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Labcorp Oklahoma, Inc.
Test Directory


Index:

Methylphenidate Confirmation Urine

Order Name MPHENI CNF
Test Number: 4000140
Revision Date 05/14/2020
Test Name Methodology LOINC Code
Methylphenidate Confirmation
Liquid Chromatography/Mass Spectroscopy 20548-4 
Methylphenidate Interpretation
Interpretive information.  
Ritalinic Acid Confirmation
Liquid Chromatography/Mass Spectroscopy 72790-9 
Ritalinic Acid Interpretation
Interpretive information.  
SPECIMEN REQUIREMENTS
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 10 mL (1 mL) Urine, Random Sterile Container or Monovette Refrigerated
Instructions Keep refrigerated. Specimen Stability: Ambient 7 days. Refrigerated 30 days. Frozen 6 months
Please provide accurate prescription list to lab.
GENERAL INFORMATION
Testing Schedule Mon - Fri 
Expected TAT 3-5 days  
Clinical Use Used to evaluate medication compliance in pain management. 
CPT Code(s) G0480 (alternate:80360)
Lab Section Chemistry LC-MS