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) (3) High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS) (1) Sample Type Blood (1) Serum or Plasma (2) Urine (1) Test Area (-) Therapeutics (4) Test Category Dopamine Precursor (1) Stimulants (3) Test Sub-Category (-) Amphetamines (3) Antiarrhythmics (9) Antiparasitics (3) Benzodiazepines (4) Beta Blockers (3) Metals/Elements (6) Other (26) (-) Parkinsons (1) Your search has returned no tests.