Positive Serologic Test for Hepatitis A Virus (HAV)

Differential Diagnosis

Hepatitis A virus infection

False-positive serologic test for hepatitis A

Suggested Additional Lab Testing

For acute hepatitis A:

• Elevated liver function tests for the aminotransferase

• Positive test for anti-HAV IgM

• Anti-HAV IgM levels usually remain elevated for 3-6 months.

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