下列关于足月新生儿呼吸系统特点的知识，正确的是（）

A.胎儿肺内的肺液，1／3由肺间质内的毛细血管和淋巴管吸收

B.新生儿出生第1小时内，呼吸频率每分钟50～60次

C.新生儿出生2小时后，呼吸频率降至每分钟60次

D.出生2周内呼吸往往波动，属新生儿的正常现象

E.胎儿肺液大部分由口、鼻排出

A client who has been using crutches at home for t week reports that he is having trouble using the crutches because his armpits hurt and his fingers tingle. What would be the nurse’s most appropriate response（）

A. "You need to do more arm exercises. It sounds like your muscles need strengthening. "

B. "That’s normal. As you adjust to the crutches, the discomfort will diminish. "

C. "Be sure to take your pain medication before ambulating. That will help your discomfort. "

D. "Let me watch you ambulate. Your crutches or technique may need some adjustment. "