Drug of abuse testing may be used in one of several different ways:
Medical Screening
Medical screening for drugs of abuse is primarily focused on determining what drugs or combinations of drugs a person may have taken so that he can receive the proper treatment. The overall effect on a particular person depends on the response of his body to the drugs, on the quantity and combination he has taken, and when each was taken. For instance, MDMA (Ecstasy) is initially a stimulant with associated psychedelic effects, but it also causes central nervous system (CNS) depression as it is metabolized and cleared from the body. In many cases, drugs have been combined and/or taken with ethanol (alcohol). If someone drinks ethanol during this time period, they will have two CNS depressants in their system, a potentially dangerous combination.
When is it ordered?
Drug testing is performed whenever a doctor, employer, legal entity, or athletic organization needs to determine whether a person has illegal or banned substances in his body. It is also performed to monitor a known or suspected substance abuse patient, and whenever a person has symptoms that suggest drug use.
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