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Glucose (24-hour urinary collection) measured by enzymatic method

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

This test checks how much glucose (sugar) appears in your urine over a full day. It helps assess how well your body controls blood sugar levels.

Quick summary

["A 24-hour urine glucose test helps identify patterns of sugar in urine, which may indicate diabetes or other metabolic conditions."]

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

Key facts at a glance

LOINC
6757-9
Short code
Glucose 4h p 75 g Glc PO Ur Ql Strip
Synonyms
Glucose 4h p 75 g Glc PO Ur Ql Strip
Category
glucose
Sample
urine
Container
Sterile urine container
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
Method
test-strip
CPT
82947
SNOMED
260395008
Specimen volume
10 mL
Stability
Room temperature: 2h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
4–24 hours
Order
routine

Why This Test Is Done

Your doctor may order this test if they suspect diabetes, kidney issues, or other conditions affecting how your body processes sugar. It’s also used to monitor long-term sugar control in people with diabetes.

What to Expect Before the Test

You’ll need to collect all urine for 24 hours, starting after you wake up and ending the next morning. Store the urine in a clean container, keeping it refrigerated if possible. Follow your healthcare provider’s instructions precisely.

How the Test Works

A sample of your 24-hour urine is tested for glucose using an enzymatic method, which measures the sugar content accurately. This method is sensitive and reliable for detecting small amounts of glucose in urine.

What the Results Mean

The results show the total amount of glucose excreted in urine over 24 hours. High levels may suggest diabetes, poor insulin function, or other metabolic disorders. Normal results indicate your body is managing sugar well.

Reference range

Fasting: 70-100 mg/dLN/A

Specimen: urine

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

Short name

24-Hour Urine Glucose

Frequently asked questions

What does a high or low result indicate?
High urine glucose levels can signal diabetes, kidney problems, or conditions like gestational diabetes. Repeated high readings may require further testing or adjustments to your treatment plan.
What does it mean if my results are normal?
Normal results suggest your body is processing sugar efficiently and may not need additional monitoring unless you have a known risk for metabolic issues.
How often should I get this test?
Your doctor will determine frequency based on your health needs—typically for people with diabetes or those at high risk for metabolic disorders, tests may be done annually or more often.
  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