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 Drugs of Abuse (4) (-) Therapeutics (2) Test Category Analgesics (2) Test Sub-Category Alkaloids (4) Anticoagulants (1) Antimalarials (1) Antipyretics (5) Antivirals (5) Barbiturates (4) Benzodiazepines (3) Beta-2 Andrenergic Agonists (1) Beta Blockers (3) Calcium Channel Blockers (1) Carbonic Anhydrase Inhibitors (2) Hemostatics (1) NSAIDs (1) (-) Opiates/Opioids (2) Other (15) Phenothiazines (2) Serotonin-Norepinephrine Reuptake Inhibitors (SNRI) (2) Tricyclic (5) Test Test Name 0200SP Alfentanil, Serum/Plasma 9103U Alfentanil Screen, Urine