This assay has been discontinued. The referred alternate is an order placed for a MSO 994/LAB994 for 140215 SuperCycle West Nile Virus, CSF or 140240 SuperCycle West Nile Virus, Plasma
Detect West Nile Virus (WNV) RNA
Spinal fluid testing should NOT be ordered unless a patient has a positive serum WNV Antibody result. (LAB13530)
Immediately following collection, mix sample thoroughly by gently inverting 5 times
Lavender or yellow:
Immediately after collection, mix tube thoroughly by gentle inversion, 8 - 10 times, to prevent clotting
Lavender or yellow (plasma):
CSF:
Freeze
Frozen (strict)
UltraQual™ Polymerase Chain Reaction (PCR)
Negative
The direct detection of WNV is a valuable tool in determining whether a patient is infected with West Nile Virus. It is also useful in determining whether blood and blood products are free of detectable WNV prior to distribution. PCR is able to directly detect WNV RNA and does not rely on antibody markers of WNV infection, which are produced after RNA is detectable in newly infected individuals.