Understanding Lab Tests for Hepatitis A
Written by Private MD Labs Medical Writing Team • Last Updated: September 8, 2025
Hepatitis A is a viral infection that affects the liver, causing inflammation and potentially serious symptoms including jaundice, fatigue, and abdominal pain. Since symptoms can overlap with other conditions, specific blood tests are essential for accurate diagnosis and confirmation of Hepatitis A virus infection.
Recommended Test
Hepatitis A IgM Antibody
This test detects IgM antibodies specific to Hepatitis A virus, which indicate a recent or acute infection. These antibodies are produced by your immune system in response to the virus and can be detected as early as 2 weeks after exposure, making this test crucial for confirming a current Hepatitis A infection.
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Diagnosing Hepatitis A
Blood tests are the primary method for diagnosing Hepatitis A infection. These tests detect specific antibodies that your immune system produces in response to the virus, providing clear evidence of infection and helping healthcare providers determine the appropriate treatment and monitoring plan.
Understanding Your Test Results
A positive Hepatitis A IgM antibody test confirms that you have a recent infection with the Hepatitis A virus. This information is vital for your healthcare provider to recommend appropriate care, monitor your recovery, and take necessary precautions to prevent transmission to others.
Important Considerations
The information here is for educational purposes only and is not a substitute for professional medical advice. Always consult with a healthcare provider for diagnosis and treatment.
