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Glucose in Urine (Qualitative, 24-Hour Collection)

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

This test checks for glucose (sugar) in your urine over a 24-hour period. It helps identify whether your body is excreting extra sugar, which may signal conditions like diabetes or kidney issues.

Quick summary

["A simple urine test to monitor sugar levels over time."]

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

Key facts at a glance

LOINC
40849-2
Short code
Glucose sp1 p chal Ur Strip-mCnc
Synonyms
Glucose sp1 p chal Ur Strip-mCnc
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 Matters

Glucose in urine can occur when your body struggles to regulate blood sugar properly. While small amounts may be normal, consistently high levels can signal diabetes or other metabolic disorders. This test is often used as part of a broader evaluation for diabetes screening or monitoring kidney function.

How the Test Works

You’ll collect all your urine over 24 hours and submit it in one container. The test measures the presence of glucose using a chemical reaction detected in a lab. Results are qualitative (yes/no) rather than quantitative, so it doesn’t provide exact amounts.

What to Expect Before the Test

No special preparation is needed, but drink plenty of water to ensure a full urine collection. Avoid using diuretics or medications that may affect urine sugar levels before testing.

What the Results Mean

Positive results (glucose detected) may prompt further testing, such as blood sugar monitoring or a full urine chemistry panel, to determine the underlying cause. Negative results don’t rule out diabetes or other conditions, so follow-up may still be recommended.

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: Glucose in Urine Can Signal Multiple Conditions

Short name

Urine Glucose Screen

Frequently asked questions

What causes glucose to appear in urine?
Glucose in urine can result from diabetes (especially type 1 or uncontrolled type 2), kidney problems (like diabetic nephropathy), or conditions affecting how your body processes sugar. Stress, illness, or certain medications may also temporarily increase urine glucose levels.
How often should I get this test?
Your doctor may recommend this test periodically if you have diabetes, kidney disease, or other risk factors. Frequency depends on your health status and treatment plan—always follow your provider’s guidance.
Can diet or exercise affect urine glucose results?
Yes, diet high in sugar or intense exercise may temporarily raise urine glucose levels. To avoid interference, avoid extreme dietary changes or high-intensity activity 24 hours before testing.
  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