Name: Varicella-Zoster Ab, IgG
Test Name: Varicella-Zoster Ab, IgG
Health Link Test Code: VZIGG
LIS Test Code: VZVIGG
CPT Code(s): 86787
The intent of the test system together with other clinical information is to aid in the determination of immune status, and/or aid in the diagnosis of VZV (Varicella-Zoster Virus).
Days Performed: Three times per week.
In-Lab Turnaround Time: 1 - 4 days.
Collection Container: Red cap with yellow ring (SST)
Also Acceptable: Red top
Collection Volume: 1 mL
Pediatric Collection Volume: 1 mL
3 months at 20°C or greater
Sample Analyzed: Serum
Testing Volume: 0.5 mL
Pediatric Testing Volume: 0.3 mL
Centrifuge. Transfer cell-free serum to plastic vial. Refrigerate.
Transport specimen to Laboratory. Transport with coolant pack if coming from clinic locations.
Grossly hemolyzed/lipemic, heat-treated serum, microbially contaminated and serum containing heavily-visible particulate.
|Negative:||No detectable IgG antibodies to VZV. Patient is presumed to be non-immune and is susceptible to a primary infection.|
|Equivocal:||Immune status cannot be determined. If clinically warranted, a second sample should be taken at least fourteen days after the first.|
|Positive:||Reactive for IgG antibodies to VZV, indicating a current or past varicella-zoster infection. A positive IgG antibody level in the absence of current clinical symptoms indicates immunity to VZV.|
All equivocal test results will be repeated within two working days.
If a numerical value and interpretation of the assay is needed please refer to the Occupational MMR/VZV Antibody Assessment Panel at an approved reference laboratory.