Description
Why It’s Done:
The HAV IgM test is typically performed to:
• Diagnose an acute Hepatitis A infection, especially in individuals presenting with symptoms such as jaundice, fatigue, nausea, or abdominal pain.
• Confirm recent exposure to Hepatitis A, especially in people who have had contact with someone who has Hepatitis A or have traveled to areas where the virus is common.
• Distinguish between acute and past Hepatitis A infection by measuring the presence of IgM antibodies (which are absent in past or resolved infections).
• Monitor outbreaks of Hepatitis A in communities or vulnerable populations.
Preparation:
Preparation for the HAV Antibody – IgM test is generally simple:
1. Fasting:
o Fasting is not required for this test.
2. Medications:
o Inform your healthcare provider of any medications you are taking, particularly those that affect the liver or immune system.
3. Hydration:
o It’s a good idea to stay well-hydrated before the test, as this can make blood collection easier.
4. Procedure:
o A blood sample will be drawn from a vein in your arm. In some cases, a finger prick may be used.


