Wednesday, January 14, 2009

In normal people, glomerular filtrate also contain a certain amount of glucose, but the vast majority were tubular reabsorption into the bloodstream,

In normal people, glomerular filtrate also contain a certain amount of glucose, but the vast majority were tubular reabsorption into the bloodstream, so normal urine containing only a trace amount of glucose, general wellness checks and measurements do not come out, so urine sugar Qualitative is negative. Due to the ability of renal tubular absorption of glucose there is a limit. When blood sugar more than the limit, there are parts of glomerular filtrate glucose can not be absorbed, and produced with the urine from diabetes.

Normal blood sugar more than 8.9 ~ 10.0mmol / L, the urine can be found, the blood glucose level is referred to as renal glucose threshold that renal glucose threshold. In the elderly and blood glucose in patients with diabetic nephropathy is often more than 10.0mmol / L, or 11.1 ~ 16.7mmol / L, when it appears diabetes, which is due to increased renal glucose threshold, on the contrary during pregnancy or in patients with renal glucosuria, blood glucose less than 8.9mmol / L, there is diabetes, which is lower renal glucose threshold.

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