Methylphenidate


Sunquest Code:RIT  
Epic Code:LAB3720Epic Name:Methylphenidate
Synonyms:Ritalin
Methodology:Liquid Chromatography/Tandem Mass Spectrometry
Turnaround Time:Specimens are sent to reference laboratory Mon-Fri; results are reported within 3 days.


Collection Instructions

Specimen:Blood
Optimal Volume:4 mL
Minimum\Peds Volume:1.2 mL
Container:Red (no gel) (Green (lithium heparin, no gel), Green (sodium heparin, no gel))
Collection Instructions:Peak levels occur at 1-3 hours post-dose; trough levels often not detectable.
Causes for Rejection:Specimen received unfrozen.


Processing and Shipping

Specimen Processing:Centrifuge and aliquot 2 mL, 0.5 mL minimum. Freeze immediately.
Shipping Instructions:Ship on dry ice.
Stability:7 days refrigerated; 14 days frozen.
Test Performed at or Referral Lab Lab Sendouts  (MedTox)
Referral Lab number:79


Interpretive

Reference Range:5.0-20.0 ng/mL


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