问题
单项选择题
The nurse is teaching a group of women to perform breast self-examination. The nurse should explain that the purpose of performing the examination is to discover （）.
A．cancerous lumps.
B．areas of thickness or fullness.
C．changes from previous self-examinations.
D．fibrocystic masses.
答案
参考答案：C
解析：
Women are instructed to examine themselves to discover changes that have occurred in the breast. Only a physician can diagnose lumps that are cancerous, areas of thickness or fullness that signal the presence of a malignancy, or masses that are fibrocystic as opposed to malignant.
