The nursing student questions the faculty member regarding the need to obtain a hepatitis B titer. The faculty member is correct in saying that the purpose of a titer is to measure which component of immunity?
1. The degree of risk for future infections
2. The amount of vaccine present in the bloodstream
3. The amount of antibodies in the bloodstream
4. The amount of antigen in the bloodstream
Correct Answer: 3
Rationale 1: Titers do not estimate the degree of infection.
Rationale 2: It is not possible to measure the amount of vaccine present in the bloodstream.
Rationale 3: Titers measure the amount of antibodies.
Rationale 4: The amount of antigen is not measured in titers.
Global Rationale: The effectiveness of most vaccines can be assessed by measuring the amount of antibodies produced after the vaccine has been administered, a quantity called titer. Titers do not measure degree of risk for future infection, amount of vaccine in the bloodstream, or the amount of antigen in the bloodstream.
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It is OK for NCAA athletes to use dietary supplements containing ephedrine
Indicate whether the statement is true or false