Glucose, 24-Hour Urinary Excretion (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, especially in conditions like diabetes.
["This test helps track how your body handles sugar over time, useful for diabetes management."]
Key facts at a glance
- LOINC
- 61153-3
- Short code
- Glucose BS DiafP-mCnc
- Synonyms
- Glucose BS DiafP-mCnc
- 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 Is This Test Done?
Your healthcare provider may order this test to evaluate how well your kidneys are filtering glucose from your blood. It can also help monitor long-term glucose control, particularly in people with diabetes, to check for signs of excessive sugar in urine that might indicate poor blood sugar management or kidney issues.
What to Expect Before the Test
You’ll need to collect all urine for a full 24-hour period, typically starting after you urinate in the morning of day 1 and ending with your first urine of the next morning. Drink plenty of fluids to help your urine flow normally. Avoid special diets unless instructed by your provider.
What Happens During the Test?
No special preparation is needed beyond collecting urine samples at consistent intervals. Your samples will be sent to a lab for analysis to determine the total glucose excreted in your urine over the day.
What Are the Results Meaning?
Higher than expected results may suggest poor glucose control, kidney problems, or conditions like diabetes that aren’t being managed well. Lower results might indicate normal glucose handling or conditions like diabetes that are well-controlled. Your provider will interpret results in the context of your overall health.
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 is particularly useful for diagnosing or monitoring conditions like diabetes mellitus, where glucose levels in urine can reflect metabolic status. Elevated urinary glucose may also indicate kidney dysfunction or other metabolic disorders. It helps guide treatment plans and assess long-term outcomes.
Short name
24-Hour Urine Glucose
Frequently asked questions
Why might my doctor ask for this test?
What do my results mean if they are high?
Can I eat or drink anything before this 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