Positive urine glucose needs to be determined by further blood glucose testing.
Because positive urine glucose is related to the renal glucose threshold, it can also be easily interfered with by other factors, such as eating fruit afterwards may make the urine glucose false positive, and some medications can interfere with the urine glucose test. Urine sugar cannot accurately reflect blood glucose value, some people with positive urine sugar cannot be diagnosed with diabetes, but people with negative urine sugar cannot be completely excluded from diabetes either. The urine glucose test should only be used as a reference.
To make a definitive diagnosis of diabetes, venous blood is usually drawn for blood glucose, and five blood glucose tests can be done to rule out diabetes early. 5 blood glucose measurements are drawn at the time of fasting blood glucose, half an hour after a meal, one hour after a meal, two hours after a meal, and three hours after a meal. When doing the 5 blood glucose measurements, you can choose to take 75 grams of glucose orally or eat a bun meal. The patient should be informed of the specific time to take the oral glucose or eat the bun meal and the specific timing method.
A glycated hemoglobin measurement can also be done to find out the blood glucose level over the last 2 to 3 months. Only after the diagnosis is clear can the correct treatment be made.