赞题库-背景图
单项选择题

Ⅱ型呼吸衰竭的诊断标准是

A.PaO 2 <8.0kPa(60mmHg),PaC 2 >5.7kPa(20mmHg)
B.Pa 2 <9.0kPa(70mmHg),PaC 2 >6.7kPa(50mmHg)
C.Pa 2 <10.0kPa(80mmHg),PaC 2 >5.3kPa(40mmHg)
D.Pa 2 <8.0kPa(60mmHg),PaC 2 >6.7kPa(50mmHg)
E.Pa 2 <12.0kPa(90mmHg),PaC 2 >4.0kPa(30mmHg)