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HelpTest Code FENTU Fentanyl with Metabolite Confirmation, Random, Urine
Reporting Name
Fentanyl w/metabolite Conf, UUseful For
Detection and confirmation of illicit drug use involving fentanyl
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Specimen Type
UrineOrdering Guidance
For situations where chain of custody is required, a Chain of Custody Kit (T282) is available. For chain-of-custody testing, order FENTX / Fentanyl with Metabolite Confirmation, Chain of Custody, Random, Urine.
For monitoring therapeutic drug levels, order FENTS / Fentanyl, Serum.
Additional Testing Requirements
If urine creatinine is required or adulteration of the sample is suspected, the following test should also be ordered, ADULT / Adulterants Survey, Random, Urine.
Specimen Required
Supplies: Plastic, 10-mL urine tube (T068)
Collection Container/Tube: Clean, plastic urine collection container
Submission Container/Tube: Plastic, 10-mL urine tube
Specimen Volume: 10 mL
Collection Instructions:
1. Collect a random urine specimen.
2. No preservative.
Additional Information:
1. No specimen substitutions.
2. No STATS are accepted for this procedure.
3. Submitting less than 10 mL will compromise our ability to perform all necessary testing.
Specimen Minimum Volume
2.1 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Urine | Refrigerated (preferred) | 14 days | |
| Frozen | 14 days | ||
| Ambient | 72 hours |
Reference Values
Negative
Day(s) Performed
Monday, Wednesday, Friday
Test Classification
This test was developed, and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the US Food and Drug Administration.CPT Code Information
80354
G0480 (if appropriate)
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| FENTU | Fentanyl w/metabolite Conf, U | 67822-7 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 45530 | Fentanyl | 58381-5 |
| 45531 | Norfentanyl | 58383-1 |
| 45532 | Fentanyl Interpretation | 69050-3 |
Report Available
2 to 5 daysReject Due To
| Gross hemolysis | OK |
| Gross icterus | OK |
Method Name
Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)
Forms
If not ordering electronically, complete, print, and send a Therapeutics Test Request (T831) with the specimen.