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) Spectrophotometry (SP) (1) Sample Type (-) Blood (2) RBCs (1) Serum or Plasma (2) Urine (1) Test Area Exposure (2) Test Category Acids (1) Alcohols (1) Analgesics (1) Anesthetics (1) Antiarrhythmics (2) Anticholinergics (1) Antidepressants (2) Antidiabetics (2) Antiepileptics/Antiseizures (6) Antihistamines (1) Antimigraines (1) Antineoplastics (1) Antipsychotics (6) Antirheumatics (1) (-) Biomarkers (2) Bronchodilators (1) Cholinesterase Inhibitors (2) Diuretics (2) Hallucinogens (1) Hypoglycemic Agents (1) Immunosuppressants (5) Muscle Relaxants (1) Opiates/Opioids (1) Other (2) Pesticides/Insecticides (1) Sedative/Hypnotics (4) Solvents (3) Terpenes (1) Vasodilators (3) Volatiles (3) Test Sub-Category Cyanide (1) (-) Other (2) Test Test Name 4235B Sulfhemoglobin, Blood 4472B Thiosulfate, Blood