Glucose, 24-Hour Urinary Collection (Total)
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 handling glucose metabolism.
["This test helps identify if your body is losing too much glucose through urine, which may indicate diabetes or other metabolic conditions."]
Key facts at a glance
- LOINC
- 16905-2
- Short code
- Glucose sp2 p chal Ur Ql
- Synonyms
- Glucose sp2 p chal Ur Ql
- 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 Is This Test Done?
Your doctor may order this test if they suspect you have diabetes or another condition affecting how your body processes glucose. It can 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, starting from one point in time (often midnight or midnight the next day) and ending at the same time the next day. Use a clean container to store the urine, and keep it refrigerated if possible. Make sure to note the exact time each urine sample is collected.
How the Test Is Performed
The test involves collecting all urine produced in a 24-hour period. The urine is combined and sent to a lab for analysis. The lab measures the total glucose content in the sample.
What the Results Mean
Results are typically reported as the total amount of glucose excreted in grams or milligrams over the 24-hour period. High levels may suggest diabetes or other metabolic issues, while normal levels indicate typical 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.
Elevated urinary glucose can indicate uncontrolled diabetes, where the body fails to regulate blood sugar properly. It may also be seen in conditions like renal glucose reabsorption defects. This test helps monitor glucose loss and assess metabolic health over time.
Short name
24-Hour Urine Glucose
Frequently asked questions
How long does it take to get my results?
Can I eat or drink normally before this test?
What if I miss any urine collection during the 24-hour period?
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