Drug Testing
Drug Testing
Drug Testing (pronunciation: /drʌɡ 'tɛstɪŋ/) is a procedure that involves the analysis of biological specimens, such as blood, urine, hair, saliva, or sweat, to detect the presence or absence of specific drugs or their metabolites.
Etymology
The term "Drug Testing" is derived from the English words "drug", which refers to a substance that has a physiological effect when ingested or otherwise introduced into the body, and "testing", which refers to the act of conducting an examination or evaluation.
Types of Drug Testing
There are several types of drug testing, including:
- Urine drug test: This is the most common type of drug test. It involves the collection and analysis of a urine sample to detect drug metabolites.
- Blood drug test: This type of test involves the collection and analysis of a blood sample. It is often used to detect current drug use.
- Hair drug test: This type of test involves the collection and analysis of a hair sample. It can detect drug use over a longer period than urine or blood tests.
- Saliva drug test: This type of test involves the collection and analysis of a saliva sample. It is often used to detect recent drug use.
- Sweat drug test: This type of test involves the collection and analysis of a sweat sample. It is often used to detect drug use over a longer period than urine or blood tests.
Related Terms
- Drug metabolites: These are substances produced by the body as it processes drugs. They can often be detected in drug tests.
- Drug detection window: This is the period during which a drug or its metabolites can be detected by a drug test.
- False positive drug test: This occurs when a drug test incorrectly indicates the presence of a drug.
- False negative drug test: This occurs when a drug test incorrectly indicates the absence of a drug.
External links
- Medical encyclopedia article on Drug Testing
- Wikipedia's article - Drug Testing
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