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Test Code LAB3506 STRATIFY JCV® DxSelect™ Antibody (with Index) with Reflex to Inhibition

Important Note

This test should only be ordered for patients in the MS Pt Program. Quest Diagnostics requisition must be filled out and sent with the samples.

Performing Lab

Quest Diagnostics

Ordering Recommendations

This assay is a qualitative assay for the detection of antibodies to JC virus (JCV) in human serum or plasma. This assay was designed and evaluated for use, in conjunction with other clinical data, as an aid in the stratification of risk for the development of progressive multifocal leukoencephalopathy (PML) in multiple sclerosis (MS) patients receiving or considering TYSABRI® (natalizumab) therapy.

Collection Device

Gold Top (SST)-Preferred

Red Top (Plain)

Purple Top (EDTA)

Stability (from collection to initiation)

Room Temp 7 Days
Refrigerated 14 Days
Frozen 90 Days

 

Storage/Transport Temperature

Room Temperature to the Sendouts Department

Processing

Centrifuge and pour into a transport tube.

Specimen Volume

1 mL serum or plasma

Minimum Requirements

0.5 mL

Last Review Date

10/22/26 ES