Glucose (24-hour urinary collection)
This test measures the total amount of glucose (sugar) excreted in your urine over a full day. It helps assess how well your body is managing blood sugar levels, especially in conditions like diabetes.
["Assesses long-term blood sugar control through urine output over 24 hours."]
Key facts at a glance
- LOINC
- 25678-4
- Short code
- Glucose 1.5h p Glc Ur-mCnc
- Synonyms
- Glucose 1.5h p Glc 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
Doctors may order a 24-hour urine glucose test to evaluate how your kidneys filter glucose and to monitor diabetes management. It can help identify patterns in glucose excretion that standard blood tests might miss.
What to Expect Before the Test
You’ll need to collect all urine for 24 hours, starting after you wake up. Store the urine in a refrigerator until testing. Follow your doctor’s instructions carefully to ensure accurate results.
How the Test Works
Your urine is collected and analyzed for glucose content. The test measures the total glucose excreted, which can reflect how much glucose your body is processing and eliminating.
What the Results Mean
Higher-than-normal results may indicate poor blood sugar control, kidney issues, or conditions like diabetes. Lower-than-normal results could suggest your body is absorbing glucose too well, though this is less common.
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.
Clinical Significance: This test provides insight into chronic glucose metabolism, helping diagnose or monitor conditions like diabetes, kidney function, or metabolic disorders. It complements blood glucose monitoring by offering a broader picture of daily glucose dynamics.
Short name
24-Hour Urine Glucose
Frequently asked questions
Why might my doctor recommend this test?
What does a high urine glucose result mean?
Can I drink water 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