Serology: Which test detects active hepatitis B infection?

Prepare for the VisionFirst CEBT Test. Utilize flashcards and multiple-choice quizzes, each offering hints and detailed explanations for optimized learning. Excel in your exam!

Multiple Choice

Serology: Which test detects active hepatitis B infection?

Explanation:
Active hepatitis B infection is identified by the presence of the hepatitis B surface antigen in the blood. This antigen appears early after infection and stays present during active viral replication, indicating the person is currently infected and potentially contagious. Tests for other viruses—such as hepatitis C antibodies, HIV antibodies, or syphilis serology—do not indicate HBV infection, so they’re not used to detect active hepatitis B. In short, detecting HBsAg confirms an active HBV infection.

Active hepatitis B infection is identified by the presence of the hepatitis B surface antigen in the blood. This antigen appears early after infection and stays present during active viral replication, indicating the person is currently infected and potentially contagious. Tests for other viruses—such as hepatitis C antibodies, HIV antibodies, or syphilis serology—do not indicate HBV infection, so they’re not used to detect active hepatitis B. In short, detecting HBsAg confirms an active HBV infection.

More practice questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy