Glucose, 24-Hour Urinary Collection (Total)
This test measures the total amount of glucose found in your urine over a 24-hour period. It helps assess how much sugar your body is excreting, which can be important for diagnosing or monitoring conditions like diabetes.
["A 24-hour urine glucose test helps track how well your body manages blood sugar levels over time."]
Key facts at a glance
- LOINC
- 32321-2
- Short code
- Glucose 4h p 75 g Glc PO SerPl-sCnc
- Synonyms
- Glucose 4h p 75 g Glc PO SerPl-sCnc
- Category
- glucose
- Sample
- serum
- Container
- Red-top tube (SST)
- 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
- 5 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
- Hemolysis max
- 500
- Lipemia max
- 1000
- Icterus max
- 500
- TAT
- 4–24 hours
- Order
- routine
Why This Test Is Done
Your healthcare provider may order this test if you have symptoms of diabetes, such as frequent urination, excessive thirst, or unexplained weight loss. It can also be used to monitor diabetes management, detect kidney issues, or check for conditions like gestational diabetes.
What to Expect Before the Test
You’ll need to collect all urine for a full 24-hour period, typically starting after midnight one day and ending the same time the next day. Drink plenty of water to help your kidneys pass urine, but avoid sugary drinks or foods that might affect results. Follow your provider’s instructions carefully.
During the Test
You’ll provide a single urine sample at the end of the 24-hour period. The sample is sent to a lab for analysis. No special preparation is needed beyond collecting urine as directed.
What the Results Mean
Higher-than-normal results may indicate diabetes, kidney problems, or other metabolic conditions. Lower-than-normal results could suggest dehydration or certain hormonal imbalances. Your provider will interpret results in the context of your overall health and medical history.
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 levels can signal uncontrolled diabetes, where the body fails to regulate blood sugar properly. Persistently high levels may also indicate kidney issues or other metabolic disorders. This test helps doctors diagnose diabetes, assess treatment effectiveness, or investigate unexplained symptoms.
Frequently asked questions
How often should I collect urine for this test?
Can I eat or drink anything before or during the test?
What if I miss any urine during the collection 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