24-Hour Urine Glucose Rate (Total Glucose Excretion Rate)
This test measures how much glucose your body excretes in urine over a full day. It helps assess how well your kidneys filter glucose and can indicate conditions like diabetes or kidney function.
["This test helps track how much glucose passes into your urine daily, useful for diabetes management and kidney health."]
Key facts at a glance
- LOINC
- 2351-5
- Short code
- Glucose 24h Ur-mRate
- Synonyms
- Glucose 24h Ur-mRate
- 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
Doctors may order a 24-hour urine glucose test to evaluate how your kidneys handle glucose, especially if you have symptoms like frequent urination, excessive thirst, or signs of diabetes. It can also help monitor kidney function or diagnose conditions like glycosuria (glucose in urine) that may not show up on standard blood tests alone.
How the Test Works
You’ll collect all your urine over a 24-hour period in a special container. The collected sample is then analyzed to measure the total glucose excreted, typically using an immunoassay or enzymatic method to detect glucose levels.
Sample Collection
To prepare, empty your bladder before starting. Collect every drop of urine for the full 24 hours, including at night. Store samples in a cool place and return them to the lab on the same day or refrigerate until testing. Follow your healthcare provider’s specific instructions to avoid contamination or errors.
What to Expect During Testing
No special preparation is needed beyond collecting urine over 24 hours. Results are compared to your body’s typical glucose excretion patterns to identify any abnormalities.
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.
◆Associated findings1
Short name
24-hour urine glucose
Frequently asked questions
A higher-than-expected glucose excretion may suggest diabetes, kidney issues, or other metabolic disorders. Elevated levels could indicate poor kidney function or uncontrolled blood sugar. Low excretion might raise concerns about insulin resistance or other metabolic conditions.
A high result may indicate your body is excreting more glucose than usual in urine, which can happen with diabetes, kidney problems, or certain medications. Your doctor will discuss this with you and may recommend further testing or adjustments to your treatment plan.
A low result may suggest your kidneys are effectively filtering glucose, but it could also indicate insulin resistance or other metabolic factors. Your doctor will review your overall health and test results to understand the cause.
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