A 动脉血氧含量(CaO<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20260127/11554897_0.gif">)低于20ml% B
PaO<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20260127/11554897_0_1.gif">低于60mmHg C
pH<7.35 D
PaCO<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20260127/11554897_0_2.gif">高于50mmHg E
动脉血氧饱和度(SaO<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20260127/11554897_0_3.gif">)低于90%