A 20-year-old female is applying for nursing school and is required to be tested for immunity against several illnesses. Testing that looks at which of the following would be the best to deter-mine immunity?
a. Culture and sensitivity
b. Agglutination
c. Precipitation
d. Titer
ANS: D
The amount of antibody in a serum sample is referred to as the titer; a higher titer indicates more antibodies. Culture determines the type of organism that causes an infection, and sensitivity identifies the antibody it is sensitive to. The terms agglutination and precipitation are not used to identify a test to determine immunity.
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