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Varicella-zoster antibodies, chickenpox, VZ.
To assist in diagnosing chickenpox or shingles related to a varicella-zoster infection and to assess for immunity.
Serum collected in a gold-, red-, or red/gray-top tube. Place separated serum into a standard transport tube within 2 hr of collection.
(Method: Enzyme immunoassay)
|IgM and IgG||Interpretation|
|Negative||0.89 index or less||No significant level of detectable antibody|
|Indeterminate||0.9–1 index||Equivocal results; retest in 10–14 d|
|Positive||1.1 index or greater||Antibody detected; indicative of recent immunization, current or recent infection|