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[单选题]
大咯血的咯血量()
A.>500ml/24h或一次咯血>100mL
B.100~500ml/24h
C.<100ml/24h
查看答案
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A.>500ml/24h或一次咯血>100mL
B.100~500ml/24h
C.<100ml/24h
A.①<100ml②100-500ml③>500ml
B.①<50ml②>100ml③>400ml
C.①>100ml②100-500ml③>800ml
D.①<200ml②>500ml③>1000ml