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[主观题]
出现黑便时,消化道出血量至少应超过A.10mlB.30mlC.50mlD.80mlE.100ml
出现黑便时,消化道出血量至少应超过
A.10ml
B.30ml
C.50ml
D.80ml
E.100ml
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出现黑便时,消化道出血量至少应超过
A.10ml
B.30ml
C.50ml
D.80ml
E.100ml
A.出现黑便表明出血量在50~70ml以上
B.胃内积血超过100ml时,可引起呕血
C.一次出血量在400ml以下时,一般不引起全身症状
D.中等量出血指出血量在500~1000ml