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26029 Stratify JCV ™ Ab (w/Index) w/Rflx to Inhibition Assay (91665)

Stratify JCV ™ Ab (w/Index) w/Rflx to Inhibition Assay (91665)
Test Code: STJCVSO
Synonyms/Keywords
​Stratify JCV Antibody & Reflex Inhibition (91665)
Test Components
Index Value
JCV Antibody
Useful For
​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.
Specimen Requirements
Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)
​Serum ​Red Top Tube (RTT) ​Serum Separator Tube (SST) ​0.5 mL ​0.25 mL ​
​        OR ​ ​ ​ ​ ​
​Plasma ​EDTA Lavender Top Tube (LTT) ​ ​0.5 mL ​0.25 mL ​
Specimen Stability Information
Specimen Type Temperature Time
​Serum ​ ​ ​Refrigerate ​14 days
​Ambient ​7 days
​Frozen ​3 months
​Plasma ​ ​ ​Refrigerate ​14 days
​Ambient ​7 days
​Frozen ​3 months
Rejection Criteria
Hemolysis
​Lipemia
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
​Quest Diagnostics who forward to Focus Laboratories ​Tuesday through Saturday ​1 day (same day) ​Inhibition Assay
Reference Lab
Quest Diagnostics - Nichols Institute
Reference Range Information
<0.20 – Negative
0.20 – 0.40 – Indeterminate
>0.40 – Positive
Interpretation
If the Index Value is between 0.19 and 0.41 (not inclusive), then JC Virus Antibody Inhibition Assay (test code 90259) [Focus 34340]) will be performed.
Synonyms/Keywords
​Stratify JCV Antibody & Reflex Inhibition (91665)
Test Components
Index Value
JCV Antibody
Ordering Applications
Ordering Application Description
​COM ​Stratify JCV Antibody & Reflex Inhibition (91655)
​Centricity ​Stratify JCV Antibody & Reflex Inhibition (91655)
​Cerner ​Stratify JCV Antibody & Reflex Inhibition (91655)
If the ordering application you are looking for is not listed, contact your local laboratory for assistance.
Specimen Requirements
Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)
​Serum ​Red Top Tube (RTT) ​Serum Separator Tube (SST) ​0.5 mL ​0.25 mL ​
​        OR ​ ​ ​ ​ ​
​Plasma ​EDTA Lavender Top Tube (LTT) ​ ​0.5 mL ​0.25 mL ​
Specimen Stability Information
Specimen Type Temperature Time
​Serum ​ ​ ​Refrigerate ​14 days
​Ambient ​7 days
​Frozen ​3 months
​Plasma ​ ​ ​Refrigerate ​14 days
​Ambient ​7 days
​Frozen ​3 months
Rejection Criteria
Hemolysis
​Lipemia
Useful For
​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.
Test Components
Index Value
JCV Antibody
Reference Range Information
<0.20 – Negative
0.20 – 0.40 – Indeterminate
>0.40 – Positive
Interpretation
If the Index Value is between 0.19 and 0.41 (not inclusive), then JC Virus Antibody Inhibition Assay (test code 90259) [Focus 34340]) will be performed.
For more information visit:
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
​Quest Diagnostics who forward to Focus Laboratories ​Tuesday through Saturday ​1 day (same day) ​Inhibition Assay
Reference Lab
Quest Diagnostics - Nichols Institute
For billing questions, see Contacts
For most current information refer to the Marshfield Laboratory online reference manual.