Lab test
Hepatitis A Immunity Test - HAV Blood Test
A hepatitis A antibody test checks the blood for antibodies the immune system produces against the hepatitis A virus.
- Typical price
- From $144
- Results
- 1-3 business days
- Preparation
- See preparation notes below
- Sample
- Blood draw or sample collection at a local center
About this test
A hepatitis A antibody test checks the blood for antibodies the immune system produces against the hepatitis A virus. Total or IgG antibodies generally indicate past infection or vaccination, while IgM antibodies can suggest a recent infection. Clinicians order this test to confirm immunity before travel or certain treatments, to evaluate possible recent exposure, or to help investigate abnormal liver enzyme findings. Results are interpreted alongside symptoms, vaccination history, and other liver tests, and they do not by themselves diagnose active infection.
What this test measures
- Hepatitis A total/IgG antibody Indicates past infection or immunity from immunization.
- Hepatitis A IgM antibody Can suggest a recent hepatitis A infection.
Who this test may be right for
- People confirming immunity after hepatitis A vaccination.
- Individuals with possible recent hepatitis A exposure.
- Those with jaundice or abnormal liver tests.
- Travelers or workers with hepatitis A risk.
- People with a known close contact who had hepatitis A.
Before your visit
- No fasting is required for hepatitis A antibody testing.
- Take usual medications unless told otherwise.
- Tell the provider about vaccination history or exposure.
- Bring immunization records if immunity is being verified.
- A standard blood draw is used for the sample.
Understanding your results
A reactive total or IgG antibody result usually indicates past infection or successful immunization. A reactive IgM result can suggest a recent infection and may prompt additional evaluation. Negative results generally mean no detected immunity, which may be relevant for vaccination planning. Results should be interpreted with vaccination history and symptoms. Discuss them with a healthcare provider.
Order this test online
- Buy online in a few minutes - no doctor's visit needed for most tests.
- Sample collection at a patient service center near you.
- Results are typically ready within 1-3 business days.
- Secure, lab-reviewed results delivered to your account.
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Questions people ask
What is the difference between hepatitis A IgG and IgM?
IgG or total antibody usually reflects past infection or immunization, while IgM can indicate a recent hepatitis A infection.
Does a positive hepatitis A antibody mean I am immune?
A positive total or IgG hepatitis A antibody generally indicates immunity, but a provider should confirm the interpretation.
Does this test require fasting?
No, hepatitis A antibody testing does not require fasting.
Can vaccination cause a positive result?
Yes. Prior hepatitis A vaccination commonly produces detectable antibodies.
What does the Hepatitis A Immunity Test - HAV Blood Test measure?
This blood test panel is used to confirm whether or not an individual has had hepatitis A or has been immunized by detecting the presence of HAV antibodies.
Do I need to fast before this test?
Follow the lab's instructions.
How long do results take?
Most Hepatitis A Immunity Test - HAV Blood Test results are released in 1-3 business days. Specialty testing can take longer.
Is this test right for me?
This page is educational and not medical advice. Talk to a licensed healthcare provider about which tests fit your situation.
LabBookings is an independent directory. We compare test details and pricing information, but we are not a laboratory and we do not perform testing or provide medical advice. Always talk to a licensed healthcare provider about your results and treatment.
Laboratory services are provided by independent, CLIA-certified testing partners. Availability, pricing, and turnaround times can vary by location and are confirmed at checkout.