Celio Health
0
Shop TestsPanels & Bundles How It WorksWhat Tests CostAbout UsFind a Quest locationBlog
Log in or create account
Lab test

Hepatitis B Core Antibody (IgM) Test

The Hepatitis B Core Antibody (IgM) test measures IgM-class antibody against the hepatitis B core antigen in a serum sample. Quest describes this antibody as a marker associated with acute hepatitis B virus infection.

Quest patient service center

About this test

This test measures hepatitis B core-specific IgM antibody in serum using immunoassay methodology. Quest notes that this antibody has been detected in most acute hepatitis B infections, and that in some cases it may be the only specific marker present for identifying an acute infection.

Who might consider this test?

  • That is why this antibody is typically ordered as part of a broader hepatitis B panel rather than on its own.

Test details

CollectionQuest patient service center

Quest resources

Additional details

This test isn't part of the Celio Health store at the moment, so it can't be ordered or requested here. The test menu lists everything that can.

Laboratory results should always be interpreted by a licensed clinician who knows your health history. This page is information about a test, not medical advice.

Frequently asked questions

What does this test measure?

It measures hepatitis B core-specific IgM antibody in a serum sample, using immunoassay methodology.

How is the sample collected?

The test uses a serum sample from a routine blood draw.

Do I need to prepare for this test?

No preparation instructions are listed for this test, though people follow any instructions their ordering clinician provides.

Why does this specific antibody matter?

Quest notes it has been detected in most acute hepatitis B infections and, in some cases, may be the only specific marker present for identifying an acute infection.

Last updated 2026-09-18 · How we write about lab testing

Educational content

This page is for general educational purposes only. It is not medical advice, and it is not a substitute for consultation with a qualified healthcare professional. Laboratory results should always be interpreted by a licensed clinician who knows your health history. If you have questions about your health or your results, talk with your doctor. If you think you may be experiencing a medical emergency, call 911.