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Methadone - Blood

Source Blood
Mnemonic METHA
Specimen Requirements

1 x 4 mL red top tube, NOT SST.

2.0 mL serum

Collect 4-6 hours post ingestion.

Specimen Handling

PSC & RRL:
Centrifuge, pour off, and transport serum to DSC.

Extra-regional:
Centrifuge, pour off, and freeze serum prior to transport to DSC.

DSC:
Freeze specimens upon receipt in lab; ensure frozen specimens do not thaw. Send specimen to Analytical Toxicology, who will triage specimen and advise Referrals staff of appropriate testing location.

Additional Information Record time of last dose on requisition.
Testing Location
Testing Frequency Once monthly.
Alternate Name(s)
Reference Interval