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HelpTest Code MTX Methotrexate Level
Cerner Test Code
MTX
Acceptable Collection Tube(s) or Specimen
Preferred: Red Top
Acceptable: Lavender, Gold SST, GRN PST and Na Hep GRN
Specimen Draw Volume
Volume: 2.0 mL
Minimum Volume: 1.0 mL
Processing Instructions
Draw in a Red top tube. Allow tube to clot for 30 minutes, centrifuge, and refrigerate. Protect from light.
Stability
Stability: Refrigerated 14 days, Frozen >14 days (Thaw 3 times)
Performed Test Frequency
Everyday
CPT(s)
80204
Methodology
Homogenous Enzyme Immunoassay
Performing Location
MercyOne Des Moines Laboratory, Chemistry