单项选择题

患者，女性，54岁，慢性呼吸衰竭。血气分析PaO250mmHg，PaCO270mmHg，为患者吸氧，宜选择的浓度为 A.
18%～24% B.
25%～29% C.
30%～36% D.
36%～42% E.
46%～53%

你可能感兴趣的试题

单项选择题

The movement of the majority carriers because of the difference of concentration is called ( ).
A、diffusion motion
B、drift motion
C、doped
D、none of the above

题3-1-1：

答案：正确