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) (3) Sample Type Blood (2) (-) Fluid (2) Serum or Plasma (2) (-) Urine (1) Test Area Therapeutics (3) Test Category Anesthetics (3) (-) Antianxiety (2) Antiepileptics/Antiseizures (3) Antihistamines (1) (-) Antihypertensives (1) Antimicrobials (1) Antipsychotics (1) Hallucinogens (2) Laxatives (1) Metals/Elements (3) Mood Stabilizers (2) Stimulants (1) Test Sub-Category Benzodiazepines (2) Beta Blockers (1) Test Test Name 2488FL Labetalol, Fluid 2535FL Lorazepam, Fluid 2535U Lorazepam, Urine