Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Gas Chromatography/Mass Spectrometry (GC/MS) (1) Sample Type (-) Blood (1) Serum or Plasma (3) Urine (1) Test Area Exposure (1) Test Category Acids (1) Test Sub-Category Antifungals (1) Benzodiazepines (2) (-) Carboxylic Acids (1) Diuretics (1) H2 Antagonists (1) Opiates/Opioids (2) Other (7) Selective Serotonin Reuptake Inhibitors (SSRI) (3) Trace Elements (1) Test Test Name 2134B Formic Acid, Blood