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Laboratory Test Directory

Methotrexate

Components

Name Method Department Units
Methotrexate Immunochemiluminescent assay
Core Lab, Chemistry, Routine umol/L

Specimen Requirements

Reasons for Rejection

  • Collected in tube with gel separator
  • Wrong type of specimen
  • Wrong collection tube
  • Gross hemolysis
  • Gross icterus
  • Gross lipemia

Comments

Note exact time of collection.

This assay should not be used in patients receiving glucarpidase rescue therapy. Contact Dr. Amy Pyle-Eilola at (614)-722-5306 for an alternative test.

CPT Code

  • 80299