Reference Interval:
0.89 IV or less: Negative - No significant level of detectable varicella-zoster IgG antibody.
0.90-1.09 IV: Equivocal - Repeat testing in 10-14 days may be helpful.
1.10 IV or greater: Positive - IgG antibody to varicella-zoster detected, which may indicate a current or past varicella-zoster infection. Positive IgG antibody levels in the absence of current clinical symptoms may indicate immunity (98% correlation with IFA).
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| Interpretive Data: |
The best evidence for current infection is a significant change on two appropriately timed specimens, where both tests are done in the same laboratory at the same time.
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| CPT Code(s): |
86787
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Cross References: |
Chickenpox (Varicella-Zoster Virus Antibody, IgG), Herpes Zoster (Varicella-Zoster Virus Antibody, IgG), Shingles (Varicella-Zoster Virus Antibody, IgG), VZV Antibody, IgG (Varicella-Zoster Virus Antibody, IgG) |