关于检验的灵敏度和特异度，以下说法正确的是（） A.特异度是指受检者中有病而获阳性结

To obtain a good monitor tracing on a client in labor, the mother lies on her back. Suddenly, she complains of feeling light-headed and becomes diaphoretic. Which of the following should be the nurse’s first action

A. Reposition the client to her left side.
B. Immediately take the client’s blood pressure and call the physician.
C. Start oxygen at 6 L via nasal cannula.
D. Increase the IV fluids to correct the client’s dehydration.

下列是临床上常用的情感稳定剂的为（）

A.BZD

B.TCA

C.MAOI

D.碳酸锂

E.米氮平

某男，20岁，头颈及胸腹部烧伤，其烧伤面积是()。

A．18%

B．22%

C．25%

D．30%

E．35%

电压波动以电压变化期间电压最大值与电压额定值之差相对于电压额定值的百分数来表示

新风机组、监控点配置是（按空气部分）（）

A.新风温度、湿度

B.回风温度、湿度

C.空气质量

D.空气压力