Methadone Confirmation, Urine
Reporting NameMethadone Confirmation, U
Monitoring of methadone treatment for analgesia or drug rehabilitation
Urine measurement of 2-ethylidene-1,5-dimethyl1-3,3-diphenylpyrrolidine is particularly useful for assessing compliance with rehabilitation programs.
|Test ID||Reporting Name||Available Separately||Always Performed|
|ADULT||Adulterants Survey, U||No||Yes|
An evaluation to detect the presence of adulterants will be performed and reported at no additional charge.
See Adulterant Survey Algorithm in Special Instructions.
MTDNU: Immunoassay/Gas Chromatography-Mass Spectrometry (GC-MS) Confirmation with Quantitation
ADULT: Spectrophotometry (SP)
Performing LaboratoryMayo Medical Laboratories in Rochester
Container/Tube: Plastic, 60-mL urine bottle
Specimen Volume: 20 mL
1. Collect a random urine specimen.
2. No preservative.
1. For situations where chain-of-custody is required, a Chain-of-Custody Kit (Supply T282) is available. For chain-of-custody information, see COCH / Chain-of-Custody Processing.
2. Additional drug panels and specific requests are available. Call Mayo Medical Laboratories at 800-533-1710 or 507-266-5700.
Specimen Minimum Volume
Specimen Stability Information
|Urine||Refrigerated (preferred)||14 days|
Positives are reported with a quantitative GC-MS result.
METHADONE BY GC-MS
2-ETHYLIDENE-1,5-DIMETHYL-3,3-DIPHENYLPYRROLIDINE BY GC-MS
Day(s) and Time(s) Performed
Monday through Thursday, Sunday
Test ClassificationThis test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.
CPT Code Information
LOINC Code Information
|Result ID||Reporting Name||LOINC Code|
|21110||Chain of Custody||In Process|