题目内容
关于出血置的判断，不正确的是
2021-12-09
A.大便潜血阳性，出血量至少大于5ml
B.出现呕血，提示胃内积血量大于250ml
C.柏油样便，出血量大于50ml
D.大便潜血阴性提示无消化道出血
E.出现全身症状，提示出血量大于400ml
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