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Glucose, 24-Hour Urinary Excretion (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.

Quick summary

["Assesses how much sugar your body naturally passes in urine, useful for monitoring diabetes-related kidney function."]

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

Key facts at a glance

LOINC
49052-4
Short code
GA (days)
Synonyms
GA (days)
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
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 Matters

Your doctor may order this test to check how well your kidneys are handling glucose, especially if you have diabetes or kidney concerns. It helps evaluate long-term sugar control and kidney function together.

What to Expect Before the Test

You’ll need to collect all urine for 24 hours—typically from one morning to the next morning. Drink plenty of water but avoid sugary drinks. Your healthcare provider will provide clear instructions on how to properly collect and store the sample.

How the Test Works

The collected urine is analyzed to determine the total glucose present. This test helps identify patterns in glucose excretion that may indicate kidney function or metabolic issues.

Possible Results and Interpretation

Results are compared to your baseline or clinical needs rather than a single reference range. High levels may suggest kidney problems or uncontrolled diabetes, while low levels might indicate insufficient glucose in urine (e.g., due to reabsorption).

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

24-Hour Urine Glucose

Frequently asked questions

How often should I expect this test?
This test is typically ordered periodically if you have diabetes, kidney disease, or other conditions affecting glucose metabolism. Your doctor will determine the frequency based on your health needs.
Can I eat or drink anything special before this test?
No special diet is required, but avoid sugary beverages or foods that could skew results. Follow your healthcare provider’s instructions for proper urine collection.
What if I miss any urine during the 24-hour period?
If you miss urine, you’ll need to restart the collection from the next morning. Some labs may adjust the analysis if partial data is provided, but accuracy depends on complete collection.
  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