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 Serum or Plasma (1) Test Area Therapeutics (1) Test Category (-) Antimicrobials (1) Test Sub-Category Alpha-2 Adrenergic Antagonists (3) Alpha Blockers (2) Antibiotics (6) Antifungals (2) Antimalarials (3) Antiparasitics (2) (-) Antivirals (1) Beta Blockers (7) Calcium Channel Blockers (5) Diuretics (2) Other (7) Test Test Name 4766SP Valacyclovir as Metabolite, Serum/Plasma