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) (-) Spectrophotometry (SP) (1) Sample Type Blood (2) Test Area Exposure (2) Test Category Alcohols (7) Antianxiety (3) (-) Biomarkers (1) (-) Gases (1) Sedative/Hypnotics (3) Solvents (3) Volatiles (9) Test Sub-Category Hydrocarbons (1) Other (1) Test Test Name 2745B Methane, Blood 2887B Methemoglobin, Blood