肾糖阈的正常值约为A.80~100mg/100ml(原尿) B.80~200mg/100ml C.160~180mg/100ml(血液) D.160~180mg

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问题 肾糖阈的正常值约为

选项 A.80~100mg/100ml(原尿)
B.80~200mg/100ml
C.160~180mg/100ml(血液)
D.160~180mg/100ml(原尿)
E.120~160mg/100ml(血液)

答案C

解析血液中葡萄糖浓度超过160~180mg/100ml(10~12mmol/L)后,有一部分肾小管细胞对葡萄糖的吸收已达极限,尿中开始出现葡萄糖,此时的血糖浓度称为肾糖阈。
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