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 Alkaloids (2) Alpha-1 Adrenergic Agonists (1) Alpha Blockers (1) Antibiotics (1) Antifungals (1) Antispasmodics (2) Antivirals (1) Barbiturates (4) Benzodiazepines (8) Beta Blockers (6) Biomarkers (1) (-) Calcium Channel Blockers (1) CNS Stimulants (2) Diuretics (1) GABA Analogues (2) Insecticides (1) NSAIDs (8) Opiates/Opioids (5) Other (37) Phenothiazines (1) Selective Serotonin Reuptake Inhibitors (SSRI) (2) Serotonin-Norepinephrine Reuptake Inhibitors (SNRI) (2) Stimulants (2) Sympathomimetic Agents (2) Synthetic Cathinone (2) Test Test Name 3158SP Nifedipine, Serum/Plasma