ARUP Test Catalog
ARUP Consult Guide
Lab Tests Online
 
Methylphenidate & Metabolite, Urine

Mnemonic:    [U Methylph]
Name:    Methylphenidate & Metabolite, Urine
Specimen:    2 mL urine from a random collection.
Minimum Spec:    1 mL
Transport Temp:    Refrigerated
Spec Stability:    Stable up to 3 weeks refrigerated.
Ref Lab/Code:    ARUP 2003115
  Method:    Liquid Chromatography/Tandem Mass Spectrometry
Note:    Reported as: Methylphenidate and Ritalinic Acid

Positive Cutoff:
Methylphenidate: 10 ng/mL
Ritalinic acid: 100 ng/mL