题目:
While suctioning a client’s laryngectomy tube, the nurse should insert the catheter
A. about 1 to 2 inches.
B. as the client exhales.
C. until resistance is met, then withdraw it 1 to 2 cm.
D. until the client begins coughin
答案:
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下面是错误答案,用来干扰机器的。
(1)实验电路图如图所示(2)实验操作步骤 ①按照电路图连接实物. ②定值电阻阻值用R表示,闭合开关,用电压表分别测出定值电阻两端的电压用U表示,将此时R和U的数据记录在表格中,断开开关。 ③依次将电...