Home


METMB
METHADONE AND METHADONE METABOLITE SCREEN WITH GC-MS CONFIRMATION, URINE

Test Code METMB 
Test METHADONE AND METHADONE METABOLITE SCREEN WITH GC-MS CONFIRMATION, URINE 
Methodology Enzyme Immunoassay (EIA)
Gas Chromatography-Mass Spectrophotometry (GC-MS), if indicated 
Description The screening assay detects methadone and methadone metabolite (EDDP). If the methadone screen is > = 300 ng/mL or the methadone metabolite screen is > = 1000 ng/mL, a methadone confirmation/quantitation by GC-MS is performed at an additional charge.

THIS TEST IS INTENDED FOR CLINICAL MONITORING AND MANAGEMENT OF PATIENTS. IT IS NOT INTENDED FOR NON-MEDICAL USE SUCH AS EMPLOYMENT OR FORENSIC TESTING.

Note: Specific gravity, pH, creatinine and oxidants will be performed and reported at no additional charge to identify potential adulteration of the urine specimen

INTENDED POSITIVES:
Methadone (Dolophine, Methadose) 

Specimen 25 mL (10.0 mL minimum) from a random urine collection in a non-sterile urine container. Send specimen refrigerated. 
Reference Values EIA
Not Detected

-Methadone EIA cutoff concentration: 300 ng/mL
-Methadone metabolite EIA cutoff concentration: 1000 ng/mL

GC-MS
-Positives are reported with a quantitative GC-MS result.
-Cutoff concentration: < 100 ng/mL 

Analytic Time 1 Day; 4 Days if positive 
Day(s) Test Set Up Monday through Friday 
CPT Code(s) 80301  Drug screen, qualitative, single drug class method
80358  Methadone, if indicated
G0479  Drug test(s), presumptive by instrumented chemistry analyzers (Government payers, if appropriate)
G0480 or  G0481 or G0482 or G0483, Drug test(s), definitive (Government payers, if appropriate), if indicated