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 Drugs of Abuse (1) Exposure (5) (-) Therapeutics (1) Test Category Analgesics (41) Anesthetics (2) Antacids (5) Antianxiety (6) Antiarrhythmics (8) Anticholinergics (3) Antidepressants (21) Antidiabetics (4) Antiepileptics/Antiseizures (27) Antihistamines (7) Antihypertensives (13) Antimicrobials (5) Antineoplastics (2) Antipsychotics (13) Antispasmodics (3) Appetite Suppressants (3) Decongestants (4) Immunosuppressants (3) (-) Industrial/Environmental Toxins (1) Muscle Relaxants (3) Opiate/Opioid Antagonists (7) Other (1) Sedative/Hypnotics (10) Stimulants (6) Vasodilators (3) Test Sub-Category Other (1) Test Test Name 3174B Nitrate/Nitrite (Qualitative), Blood (Forensic)