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) Sample Type Blood (1) Test Area Exposure (2) (-) Therapeutics (1) Test Category Analgesics (26) Antianxiety (6) Antiarrhythmics (3) Antidepressants (11) Antidiabetics (4) Antiepileptics/Antiseizures (20) Antihistamines (4) Antihypertensives (13) Antimicrobials (5) Antipsychotics (13) Antispasmodics (3) Appetite Suppressants (3) Decongestants (4) Immunosuppressants (3) (-) Industrial/Environmental Toxins (1) Opiate/Opioid Antagonists (7) Other (1) Sedative/Hypnotics (7) Stimulants (6) Vasodilators (1) Test Sub-Category Other (1) Test Test Name 3174B Nitrate/Nitrite (Qualitative), Blood (Forensic)