Glucose, 24-Hour Urine Collection (Mass Concentration)
This test measures the total amount of glucose (sugar) 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 conditions like diabetes.
["A 24-hour urine glucose test helps track how much sugar your body removes through urine, useful for diabetes management."]
Key facts at a glance
- LOINC
- 25670-1
- Short code
- Glucose 30M p Glc Ur-mCnc
- Synonyms
- Glucose 30M 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 this test to check if your kidneys are properly filtering glucose, especially if you have diabetes or symptoms like frequent urination, excessive thirst, or unexplained weight loss. It can also help monitor long-term glucose control in people with diabetes.
How the Test Works
You’ll collect all urine for a full 24-hour period, typically starting after you urinate in the morning. The sample is then analyzed to measure the total glucose content. This method gives a clearer picture of your body’s glucose handling compared to single-point urine tests.
Sample Collection
To prepare, empty your bladder at the start of the collection period (morning). Use a clean container and collect every urine void for the next 24 hours. Label the container with your name, date, and time. Store the sample in a refrigerator until you return it to the lab.
What to Expect During the Test
There’s no special preparation needed beyond collecting urine over 24 hours. You’ll likely be given instructions to return the sample to the lab or clinic on the same day or within a few hours. Avoid certain medications or foods that might affect results if advised by your doctor.
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
What causes a high urine glucose reading?
What should I do if my urine glucose is high?
Can I drink fluids during the 24-hour urine collection?
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