Methadone & Metabolite
Label Mnemonic: METHU
Epic Lab Code: LAB3590
Downtime Form: A-1a Doctor/Provider Orders - Pathology Core and Specialty Care Nursery
Commercial Mail-out Laboratory
5231 RCP
Random Urine
Collection Medium:
Yellow top round bottom tube (no additive)
Preferred Minimum: 1 mL urine
Absolute Minimum: 0.5 mL urine
Rejection Criteria:
Specimens exposed to repeated freeze/thaw cycles.
Turn Around Time:
1-4 days upon receipt in reference laboratory
Reference Range:
Positive cutoff: 10.0 ng/mL
Interpretive Data:
Drugs covered: Methadone and EDDP. Positive cutoff: 10 ng/mL For medical purposes only; not valid for forensic use. The absence of expected drug(s) and/or drug metabolite(s) may indicate non-compliance, inappropriate timing of specimen collection relative to drug administration, poor drug absorption, diluted/adulterated urine, or limitations of testing. The concentration value must be greater than or equal to the cutoff to be reported as positive. Interpretive questions should be directed to the laboratory.
Quantitative Liquid Chromatography-Tandem Mass Spectrometry
CPT Code: