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Test Name:
Fentanyl and Metabolite, Serum or Plasma
- SBMF No:
45260 - Performance Lab Name:
ARUP Laboratories - Test Mnemonic:
FENTANYLSP - ABN:
Not required - CPT Code:
83925 - LOINC Code:
19146-0 - Ref Lab Test No:
0092569 - Test Includes:
Fentanyl
Norfentanyl (Metabolite) - Also Known As:
Sublimaze® - Spec Type:
Plasma - Spec Container:
Gray top (fluoride/oxalate) tube - Alt Spec Type:
Serum or plasma - Alt Spec Container:
Red top (serum) tube, green top (sodium heparin) tube, or lavender top (EDTA) tube - Pref Vol:
4.0 mL - Min Vol:
2.5 mL
Pediatric Collection: 1.5 mL - Fasting:
No - Spec Collect:
Do not use gel-barrier tubes for specimen collection
Routine venipuncture - Spec Process:
Serum sample tubes, clot 30 minutes
Promptly centrifuge 15 minutes
Immediately transfer serum or plasma to separate plastic tube - Spec Store Transport:
Room temperature - Spec Stability:
After separation from cells:
1 month room temperature (20-30°C)
1 month refrigerated (2-8°C)
3 years frozen (-20°C) – Do not use frost-free units that undergo repeated freeze/thaw cycles - Spec Reject:
Sample exposed to repeated freeze/thaw cycles
Sample collected in gel-barrier tube or lt. blue top (sodium citrate) tube - Spec Remarks:
Separate serum or plasma from cells ASAP - Methodology:
Liquid Chromatography-Tandem Mass Spectrometry - Clinical Significance:
Refer to:
- Reference Range:
- Reference Interval:
- By report
- Interpretive Data:
- For medical purposes only; not valid for forensic use
Drugs covered: fentanyl and metabolite (norfentanyl)
Positive cutoff: 0.1 ng/mL
- Day Run:
Sun-Sat (daily) - Time Reported:
2-5 days - Test Type:
TOX-TDM
