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Medicine

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Liver & GIT

Question
14 out of 14
 

A nursing student has just completed her hepatitis B vaccine series. On reviewing her laboratory studies (assuming she has no prior exposure to hepatitis B), you

expect



A Positive test for hepatitis B surface antigen

B Antibody against hepatitis B surface antigen (anti-HBS) alone

C Antibody against hepatitis core antigen (anti-HBC)

D Antibody against both surface and core antigen

Ans. B Antibody against hepatitis B surface antigen (anti-HBS) alone

The current hepatitis B vaccine is genetically engineered to consist of hepatitis B surface antigen particles. Therefore, only antibody to surface antigen will be detected after vaccination. Since the patient has had no exposure to hepatitis B, she should be surface antigen–negative; surface antigen positivity means active disease, either acute or chronic. Patients who have recovered from hepatitis B have antibodies both to HBs and HBc.

Liver & GIT Flashcard List

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