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Hepatitis A Antibody Blood Test, IgM

A Hepatitis A Antibody Blood Test is a differential diagnosis of hepatitis; the presence of IgM antibody to hepatitis A virus is good evidence for acute hepatitis A.

Sample Report

Test Code: 006734

Also Known As:

Methodology: Immunochemiluminometric assay (ICMA)

Preparation: No fasting required. Stop biotin consumption at least 72 hours prior to the collection.

Test Results: 2-3 days. May take longer based on weather, holiday or lab delays.

Sample Report

Test Code: 512

Also Known As:

Methodology: Immunoassay (IA)

Preparation: No fasting required. Stop biotin consumption at least 72 hours prior to the collection.

Test Results: 2-3 days. May take longer based on weather, holiday or lab delays.

Description

 

IgM anti-HAV antibodies indicate a recent infection with the hepatitis A virus. IgM anti-HAV antibodies can generally be detected in the blood as early as 2 weeks after the initial HAV infection. The antibodies will disappear from the blood 3 to 12 months after the infection. IgG anti-HAV antibodies indicate that you have had a hepatitis A viral infection. About 8 to 12 weeks after the initial infection with hepatitis A virus, IgG anti-HAV antibodies will appear and will remain in the blood for lifelong protection (immunity) against HAV.

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