Methadone, Serum

Test Code: TD_5937
CPT Code(s): 80358

$39

Test Details

Alternative Name(s)

Dolphine

Test Includes

Methadone, Serum

Methodology

Liquid chromatography-tandem mass spectrometry (LC-MS/MS)

Rejection Criteria

Samples collected in separator tubes
Hemolysis
Gross lipemia
Icterus

Reference Range(s)

Analgesic Therapy: 100-400 NG/ML
Addict Therapy: 100-1000 NG/ML

Specimen Requirements

Preferred Specimen

Plain red top tube

Minimum Volume

0.5 mL serum

Sample Stability

2 days room temperature
1 week refrigerated
2 weeks frozen

Transport Temperature

Refrigerated

Collection Instructions

Allow sample to clot in an upright position for at least 60 minutes, then centrifuge sample and transfer serum to a plastic transport tube within 2 hours of collection. Clearly label tube as serum from a plain red top tube. Refrigerate.

Alternative Specimen

N/A