A<unk>  is a technical analysis of a biological specimen, for example urine, hair, blood, breath, sweat, or oral fluid/saliva—to determine the presence or absence of specified parent<unk> s or their metabolites. Major applications of<unk> ing include detection of the presence of performance enhancing steroids in sport, employers and parole/probation officers screening for<unk> s prohibited by law (such as cocaine, methamphetamine, and heroin) and police officers testing for the presence and concentration of alcohol (ethanol) in the blood commonly referred to as BAC (blood alcohol content). BAC tests are typically administered via a breathalyzer while urinalysis is used for the vast majority of<unk> ing in sports and the workplace. Numerous other methods with varying degrees of accuracy, sensitivity (detection threshold/cutoff), and detection periods exist. A<unk>  may also refer to a test that provides quantitative chemical analysis of an illegal<unk> , typically intended to help with responsible<unk>  use.
Drug test
Clinical chemistry
AutoAnalyzer
Blood test
Serology
Hematology analyzer
Personality test
Rapid diagnostic test