B 糖检查用要采早晨空腹的或早饭后两小时的尿,早晨空腹时尿中是最不易出有糖质的,因此这时间的尿若是糖阳性成绩的话就可知道是相当重症的糖尿病了。相反的,早饭后两小时的当儿是糖尿最易出现或尿出糖质最多的时间,由之这时候的尿若为糖阴性成绩的话,也就 B Sugar examination should use urine taken in the morning of fasting or two hours after breakfast. In the morning fasting, urine is the least likely to have carbohydrates. Therefore, if the urine of this time is a sugar-positive result, it can be known that it is a very serious type of diabetes. . On the contrary, when the two hours after breakfast is the time when the diarrhea is most likely to occur or the urine yields the most glucose, then if the urine at this time is a sugar-negative result, then