A 皮肤、黏膜的颜色 B
口唇、指端发绀的程度 C
Hb和PaO<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20240405/11556723_0.gif">值 D
PaO<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20240405/11556723_0_1.gif">和SaO<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20240405/11556723_0_2.gif">值 E
意识状态