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[主观题]
当血氧饱和度低于多少时,即可出现紫绀A.50%B.60%C.70%D.90%E.85%
当血氧饱和度低于多少时,即可出现紫绀
A.50%
B.60%
C.70%
D.90%
E.85%
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当血氧饱和度低于多少时,即可出现紫绀
A.50%
B.60%
C.70%
D.90%
E.85%
A.高铁血红蛋白血症
B.硫化血红蛋白血症
C.混合性紫绀
D.心性紫绀
E.肺性紫绀
A.20g/L
B.25g/L
C.15g/L
D.10g/L
E.5g/L
A.20~30ml
B.30~40ml
C.50ml
D.60ml
E.70ml
A.血氧饱和度达到50%时相应的PCO2
B.血氧饱和度达到50%时相应的PO2
C.血氧饱和度达到100%时相应的PCO2
D.血氧饱和度达到30%时相应的PCO2
E.血氧饱和度达到60%时相应的PO2
A.10%.
B.20%.
C.30%.
D.40%.
E.50%.
A.>70g/L
B.>65g/L
C.>60g/L
D.>55g/L
E.>50g/L
A、2.8mmol/L
B、3.9mmol/L
C、7.8mmol/L
D、8.8mmol/L
E、9.0mmol/L