问题
单项选择题
The nurse is assessing a client with heart failure. The breath sounds commonly auscultated in clients with heart failure are（）
A. tracheal.
B. fine crackles.
C. coarse crackles.
D. friction rubs.
答案
参考答案：B
解析：
Fine crackles are caused by fluid in the alveoli and commonly occur in clients with heart failure. Tracheal breath sounds are auscultated over the trachea. Coarse crackles are caused by secretion accumulation in the airways. Friction rubs occur with pleural inflammation.