问题
单项选择题
The nurse is assessing the puncture site of a client who has received a purified protein derivative test. Which finding indicates a need for further evaluation（）
A. 15-mm induration.
B. Reddened area.
C. 10-mm bruise.
D. Blister.
答案
参考答案：A
解析：
A 10-mm induration strongly suggests a positive response in this tuberculosis screening test--so, a 15-mm induration clearly requires further evaluation. The remaining options aren’t positive reactions to the test and require no further evaluation.