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HelpTest Code OXYSX Oxycodone Screen, Chain of Custody, Random, Urine
Reporting Name
Oxycodone Screen, CoC, UPerforming Laboratory
Mayo Clinic Laboratories in Rochester
Useful For
Detection of oxycodone and oxymorphone in urine following chain-of-custody procedures
This chain-of-custody test is intended to be used in a setting where the test results can be used definitively to make a diagnosis. Chain of custody is required whenever the results of testing could be used in a court of law. Its purpose is to protect the rights of the individual contributing the specimen by demonstrating that it was always under the control of personnel involved with testing the specimen; this control implies that the opportunity for specimen tampering would be limited.
Method Name
Immunoassay
Specimen Required
Supplies: Chain of Custody Kit (T282)
Container/Tube: Chain-of-Custody Kit containing the specimen containers, seals, and documentation is required.
Specimen Volume: 20 mL
Collection Instructions: Collect a random specimen without preservative in the container provided, seal, and submit with the associated documentation to satisfy the legal requirements for chain-of-custody testing.
Specimen Type
UrineSpecimen Minimum Volume
2.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Urine | Refrigerated (preferred) | 14 days | |
| Frozen | 14 days | ||
| Ambient | 72 hours |
Reject Due To
All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.Reference Values
Negative
Screening cutoff concentration:
Oxycodone: 100 ng/mL
Interpretation
A positive result indicates that the patient has used the drugs detected in the recent past.
For information about drug testing, including estimated detection times, see Drug Class Testing on MayoClinicLabs.com.
Day(s) Performed
Monday through Saturday
Report Available
2 to 3 daysTest Classification
This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.CPT Code Information
80307
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| OXYSX | Oxycodone Screen, CoC, U | 19642-8 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 61727 | Oxycodone | 19642-8 |
| 36027 | Chain of Custody | 77202-0 |
Forms
1. Chain of Custody Request is included in the Chain-of-Custody Kit (T282).
2. If not ordering electronically, complete, print, and send a Therapeutics Test Request (T831) with the specimen.
Additional Tests
| Test ID | Reporting Name | Available Separately | Always Performed |
|---|---|---|---|
| COCH | Chain of Custody Processing | No | Yes |
| ADLTX | Adulterants Survey, CoC, U | Yes | Yes |
Reflex Tests
| Test ID | Reporting Name | Available Separately | Always Performed |
|---|---|---|---|
| OXYCX | Oxycodone w/metabolite Conf, CoC, U | Yes | No |
Testing Algorithm
Testing begins with screening assay. If oxycodone screen is positive, then the liquid chromatography tandem mass spectrometry confirmation with quantification will be performed at an additional charge.
Adulterants testing will be performed on all chain of custody urine samples as per regulatory requirements.