86711).
Methodology
Immunoassay (IA)
CPT Code
86711
Last Updated
13-Oct-20