Which test best determines hepatitis B status in prenatal care?

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Multiple Choice

Which test best determines hepatitis B status in prenatal care?

Explanation:
In prenatal care, the goal is to identify active hepatitis B infection to prevent transmission to the newborn. The hepatitis B surface antigen is the best test for this because its presence means the mother is currently infected and potentially contagious. A positive surface antigen prompts neonatal prophylaxis with the hepatitis B vaccine at birth and, depending on circumstances, hepatitis B immune globulin to greatly reduce the risk of transmission. If the test is negative, the mother is not currently infected, and the newborn does not require this specific prophylaxis. The other tests screen for entirely different conditions (HIV, syphilis) or pregnancy status (hCG) and do not inform hepatitis B infection.

In prenatal care, the goal is to identify active hepatitis B infection to prevent transmission to the newborn. The hepatitis B surface antigen is the best test for this because its presence means the mother is currently infected and potentially contagious. A positive surface antigen prompts neonatal prophylaxis with the hepatitis B vaccine at birth and, depending on circumstances, hepatitis B immune globulin to greatly reduce the risk of transmission. If the test is negative, the mother is not currently infected, and the newborn does not require this specific prophylaxis. The other tests screen for entirely different conditions (HIV, syphilis) or pregnancy status (hCG) and do not inform hepatitis B infection.

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