JC Virus Antibody (with Index) with Reflex to Inhibition Assay
| Abbrev Code: | JCVINX | ||
| Order Code: | LAB6920 | Order Name: | JC Virus Ab Index Reflex Inhibition |
| Synonyms: | JC Polyoma Virus; Stratify JCV Antibody; Index | ||
| Methodology: | Immunoassay | ||
| CPT Codes: | 86711 x1, 86790 x1 | ||
| Turnaround Time: | Specimens are sent to reference laboratory Mon-Fri; results are reported within 14 days. | ||
| Special Instructions: | If the JCV Antibody result is indeterminate, stratified JCV Antibody Inhibition Assay will be performed. | ||
Collection Instructions
| Specimen: | Blood |
| Optimal Volume: | 1 mL |
| Minimum\Peds Volume: | 0.7 mL |
| Container: | Red (no gel) Alternate Containers: Purple (EDTA), Red or gold (gel) |
| Causes for Rejection: | Gross hemolysis, grossly lipemic, grossly icteric |
Processing and Shipping
| Specimen Processing: | Within 2 hours of collection, centrifuge and aliquot 0.5 mL, 0.25 mL minimum serum or plasma. Store at room temperature. |
| Shipping Instructions: | Ship at room temperature. |
| Stability: | 7 days at room temperature; 14 days refrigerated; 90 days frozen. |
| Test Performed at or Referral Lab | Lab Sendouts (Quest Diagnostics) |
| Referral Lab number: | 91665 |
Interpretive
| Reference Range: |
Negative
Index Interpretive Criteria
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| Use: | 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. |
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