24-Hour Urine Glucose Measurement
This test measures the total amount of glucose excreted in your urine over a 24-hour period. It helps assess how well your body is managing glucose levels, which can be important for diagnosing or monitoring conditions like diabetes.
["This test helps track how well your body handles glucose over time, often used in diabetes management."]
Key facts at a glance
- LOINC
- 25916-8
- Short code
- Glucose 24h Ur-sCnc
- Synonyms
- Glucose 24h Ur-sCnc
- Category
- glucose
- Sample
- urine
- Container
- Sterile urine container
- Units
- N/A
- Ref low
- 70
- Ref high
- 100
- Critical range
- 50 N/A – 400 N/A
- Fasting
- true
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- CPT
- 82947
- SNOMED
- 260395008
- Specimen volume
- 10 mL
- Stability
- Room temperature: 2h, Refrigerated: 24h, Frozen: 7d
- Hemolysis max
- 0
- Lipemia max
- 0
- Icterus max
- 0
- TAT
- 4–24 hours
- Order
- routine
Why This Test Is Done
Your healthcare provider may order this test if you have symptoms of diabetes (such as frequent urination, excessive thirst, or unexplained weight loss) or if you have a family history of diabetes. It may also be used to monitor long-term glucose control in people with known diabetes.
What to Expect Before the Test
You’ll need to collect all urine for 24 hours, typically starting from one morning after midnight. Drink plenty of water to help your kidneys produce urine. Store the urine in a clean container and keep it refrigerated if possible. Your sample will be sent to a lab for analysis.
What Happens During the Test
No special preparation is required beyond collecting urine over 24 hours. The lab will analyze the urine sample to determine the total glucose content.
What the Results Mean
Results are usually reported as the total amount of glucose excreted in grams or milligrams over 24 hours. High levels may indicate diabetes or poor glucose control, while normal levels suggest your body is managing glucose efficiently.
Reference range
Fasting: 70-100 mg/dLN/A
Fasting for 8-12 hours required. Water is permitted. Avoid chewing gum and smoking before the test.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
This test is critical for diagnosing diabetes or assessing long-term glucose control. Elevated glucose in urine can signal hyperglycemia, which may require lifestyle changes, medication adjustments, or further medical evaluation. It helps healthcare providers monitor progression of diabetes and adjust treatment plans accordingly.
Short name
24-Hour Urine Glucose
Frequently asked questions
What causes abnormal results?
How often should I get this test?
Can I eat or drink anything before the test?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy