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) (2) Sample Type Blood (3) Serum or Plasma (3) (-) Tissue (1) (-) Urine (1) Test Area Therapeutics (2) Test Category Analgesics (4) Antianxiety (2) Anticholinergics (2) Anticoagulants (1) Antidepressants (7) (-) Antihypertensives (2) Antimicrobials (2) Antipsychotics (2) Biomarkers (1) Bronchodilators (1) Depressants (5) Diuretics (1) Metals/Elements (6) NPS/Designer Drugs (2) Pesticides/Insecticides (1) Sedative/Hypnotics (1) Solvents (1) Stimulants (6) Volatiles (4) Test Sub-Category Beta Blockers (2) Test Test Name 0483TI Atenolol, Tissue 0483U Atenolol, Urine