Methadone Screen, Urine UMETH
5 mL urine at 2-8ºC.
Ambient: 7 days; Refrigerated: 1 month; Frozen: 3 months
|CPTCode||80301 (Alt code: G0479)|
Cutoff = 300 ng/mL
Positive samples will be confirmed by Liquid Chromatography-Tandem Mass Spectrometry with quantitative reults for methadone and EDDP (a methadone metabolite) reported.
|Preferred Specimen Collection Device(s)|
Screen cut-off: 300 ng/mL.
Urine levels in methadone maintenance patients range from 1 to 5 ug/mL (100-500 ng/mL) 24 hours after methadone dose.
This screening method detects methadone in human urine. The screening method does not detect the metabolite 1-a-acetylmethadol (LAAM) in concentrations that would be found in urine of patients on LAAM therapy.