Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Colorimetry (C) (1) Gas Chromatography/Mass Spectrometry (GC/MS) (1) Sample Type Blood (2) Serum or Plasma (2) (-) Urine (1) Test Area Exposure (1) Test Category (-) Acids (1) Analgesics (1) Antiarrhythmics (1) Antidepressants (3) Antihypertensives (1) Depressants (2) Metals/Elements (1) Other (1) Sedative/Hypnotics (1) Test Sub-Category Carboxylic Acids (1) Test Test Name 2134U Formic Acid, Urine