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Labcorp Oklahoma, Inc.
Test Directory


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Methotrexate Level

Order Name METHOTREX
Test Number: 4000560
Revision Date 02/24/2022
Test Name Methodology LOINC Code
Methotrexate Level
 
SPECIMEN REQUIREMENTS
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 4.0mL ( 0.5mL) Plasma Lithium Heparin PST (Light Green Top) Refrigerated
Alternate 1 4.0mL ( 0.5mL) Serum Clot Activator SST Refrigerated
Alternate 2 4.0mL ( 0.5mL) Plasma EDTA (Lavender Top) Refrigerated
Instructions Specimen Stability: Room temperature: 24 hours, Refrigerated: 14 days (if serum/plasma is separated from cells)
GENERAL INFORMATION
Testing Schedule Daily 
Expected TAT 1 day   
CPT Code(s) 80204
Lab Section Chemistry