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[单选题]
OB即大便隐血阳性提示每日出血量至少()ml
A.50ml
B.5-10ml
C.100ml
D.200ml
![](https://static.youtibao.com/asksite/comm/h5/images/m_q_a.png)
B、5-10ml
![](https://static.youtibao.com/asksite/comm/h5/images/solist_ts.png)
A.50ml
B.5-10ml
C.100ml
D.200ml
B、5-10ml
消化性溃疡活动期大便隐血试验阳性,提示每日出血量为()。
A.<1 mL
B.1—3mL
C.4—5mL
D.>5mL
E.50mL
A.50ml ,10ml以上
B.30~40ml,5ml以上
C.50ml ,5ml以上
D.100ml,5ml以上
A.清流质
B.禁食
C.温热流质
D.冷流质
A.少数胃溃疡可发生癌变,十二指肠溃疡则不会发生
B.胃溃疡癌变发生在溃疡边缘
C.癌变率在5%左右
D.长期慢性溃疡病史,年龄在45岁以上、溃疡顽固不愈者应提高警惕
E.大便隐血试验持续阳性提示癌变可能