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 (27) Anesthetics (1) Antacids (4) Antianxiety (4) Antiarrhythmics (7) Anticholinergics (2) Antidepressants (12) Antidiabetics (4) Antiepileptics/Antiseizures (21) Antihistamines (5) Antihypertensives (10) Antimicrobials (5) Antineoplastics (2) Antipsychotics (10) Antispasmodics (2) Appetite Suppressants (2) Decongestants (3) Immunosuppressants (2) (-) Industrial/Environmental Toxins (1) Muscle Relaxants (2) Opiate/Opioid Antagonists (4) Other (1) Sedative/Hypnotics (6) Stimulants (4) Vasodilators (3) Test Sub-Category Other (1) Test Test Name 3174B Nitrate/Nitrite (Qualitative), Blood (Forensic)