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 (1) Serum or Plasma (1) Test Area (-) Therapeutics (1) Test Category Antihypertensives (1) Test Sub-Category Benzodiazepines (5) Beta Blockers (2) (-) Calcium Channel Blockers (1) NSAIDs (4) Opiates/Opioids (2) Other (10) Tricyclic (6) Test Test Name 3158B Nifedipine, Blood