【内科】诊断呼吸衰竭的血气标准是
PaO2<65mmHg和(或)伴有PaCO2>55mmHg
PaO2<50mmHg和(或)伴有PaCO2>60mmHg
PaO2<60mmHg和(或)伴有PaCO2>5mmHg
PaO2<60mmHg和(或)伴有PaCO2>50mmHg
PaO2<65mmHg和(或)伴有PaCO2>50mmHg
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