Urine Glucose
Only patients who are unable to use blood glucose meters should use urine glucose tests. Testing urine for glucose, which was once the best way for patients to manage their diabetes, has mostly now been replaced by self-monitoring of blood glucose. There are three major drawbacks of urine glucose testing compared to blood testing. First, urine glucose testing will not tell you about low (below 180 mg/dl) glucose levels, since at lower levels glucose does not enter your urine. Second, urine glucose readings change when the volume of your urine changes. Third, your urine glucose level is more of an average value than your blood glucose level. There are several dipstick tests available on the market.
For more information about measuring glucose in urine, use the following link:
Medlineplus Healthline Health Information, Medical Encyclopedia, Glucose-Urine
http://www.nlm.nih.gov/medlineplus/ency/article/003581.htm