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Urine Oleate-to-Creatinine Ratio

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

Measures urine oleate relative to creatinine. Creatinine helps account for differences in how concentrated or dilute the urine sample is.

Quick summary

["This ratio compares urinary oleate with creatinine to help interpret oleate levels regardless of urine concentration."]

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

Key facts at a glance

LOINC
47713-3
Short code
Oleate/Creat Ur-sRto
Synonyms
Oleate/Creat Ur-sRto
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 oleate, a fatty acid, and creatinine in a urine sample. The results are expressed as a ratio of oleate to creatinine, which can help account for variations in urine concentration.

Why might I need this test?

A clinician may order this test to evaluate oleate excretion. Results may be considered alongside diet, digestive problems, intestinal fat absorption, kidney function, and other laboratory findings.

How is the test performed?

A urine sample is analyzed in the laboratory for oleate and creatinine. The laboratory then calculates the oleate-to-creatinine ratio.

How do I prepare for the test?

Special preparation is usually not required. Follow the collection instructions provided by your clinician, including any instructions for a timed collection, and tell the laboratory about medicines, supplements, and unusual dietary changes.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

A high or low ratio may reflect altered oleate excretion, changes in urine concentration, dietary differences, or impaired fat absorption. Kidney function and collection conditions can also affect interpretation. This result should be reviewed with other findings by a healthcare professional and does not diagnose a condition by itself.

Short name

Urine oleate/creatinine ratio

Frequently asked questions

What does the oleate-to-creatinine ratio show?
It shows how much oleate is present relative to creatinine in the urine. Creatinine is used as a marker of urine concentration so results can be compared more reliably.
Does this test require a timed urine collection?
That depends on the laboratory and the reason the test was ordered. Follow the specific collection instructions provided, and ask your clinician whether a single or timed sample is required.
Can an abnormal result mean I have a digestive disorder?
Not necessarily. Diet, intestinal fat absorption, kidney function, medications, and collection variability can all affect the ratio, so the result must be interpreted with your medical history and other tests.
  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