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Oxycodone, Urine — Creatinine-Adjusted Body Mass Concentration

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

A urine test that measures oxycodone and may account for body mass and urine creatinine to reduce the effect of urine dilution.

Quick summary

["Detected oxycodone in urine indicates exposure to an opioid, but it does not by itself show the dose taken, timing of use, or current impairment."]

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

Key facts at a glance

LOINC
78767-1
Short code
oxyCODONE adj bodymass+crea Ur-mCnc
Synonyms
oxyCODONE adj bodymass+crea Ur-mCnc
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 oxycodone in a urine sample. Oxycodone is a prescription opioid pain medicine. The reported result may be adjusted using body mass and urine creatinine to help account for differences in urine concentration.

Why might I need this test?

A clinician may order this test to assess exposure to oxycodone, monitor medication use, or investigate possible opioid misuse. It may also be part of workplace, school, legal, or other drug-screening programs.

How is the test performed?

You provide a urine sample, and a laboratory measures the oxycodone present. A screening method may be used first, with additional confirmatory testing performed when needed.

How do I prepare for the test?

Collect urine in the container and at the time specified by the healthcare provider or testing program. Fasting is generally not required. Tell the clinician about all prescription medicines, over-the-counter products, and supplements you have used.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

A detectable result indicates that oxycodone was present in the urine at the time of collection, although it cannot determine the exact dose, when it was taken, or whether the person was impaired. A result can be affected by urine dilution, timing, metabolism, medications, and laboratory methods. Unexpected results should be reviewed with a healthcare professional.

Short name

Urine Oxycodone

Frequently asked questions

Does a positive urine oxycodone test mean someone is impaired?
No. It shows exposure to oxycodone, but urine testing cannot reliably determine current intoxication or driving impairment.
How long after taking oxycodone can it be detected in urine?
Detection depends on the dose, metabolism, hydration, urine concentration, and other individual factors. Oxycodone may remain detectable for a limited period after use.
Why might my result be adjusted for body mass and creatinine?
Urine can vary widely in concentration. Adjustment using body mass and urine creatinine may help make results more comparable between samples or people.
  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