Fentanyl and Metabolite
Test Mnemonic
FENYL
CPT Codes
- 80354 - QTY (1)
- G0480 - QTY (1)
Aliases
- China White, Sublimaze
- Innovar
- Norfentanyl
- Sublimaze
- FENYL
Includes
- Fentanyl, S/P, Quant
- Norfentanyl, S/P, Quant
Performing Laboratory
ARUP
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 4 mL | Serum | No additive (Red) | Refrigerated | Do not use separator tubes. Separate from cells ASAP or within 2 hours of collection. Transfer serum to standard aliquot tube |
Alternate Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 4 mL | Plasma | Sodium heparin (Green) | Refrigerated | Do not use separator tubes. Separate from cells ASAP or within 2 hours of collection. Transfer plasma to standard aliquot tube | |
| 4 mL | Plasma | EDTA (Lavender) | Refrigerated | Do not use separator tubes. Separate from cells ASAP or within 2 hours of collection. Transfer plasma to standard aliquot tube | |
| 4 mL | Plasma | Potassium oxalate/sodium fluoride (Gray) | Refrigerated | Do not use separator tubes. Separate from cells ASAP or within 2 hours of collection. Transfer plasma to standard aliquot tube |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 2 mL |
Stability
| Environmental Condition | Description |
|---|---|
| Ambient | 1 week |
| Refrigerated | 2 weeks |
| Frozen | 3 years |
Days Performed
Tue, Thu, Sat
Turnaround Time
2 - 9 days
Methodology
| Name | Description |
|---|---|
| Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS) |
Reference Range
| Fentanyl | |||||
|---|---|---|---|---|---|
| Sex | Age From | Age To | Type | Range | Range Unit |
| Normal | Cutoff: 0.1 | ng/mL | |||
| Norfentanyl | |||||
| Sex | Age From | Age To | Type | Range | Range Unit |
| Normal | Cutoff: 0.1 | ng/mL |
Special Info
Monitor patient adherence. Whole blood, serum separator tubes, sodium citrate (light blue) tubes, or plasma separator tubes will be rejected. Specimens exposed to repeated freeze/thaw cycles are unacceptable. This test is New York DOH approved.
Clinical Info
For medical purposes only; not valid for forensic use. The absence of expected drug(s) and/or drug metabolite(s) may indicate non-compliance, inappropriate timing of specimen collection relative to drug administration, poor drug absorption, or limitations of testing. The concentration value must be greater than or equal to the cutoff to be reported as positive. Interpretive questions should be directed to the laboratory.