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Test Code MDNS Methadone and Metabolites, Serum

Useful For

Compliance monitoring of methadone

 

Assessment of toxicity

Method Name

Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)

Reporting Name

Methadone and Metabolite, S

Specimen Type

Serum Red


Specimen Required


Container/Tube: Red top (Serum gel tubes are not acceptable)

Submission Container/Tube: Plastic vial

Specimen Volume: 0.5 mL

Collection Instructions:

1. Centrifuge and remove serum from red blood cells within 2 hours of collection.

2. Aliquot serum to plastic vial.


Specimen Minimum Volume

0.2 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Serum Red Refrigerated (preferred) 14 days
  Ambient  14 days
  Frozen  14 days

Reference Values

Not established

Day(s) and Time(s) Performed

Monday, Wednesday, Friday

Performing Laboratory

Mayo Clinic Laboratories in Rochester

CPT Code Information

80358

G0480 (if appropriate)

LOINC Code Information

Test ID Test Order Name Order LOINC Value
MDNS Methadone and Metabolite, S In Process

 

Result ID Test Result Name Result LOINC Value
36309 Methadone 3772-1
36310 EDDP 60071-8

Test Classification

This 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.

Forms

If not ordering electronically, complete, print, and send a Therapeutics Test Request (T831) with the specimen.