Sign in →

Test Code LAB162 Varicella Zoster Antibody - IgG

Additional Codes:

VZ

Collection:

Specimen: Blood

Container: Serum Separator or Plain Red Top Tube

Volume: 7 mL; Minimum 3 mL

Pediatric Collection:

One Gold or Red microtainer filled to 600 uL.

Storage Instructions:

Specimen may be held overnight at Room Temperature. Refrigerate for storage beyond 12 hours. Serum may be stored for up to 7 days at 2-8C. For longer storage, serum must be frozen at -20 or colder.

Turnaround Time (TAT):

Results reported same day as performed.

Test Availability:

Monday – Friday

Assay:

0.2 mL serum

Request Form:

Routine Laboratory Request Form

Send To:

UMC MAIN LABORATORY Specimen Receiving – EH319 Extension Hospital

Reference Interval:

Antibody Index Result Interpretation
< 0.8 AI Negative No IgG antibodies specific to VZV detected.
0.9 - 1.0 AI Equivocal Recommend obtaining additional sample for retesting.
> 1.1 AI Positive IgG antibodies specific to VZV detected. This may indicate the patient was exposed to VZV through infection or vaccination.

Interpretive Data:

Results from a single specimen may be used to determine immune status. Paired specimens are required to diagnose acute infection.