Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) (-) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (1) Sample Type Serum or Plasma (1) Test Area Therapeutics (1) Test Category Alcohol Deterrents (1) Analgesics (16) Anesthetics (4) Antianxiety (7) Antiarrhythmics (4) Anticholinergics (10) Anticoagulants (3) Antidepressants (5) Antiepileptics/Antiseizures (10) Antifibrinolytics (1) Antihistamines (1) Antihypertensives (8) Antimicrobials (4) Antineoplastics (1) Antipsychotics (4) Antithrombotics (8) Benzodiazepines (3) Bronchodilators (4) Diuretics (5) (-) Immunosuppressants (1) Metals/Elements (6) NPS/Designer Drugs (18) Pesticides/Insecticides (3) Potassium Channel Blockers (2) Psychoactives (12) Stimulants (11) Volatiles (5) Test Sub-Category Other (1) Test Test Name 0649SP Methotrexate, Serum/Plasma