Answer to Question 1
Correct Answer: 1
The cell-mediated response has memory, and subsequent exposures to an antigen result in a more rapid and effective inflammatory response. This memory provides the basis for skin testing. A patient previously exposed to tuberculosis develops a more pronounced inflammatory response when minute amounts are injected under the skin. The other choices are characteristics of an antibody-mediated immune response.
Answer to Question 2
Correct Answer: 1
In laboratory tests, the WBC count indicates the total number of circulating leukocytes. The differential identifies the total number of circulating neutrophils, eosinophils, and basophils.
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