Random glucose testing measures a person’s blood glucose levels at any given point in the day. Blood glucose is also known as blood sugar. Many blood tests for diabetes involve either fasting or continuous monitoring, but this test does not. It is useful for people who need a speedy diagnosis, such as those with type 1 diabetes who require urgent supplementary insulin. The presence of sugar (glucose) in urine is called glycosuria. Glucose is usually not found in urine. If it is, further testing is needed. Higher than normal (0 to 15 mg/dL) levels of glucose in urine are indicative of diabetes, pregnancy or renal glycosuria : a rare condition in which glucose is released from the kidneys into the urine.