Glucose, 24-Hour Urinary Collection by Mass Concentration
This test measures the amount of glucose (sugar) excreted in your urine over a 24-hour period. It helps assess how well your body is managing blood sugar levels.
["Tracks urinary glucose loss, useful for diabetes management and kidney function evaluation."]
Key facts at a glance
- LOINC
- 1541-2
- Short code
- Glucose 5h p 100 g Glc PO Ur-mCnc
- Synonyms
- Glucose 5h p 100 g Glc PO Ur-mCnc
- 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 diabetes or are at risk for diabetes to check how much glucose is being filtered by your kidneys. It can also help monitor kidney function or detect conditions like diabetic nephropathy.
What to Expect Before the Test
You’ll need to collect all urine for 24 hours, starting and ending with a sample at the same time each day. Store samples in a refrigerator and return them to your lab on ice or frozen within 24 hours. Follow your provider’s specific instructions for timing and collection.
How the Test Works
The test measures glucose concentration in your urine using a specialized laboratory method. The collected urine is analyzed to determine the total amount of glucose excreted over the period.
Common Conditions Monitored
This test is particularly useful for diagnosing or monitoring diabetes-related kidney issues, such as diabetic nephropathy. It may also help evaluate kidney function in patients with other conditions affecting glucose metabolism.
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.
High urinary glucose levels may indicate impaired kidney function or uncontrolled diabetes. Low levels could suggest poor glucose metabolism or conditions like glycogen storage disorders. Results help guide treatment plans, especially for managing diabetes and kidney health.
Short name
24-Hour Urine Glucose
Frequently asked questions
How often should I collect urine for this test?
Can I drink fluids to dilute my urine before the test?
What if I miss collecting urine for part of the day?
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