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 (1) Serum or Plasma (1) (-) Urine (1) Test Area (-) Therapeutics (2) Test Category Antihypertensives (2) Test Sub-Category Alpha Blockers (1) Antiplatelet Agents (1) Appetite Suppressants (2) Benzodiazepines (1) (-) Calcium Channel Blockers (2) Cardiac Glycosides (1) NSAIDs (1) Opiates/Opioids (2) Other (25) Selective Serotonin Reuptake Inhibitors (SSRI) (1) Serotonin-Norepinephrine Reuptake Inhibitors (SNRI) (3) Thiazides (1) Tricyclic (5) Test Test Name 1640B Diltiazem, Blood 1640U Diltiazem, Urine