问题
单项选择题
免疫法隐血试验适于检验的疾病是()。
A.消化性溃疡
B.结肠息肉
C.门静脉高压
D.急慢性胃炎
E.胃癌
答案
参考答案:B
解析:
消化道出血后(特别是上消化道出血),血红蛋白在胃肠道中被消化酶及细菌作用后分解,使血红蛋白免疫原性减弱、消失或改变而出现假阴性,故免疫法主要用于下消化道出血检验。上述选项中结肠息肉属于下消化道出血,其他选项均属于上消化道出血。
免疫法隐血试验适于检验的疾病是()。
A.消化性溃疡
B.结肠息肉
C.门静脉高压
D.急慢性胃炎
E.胃癌
参考答案:B
解析:
消化道出血后(特别是上消化道出血),血红蛋白在胃肠道中被消化酶及细菌作用后分解,使血红蛋白免疫原性减弱、消失或改变而出现假阴性,故免疫法主要用于下消化道出血检验。上述选项中结肠息肉属于下消化道出血,其他选项均属于上消化道出血。
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