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单选题
呼吸衰竭定义指()
A

PaO2<6.65kPa(50mmHg)和PaCO2>6.65kPa(50mmHg)

B

PaO2<6.65kPa(50mmHg),或伴有PaCO2>6.65kPa(50mmHg)

C

PaO2<8.0kPa(60mmHg)和PaCO2>6.65kPa(50mmHg)

D

PaO2<8.0kPa(60mmHg)和PaCO2>8.0kPa(60mmHg)

E

PaO2<8.0kPa(60mmHg),或伴有PaCO2>6.65kPa(50mmHg)


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