Detection and quantification of oxycodone, oxymorphone, noroxycodone, and noroxymorphone in urine
Liquid Chromatography Tandem Mass Spectrometry (LC-MS/MS)
Oxycontin
Opiates
Percodan
Noroxycodone
Noroxymorphone
Urine
For situations where chain of custody is required, a Chain-of-Custody Kit (T282) is available. For chain-of-custody testing, order OXYCX / Oxycodone with Metabolite Confirmation, Chain of Custody, Random, Urine.
Additional drug panels and specific requests are available; call 800-533-1710 or 507-266-5700.
Supplies: Sarstedt Aliquot Tube 5 mL (T914)
Collection Container/Tube: Plastic urine container
Submission Container/Tube: Plastic, 5-mL tube
Specimen Volume: 3 mL
Collection Instructions:
1. Collect a random urine specimen.
2. No preservative.
Additional Information:
1. No specimen substitutions.
2. STAT requests are not accepted for this test.
3. Submitting less than 1 mL will compromise our ability to perform all necessary testing.
If not ordering electronically, complete, print, and send a Therapeutics Test Request (T831) with the specimen.
2.5 mL
Gross hemolysis | OK |
Gross icterus | OK |
Specimen Type | Temperature | Time | Special Container |
---|---|---|---|
Urine | Refrigerated (preferred) | 28 days | |
Frozen | 28 days | ||
Ambient | 14 days |
Detection and quantification of oxycodone, oxymorphone, noroxycodone, and noroxymorphone in urine
Oxycodone is metabolized to noroxycodone, oxymorphone, and their glucuronides and is excreted primarily via the kidney. The presence of oxycodone indicates exposure to oxycodone within 2 to 3 days prior to specimen collection.
Oxymorphone is metabolized in the liver to noroxymorphone and excreted via the kidney primarily as the glucuronide conjugates. Oxymorphone is also a metabolite of oxycodone and, therefore, the presence of oxymorphone could also indicate exposure to oxycodone.
The detection interval for opiates is generally 2 to 3 days after last ingestion.
Negative
Cutoff concentrations by liquid chromatography tandem mass spectroscopy:
Oxycodone: 25 ng/mL
Noroxycodone: 25 ng/mL
Oxymorphone: 25 ng/mL
Noroxymorphone: 25 ng/mL
This procedure reports the total urine concentration; this is the sum of the unconjugated and conjugated forms of the parent drug
Other drugs in the opioid class, such as fentanyl, meperidine, methadone, and opiate antagonists such as naloxone, are not detected.
1. Jutkiewicz EM, Traynor JR. Opioid analgesics. In: Brunton LL, Knollmann BC, eds. Goodman and Gilman's: The Pharmacological Basis of Therapeutics. 14th ed. McGraw-Hill, Inc; 2023:chap 23
2. Baselt, RC. Disposition of Toxic Drugs and Chemical in Man. 10th ed. Biomedical Publications; 2014
3. Hackett LP, Dusci LJ, Ilett KF, Chiswell GM. Optimizing the hydrolysis of codeine and morphine glucuronides in urine. Ther Drug Monit. 2002;24(5):652-657
4. Langman LJ, Bechtel LK, Holstege CP. Clinical toxicology. In: Rifai N, Chiu RWK, Young I, Burnham CAD, Wittwer CT, eds. Tietz Textbook of Laboratory Medicine. 7th ed. Elsevier; 2023:chap 43
Confirmation with quantification by liquid chromatography tandem mass spectrometry.(Unpublished Mayo method)
Monday through Friday
This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.
80365
G0480 (if appropriate)
Test Id | Test Order Name | Order LOINC Value |
---|---|---|
OXYCU | Oxycodone w/metabolite Conf, U | 94304-3 |
Result Id | Test Result Name |
Result LOINC Value
Applies only to results expressed in units of measure originally reported by the performing laboratory. These values do not apply to results that are converted to other units of measure.
|
---|---|---|
62616 | Oxycodone-by LC-MS/MS | 16249-5 |
35965 | Oxymorphone-by LC-MS/MS | 17395-5 |
36022 | Oxycodone Interpretation | 69050-3 |
42010 | Noroxycodone-by LC-MS/MS | 61425-5 |
42011 | Noroxymorphone-by LC-MS/MS | 90894-7 |