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lundi 2 mars 2015

What To Know About Drug Testing Brisbane

By Olivia Cross


Varying situations may call for the testing for drugs in a person. A drug test is the analysis of biological samples to check for the absence or presence of metabolites or their parent drugs. This might be done using different specimens taken from a person, including: saliva, sweat, urine, breath, blood or hair samples. Drug testing Brisbane is available through many sources for those living in this area of Australia.

Sometimes testing is done to check for performance-enhancing steroids in athletes. An employer might choose to test potential or current employees for illegal drugs, including cocaine, heroin and cannabis. Many times police officers will perform alcohol tests to determine the presence and concentration of this within an individual. BAC is the term used to describe the content amount and tests done to check this involve application of a breathalyzer. Urinalysis is typically assigned for workplace or sports testing purposes.

A number of drugs are detectable through this process. There are detection windows that are based on numerous factors, including: drug class, frequency of usage, body mass, urine pH, metabolic rate, overall health, amount taken, and age. The period of detection for metabolites are generally longer than that of the drug itself. For instance, cocaine and heroin are only detectable through this for a few hours after the use, but metabolites can stay in the urine for days.

Saliva and oral fluid test results are like those one by blood, although there are some differences. Breath air can also produce similar results to blood tests. Generally, many of the hair tests will have the longest period of detection, with results showing for two to 90 days after the initial drug use.

Urine tests can be used to screen for parent drugs and metabolites. These determine if they are present within the system, not to what degree or length of time. This is the usual approach used by employers who wan to screen their employees. Often they are sent to a collection lab where a sample is taken. It is important that samples are guarded to make sure there is no tampering or other interruptions that could alter the accuracy of the results.

Court systems often employ hair analysis. This is considered admissible evidence, legally and scientifically. Many drugs can be tested using samples of hair, such as cocaine, ephedrine, amphetamines and cannabis.

Presumptive substance testing is also available. This is often available through over-the-counter kits and does not require professional labs. It involves using materials, surfaces or substances to detect trace amounts of illegal substances. This can be done rather than testing the biological specimen of a person. To perform this, the suspicious material is mixed with a chemical. If the response is a certain color change, drugs are considered present.

This form of testing is ideal because a person does not need to know it is being done. Only a small piece of material is necessary to do this. Tests are for screening purposes and only provide results that are generic. Still, they can determine if at least a dozen drugs are present. It is important to utilize professional labs and workers in order to get top accuracy with results.




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