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) Test Area Therapeutics (2) Test Category Antihypertensives (2) Test Sub-Category Benzodiazepines (8) Beta Blockers (3) (-) Calcium Channel Blockers (2) NSAIDs (8) Opiates/Opioids (3) Other (26) Stimulants (3) Synthetic Cathinone (3) Test Test Name 3158B Nifedipine, Blood 3158SP Nifedipine, Serum/Plasma