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Methadone & Metabolite Level, Blood, Quantitative

Mnemonic:    [METHAD]
Name:    Methadone & Metabolite Level, Blood, Quantitative
Specimen:    4 mL serum or plasma from a red or green top. Do not use gel barrier tubes EDTA plasma is also acceptable.

Since no gel is used the sample must be centrifuged and the serum/plasma removed as soon as possible.

All separator tubes are unacceptable.
Minimum Spec:    2 mL
Transport Temp:    Refrigerated
Spec Stability:    Stable up to 2 weeks refrigerated.
Ref Lab/Code:    ARUP 0090699
  Method:    LC/MS/MS
Note:    Positive cutoff: 10 ng/mL