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Sweat drug screen

Sweat tests are not very popular these days due to documented problems that governmental agencies had in the past. To verify if a person take drugs, special patches fixed on the skin. These patches should stay in direct contact with skin for about 10–14 days and collect sweat. Generally they are used by parole departments, child protective services, and some other government institutions that are interested in checking drug intake over the long period of time. The thing is that in these cases urine screening is not practical.

Sweat collecting patches have security characteristics which keep them from being secretly removed and applied later without testing laboratory knowledge. When the test period is over, patch is removed by an official member of staff such as a parole officer or a social worker; then it is sent to a testing facility. If the person who is subjected to testing has consumed drugs during the testing period, positive reading for certain type of narcotic substance will be provided.

Saliva drug test

Oral fluid-based drug tests aid to detect drugs consumption during the previous few days. This kind of drug screens is becoming more widespread; saliva screens are quite difficult to adulterate; they are convenient in application. On-site saliva testing enables the implementation of random drug screening; it is the most effective type of recent drug intake checking. Saliva tests have the same accuracy as urine tests; they could be easily acquired from numerous suppliers in the United States. More often saliva screening is performed by employers, for all kinds of tests, such as reasonable suspicion, pre-employment, random, post-accident, and return-to-duty. Oral fluid based testing is similar to blood drug testing results; that’s why they are preferable in post-accident and on-the-job drug use cases.

Detection in oral fluid tests begins immediately upon use:

Amphetamines:
testing is effective from the moment of ingestion up to 2 to 3 days

Cocaine (including crack):
testing is effective from the moment of ingestion up to 2 to 3 days

Benzodiazepines:
testing is effective from the moment of ingestion up to 2 to 3 days

Marijuana and hashish (THC metabolites):
testing is effective in an hour after ingestion up to 24 hours

Opiates:
testing is effective from the moment of ingestion up to 2 to 3 days

Phencyclidine (PCP):
testing is effective from the moment of ingestion up to 2 to 3 days

Methamphetamine and ecstasy (MDMA):
testing is effective from the moment of ingestion up to 2 to 3 days.


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