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HelpTest Code MISC1WARDEMPDR Methylphenidate (Ritalin®)
Department
SEND OUTS
Reference Lab Test Number
MPDR
Collection Requirements
CRITICAL FROZEN.
Collect 1-6 hours postdose.
Refer To
Primary Collection Container
Red (No Gel)
Alternate Collection Container
Lavender 4 mL (K3EDTA)
Transport
Serum or plasma frozen
Preferred Transport Temperature
Frozen
Processing
CRITICAL FROZEN.
Centrifuge, separate and send 2.0 mL serum (1.0 mL minimum) frozen in a screw-capped plastic vial.
Stability
Ambient: Unacceptable
Refrigerated: Unacceptable
Frozen: 5 months
Minimum Testing Volume
1.0 mL
Reference Range
By report
Methodology
Liquid Chromatography/Mass Spectrometry
Performed
Monday and Friday
Reported
8-11 days
CPT Codes
80360
Unacceptable Conditions
SST Tubes.