Test ID: ZG767
Component(s): Z1828 Fentanyl LOINC: 3636-8, Z4559 Norfentanyl LOINC: 11074-2
CPT code: 80299
LOINC:
Specimen Type: Red, Lav(EDTA) OR green(heparin). NO SST
Frequency: 3 – 6 days working day.
Instructions: 0.25 mL Serum or Plasma from Red, Lav(EDTA) OR green(heparin). NO SST, Refrigerate, Separate within 2 hours. Min 0.05 mL.
Text: Indications for monitoring include the following: to confirm or identify suspected drug toxicity in chronic use, therapeutic misadventure, or acute overdose; to aid in the identification of an unknown drug ingested in unknown quantities, to monitor selected patient groups at greater risk for analgesic drug toxicity or drug-to-drug interaction.
Methodology: Liquid chromatography/tandem mass spectrometry (LC/MS-MS)