Methodology
High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS)
Synonyms
Concerta; Methidate; Methylphenidate Metabolite; Ritalin
Specimen Type
Serum or Plasma
Performing Lab
NMS Labs
Epic ID
Other Reference Test
Lab Test Days
Tuesaday
Standard TAT
3 Days
Collection Information
Specimen Required
1.5-4 mL Blood
Container Type
Red Top (No Additive)
Collection Instructions
Sample should be collected 1-6 hours post dose. Plasma collected in an EDTA (lavender-top) tube is also acceptable. Serum or plasma separator tube are unacceptable.
Processing Information - Lab Use Only
Transport Temperature
Frozen-Only
Specimen Stability
Room Temp: Unacceptable; Refrigerated: Unacceptable; Frozen: 5 Months
Rejection Criteria
Specimen received room temp; Specimens received refrigerated; Serum or Plasma Separator Tubes (SST/PST)
Test Volume Required
1 mL Serum or Plasma
Minimum Test Volume
0.7 mL Serum or Plasma
Processing Instructions
Centrifuge and separate serum or plasma promptly into a plastic screw capped vial. Complete a NMS Labs requisition and submit with specimen frozen.
Included Tests
Methylphenidate; Retalinic Acid
CPT Codes
80360
Revised
09-08-16
Initials
SL