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 Antibiotics (6) Antifungals (2) Antimalarials (3) Antiparasitics (2) (-) Antivirals (1) Other (10) Selective Serotonin Reuptake Inhibitors (SSRI) (7) Serotonin-Norepinephrine Reuptake Inhibitors (SNRI) (7) Tricyclic (8) Test Test Name 4766SP Valacyclovir as Metabolite, Serum/Plasma