What it is: A urine glucose test checks for glucose (sugar) in a urine sample, as part of a dipstick urinalysis.
Why it's ordered: Ordered as part of routine urinalysis or to help evaluate suspected diabetes or gestational diabetes, though blood glucose and HbA1c tests are the primary tools for diagnosis today.
What it detects: Glucose isn't normally present in urine. It appears when blood glucose exceeds roughly 180–200 mg/dL, overwhelming the kidneys' ability to reabsorb it — most often from uncontrolled diabetes, though certain rare kidney disorders and SGLT-2 diabetes medications can also cause it.
Collection & prep: A urine sample collected in a clean container, tested with a dipstick. No special preparation is required.
Results:
Positive – suggests elevated blood glucose; typically prompts blood glucose or HbA1c testing to evaluate for diabetes
Negative – no significant glucose detected, which is the normal finding
Possible complications of uncontrolled diabetes: Persistent glucose in the urine reflects poorly controlled blood sugar, which over time raises the risk of nerve, kidney, eye, and cardiovascular damage if not addressed.
Statements made in the Clinical Manual have not been evaluated by the FDA. The products mentioned are not intended to diagnose, treat, cure or prevent any disease.
