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Lab Test Details

Hepatitis A Antibody, IgG

Updated12/30/2020 (reviewed 1/30/2025)
Search TermsAnti-HAV IgG; HAV Ab IgG
How to OrderOn the Virology/Immunology Test Request Form (OHA0042), in the "Hepatitis" section, check the box for "Hepatitis A IgG Antibody."
AvailabilityAll clients
PerformedDaily on regular business days
Time to ReportingWithin 3 working days after receipt of specimen
CPT Code

Specimen Collection Details

CollectionOne 7 ml red top tube or serum separator tube (SST).
If SST tubes are used, follow instructions provided by the manufacturer.
Optimal VolumeBlood: 5 ml; Serum 1.5 ml
Minimum VolumeBlood: 3 ml; Serum 0.5 ml
HandlingAfter blood clots, store specimens at refrigerated temperatures (2-8°C) pending transport. DO NOT FREEZE WHOLE BLOOD.

If possible remove the serum from the clot as soon as possible. Specimen must be tested within 7 days of collection.
TransportPackage specimens with fully frozen ice packs to maintain refrigerated temperatures during transport.

If serum is frozen, ship with dry ice to maintain frozen temperatures during transport.
Rejection CriteriaSpecimens with anticoagulant or visible contamination; cadaver specimens; heat inactivated, pooled, diluted, and grossly hemolyzed specimens.

Refrigerated specimens not tested within 8 calendar days of specimen collection. Frozen specimens not tested within 30 calendar days of specimen collection.

Specimens are subject to the requirements of the OSPHL Specimen Submission Policy (pdf).
CommentsOriginal material submitted for testing is retained for 7 calendar days after receipt at the laboratory.

This assay is indicated for qualitative detection of IgG antibody to hepatitis A virus in human serum and cannot be used for diagnosis of acute Hepatitis A infection. The presence of IgG anti-HAV, with a nonreactive IgM anti-HAV test result, implies past infection with hepatitis A virus or vaccination against HAV. If the IgG anti-HAV results are inconsistent with clinical evidence, additional testing is suggested to confirm the result.

Method Details

MethodologyChemiluminescent microparticle assay (CMIA) on the Abbott Diagnostics Alinity i platform
Performance
Specifications		Detailed information about assay performance can be obtained by contacting the manufacturer of the testing platform, Abbott Diagnostics, or on the US Food and Drug Administration website.

Change Log

1/30/2025Reviewed; no revisions
5/2/2023Reviewed; no revisions