9 days
Real-time polymerase chain reaction (PCR)
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Detects JC virus DNA in CSF. Used in diagnosing progressive multifocal leukoencephalopathy (PML).
CSF
0.5 mL
Sterile container for CSF
No special preparation is required for this test. You may eat, drink, and take your medications as normal, unless instructed otherwise by your healthcare provider.
This test does not require any special collection or pre-analytical handling. Follow routine specimen collection protocols.
| Temperature | Period |
|---|---|
| Room temperature | 7 days |
| Refrigerated | 7 days |
| Frozen | 90 days |