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Test Code VZVAB Varicella-Zoster Antibody, IgG, LAB162


Indirect chemiluminescence immunoassay (CLIA)

Performing Laboratory

St. Luke's Hospital Cedar Rapids

Specimen Requirements


Preferred: Gold-top serum gel

Acceptable: Plain, red top

Specimen Volume: 170 uL of serum

Stability: If the assay is performed within seven days of sample collection, the samples may be kept at 2-8°C, otherwise they should be dispensed in aliquots and stored frozen (-20°C or below).

Samples should not undergo more than five freeze thaw cycles.

Reference Values

Value Status
<135 Index Negative = Non-immune
≥ 135 and ≤ 165 Index Equivocal
>165 Index Positive = Immune


Day(s) Test Set Up

Monday through Friday, day shift only

Test Classification and CPT Coding


Useful For

Identification of past infections with the Varicella-Zoster virus.  Varicella (chickenpox) and Zoster (shingles) are two different clinical manifestations of infection with the Varicella-Zoster virus (VZV)

Report Available

1-2 days upon receipt.