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Glucose, 24-Hour Urinary Total

Published: August 9, 2026Updated: August 16, 2026

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, which can be important for managing conditions like diabetes.

Quick summary

["Helps track urinary sugar loss, useful for diabetes management and kidney function evaluation."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
33072-0
Short code
GA from AC.ASUM 2000
Synonyms
GA from AC.ASUM 2000
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
us-estimated-from-ac-asum
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 Might Be Ordered

Your healthcare provider may order this test to monitor how your kidneys filter glucose from your blood and urine. It’s particularly useful if you have diabetes, kidney disease, or other conditions that affect glucose metabolism.

What to Expect Before the Test

You’ll typically collect all urine for 24 hours, starting after you wake up and ending just before you wake up the next day. Store the urine in a clean container and bring it to your lab visit. Drink plenty of water to help your kidneys produce urine.

What Happens During the Test

No special preparation is needed beyond collecting urine over 24 hours. The lab analyzes the sample to determine the total glucose content.

What the Results Mean

Higher than expected levels may indicate diabetes, kidney issues, or other metabolic problems. Lower levels might suggest dehydration or certain medications. Your provider will interpret results in the context of your overall health.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

24-Hour Urine Glucose

Frequently asked questions

How often should I expect this test?
This test is usually ordered periodically if you have diabetes, kidney disease, or other conditions that require monitoring of glucose metabolism. Your provider will determine the frequency based on your health needs.
What can affect my test results?
Factors like dehydration, certain medications (e.g., diuretics), or kidney problems can influence results. Also, stress, illness, or changes in diet may temporarily affect urinary glucose levels.
Do I need to fast before this test?
No fasting is required for this test. However, drink plenty of fluids to ensure adequate urine production throughout the 24-hour period.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

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.

Medical Disclaimer

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