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Methadone and Metabolite, Urine, Quantitative

Item Value
Available Stat? No
Test code MEDQNT
Performed by ARUP
Sendout? Yes
In House Availability No
Method Quantitative Liquid Chromatography-Tandem Mass Spectrometry
Container type Urine container
Amount to Collect 1.0 mL
Sample type Random urine
Preferred volume 1.0 mL
Min. Volume 0.5 mL
Processing notes Aliquot and freeze sample. Transport to CB frozen. Order ARUP test code 0090362.
Ref Lab Rejection Criteria Specimens exposed to repeated freeze/thaw cycles
Normal range
Synonyms Methadone Confirmation, Methadone, EDDP
Stability Ambient: 1 week; Refrigerated: 1 month; Frozen: 3 years
Turn around times 2-5 days
Additional information This assay is designed to detect: methadone and EDDP (methadone metabolite).

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.
CPT coding 80358 (Alt code G0480)
LOINC code 3774-7, 50542-0
LDT or Mod FDA? No
Last Updated 1/9/2018 5:48:53 PM
Entry Number 1825
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