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 Blood (4) (-) Fluid (1) Serum or Plasma (6) Urine (3) Test Area (-) Therapeutics (1) Test Category Analgesics (4) Anesthetics (1) Antianxiety (1) Antidepressants (2) Antidiabetics (1) Antiepileptics/Antiseizures (1) Antihistamines (1) (-) Antihypertensives (1) Antimicrobials (1) Mood Stabilizers (1) Muscle Relaxants (2) Sedative/Hypnotics (2) Test Sub-Category Beta Blockers (1) Test Test Name 2488FL Labetalol, Fluid