Drug test
Drug test
A Drug test (pronunciation: /drʌɡ tɛst/) is a technical analysis of a biological specimen, such as urine, blood, hair, sweat, or saliva, to determine the presence or absence of specified parent drugs or their metabolites.
Etymology
The term "drug test" is derived from the English words "drug", which originates from the Old French "drogue" meaning 'a pharmaceutical substance', and "test", which comes from the Old French "test" meaning 'an examination to determine a characteristic'.
Types of Drug Tests
There are several types of drug tests, each with its own specific purpose and method of operation. These include:
- Urine drug test: This is the most common type of drug test. It involves the analysis of a person's urine to detect the presence of drugs.
- Blood drug test: This test is used to detect the presence of drugs in a person's bloodstream. It is the most accurate but also the most invasive type of drug test.
- Hair drug test: This test involves the analysis of a small sample of hair to detect the presence of drugs. It can detect drug use over a longer period than urine or blood tests.
- Saliva drug test: Also known as an oral fluid test, this test involves the analysis of saliva to detect the presence of drugs. It is less invasive than a blood test and can be conducted anywhere.
Related Terms
- Drug: A substance used for medical treatment, or to affect the structure or function of the body.
- Metabolite: A substance formed in or necessary for metabolism.
- Specimen: A sample for medical testing, especially of bodily fluid or tissue.
- Pharmaceutical: Relating to medicinal drugs, or their preparation, use, or sale.
External links
- Medical encyclopedia article on Drug test
- Wikipedia's article - Drug test
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