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Glucose, 24-Hour Urinary Collection (Mass Concentration)

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

This test measures the amount of glucose (sugar) excreted in your urine over a full day. It helps assess how well your body is managing blood sugar levels.

Quick summary

["A 24-hour urine glucose test helps track long-term sugar control beyond just a single blood test."]

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

Key facts at a glance

LOINC
47911-3
Short code
GH 30M p Gc SerPl-aCnc
Synonyms
GH 30M p Gc SerPl-aCnc
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 Is Done

Your doctor may order this test if they suspect conditions like diabetes, kidney issues, or metabolic disorders that affect how your body handles glucose. It can also help monitor treatment effectiveness for conditions like diabetes or kidney disease.

What to Expect Before the Test

You’ll need to collect all urine for a full 24-hour period, typically starting after you wake up and ending the next morning. Drink plenty of fluids but avoid sugary drinks or foods that could affect results. Follow your doctor’s instructions carefully to ensure accurate results.

How the Test Works

The collected urine is analyzed to measure the total glucose present over the day. This is done using a specialized method that detects glucose in the urine sample, often through a chemical or automated process.

What the Results Mean

Higher-than-normal results may indicate conditions like diabetes, where your body struggles to control blood sugar. Lower-than-normal results might suggest issues like malabsorption or certain metabolic disorders. Your doctor will interpret results in the context of your overall health.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Frequently asked questions

What does a high urinary glucose result mean?
A high urinary glucose result often suggests your body isn’t effectively managing blood sugar, which can be a sign of diabetes or other metabolic issues. It may also indicate kidney problems that are filtering glucose improperly. Your doctor will discuss this with you during your follow-up.
How often should I get this test?
Your doctor will determine how often you need this test based on your health condition, treatment plan, and overall needs. Regular monitoring may be recommended if you have diabetes, kidney disease, or other conditions affecting glucose metabolism.
Can I eat or drink anything before the test?
Yes, you can eat and drink normally before the test, but avoid sugary foods or drinks that could influence your urine glucose levels. Follow your doctor’s specific instructions to ensure accurate results.
  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