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Glucose-to-Creatinine Ratio, Urine

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

Measures urine glucose relative to urine creatinine, helping assess how much glucose is being lost in the urine.

Quick summary

["An elevated result may suggest increased urinary glucose, which can occur with high blood glucose or impaired kidney glucose handling."]

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

Key facts at a glance

LOINC
44407-5
Short code
GH/Creat Ur
Synonyms
GH/Creat Ur
Category
kidney
Sample
urine
Container
Sterile urine container
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
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

What is this test?

This test measures the amount of glucose in urine compared with the amount of creatinine. Creatinine is a waste product produced by the muscles and is commonly used to account for urine concentration.

Why might I need this test?

It may be used to evaluate glucose in the urine, particularly when monitoring diabetes or when symptoms suggest that the kidneys are not reabsorbing glucose normally. A urine sample or a timed 24-hour collection may be requested, depending on the test ordered.

How is the test performed?

A urine sample is tested to measure glucose and creatinine, and the results are used to calculate their relationship. For a 24-hour collection, all urine produced during the specified period must be collected in the provided container.

How do I prepare for the test?

Follow the collection instructions provided by the laboratory. If instructed to collect urine for 24 hours, record the starting time, collect every sample during that period, and refrigerate the container when directed.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Urine glucose/creatinine ratio

Frequently asked questions

Does this test diagnose diabetes?
No. It can identify increased urinary glucose, but diagnosing or monitoring diabetes usually also requires blood glucose testing and clinical evaluation.
Why is creatinine included in the urine test?
Creatinine helps show how concentrated the urine is. Comparing glucose with creatinine makes the glucose result less dependent on differences in urine concentration.
Can medications or pregnancy affect the result?
Yes. Certain medications and pregnancy can increase urinary glucose, and kidney function and hydration can also affect the result.
  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