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FENTANYL CONFIRMATORY/ DEFINITIVE, URINE, BY LC-MS/MS
Message- Definitive compliance checks in patients prescribed fentanyl
- Confirming presumptive positive screening results for fentanyl [Urine quantitative values do NOT correlate well with serum
concentrations and should not be used for assessing dose efficacy or timing.]
Test Code
LAB1230613
CPT Codes
80307
Includes
Quantitative/definitive detection of fentanyl. Interpretations distinguish the drug signature detected. Quantitative results are only provided for positive results; negative results will have an interpretation of “Negative” and a component result of “Not
detected”. Adulteration testing is provided at no-charge and includes urine creatinine
detected”. Adulteration testing is provided at no-charge and includes urine creatinine
Preferred Specimen
Urine, random specimen clean plastic collection cup
Minimum Volume
5mL
Instructions
Specimens collected in clean plastic collection cups are acceptable. Store refrigerated for best stability. Required for Testing: 3mL
Transfer mixed urine specimen to a labeled red top tube and deliver to Chemistry department for track-based processing, adulteration testing,
and aliquoting for use in the mass spectrometry section.
Transfer mixed urine specimen to a labeled red top tube and deliver to Chemistry department for track-based processing, adulteration testing,
and aliquoting for use in the mass spectrometry section.
Transport Temperature
Refrigerated
Specimen Stability
Ambient: 24 hours Refrigerated: 10 days
Methodology
LC-MS/MS
Setup Schedule
Monday - Friday Dayshift
Reference Range
Negative
Clinical Significance
Cutoffs:
Fentanyl, 0.5 ng/mL
Norfentanyl, 2 ng/mL
Fentanyl, 0.5 ng/mL
Norfentanyl, 2 ng/mL
Performing Laboratory
West Virginia University Hospitals, Inc
Additional Information
Test Change Notification