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) (2) Sample Type Blood (2) Serum or Plasma (2) (-) Urine (2) Test Area Therapeutics (2) Test Category Antimicrobials (1) Stimulants (1) Test Sub-Category (-) Alkaloids (1) (-) Antibiotics (1) Anticholinergics (1) Benzodiazepines (1) Cyanide (1) Opiates/Opioids (5) Other (13) Phenothiazines (1) Toxic Elements (6) Tricyclic (3) Vasoconstrictors (1) Test Test Name 4380U Theobromine, Urine 4704U Trimethoprim, Urine