COPD急性加重期控制性氧疗应达到的满意的氧合水平是
A.
PaO>60mmHg,SaO>90%
B.
PaO>65mmHg,SaO>95%
C.
PaO>45mmHg,SaO>75%
D.
PaO>50mmHg,SaO>80%
E.
PaO>55mmHg,SaO>85%
正确答案是A