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) Sample Type Blood (1) Fluid (1) Serum or Plasma (1) (-) Urine (1) Test Area Drugs of Abuse (3) (-) Therapeutics (1) Test Category Analgesics (2) Antacids (1) Antianxiety (1) Antidepressants (3) Antiepileptics/Antiseizures (2) Antihistamines (3) Antihypertensives (1) Antimicrobials (1) Antipsychotics (3) Biomarkers (1) Metals/Elements (6) Muscle Relaxants (2) Other (1) Sedative/Hypnotics (5) Solvents (2) (-) Stimulants (1) Volatiles (2) Test Sub-Category CNS Stimulants (1) Test Test Name 0930U Caffeine, Urine