General Information On Drug Testing Brisbane

By Olivia Cross


There are several situations in which checking for drugs in a person is necessary. A drug test is the technical analysis of biological specimens in order to determine if there is the absence or presence of specific drugs or metabolites. This may be done using samples of sweat, saliva, breath, blood, hair and urine. Those living in Australia may be interested in options for drug testing Brisbane.

Testing could be done to check for steroid that enhance performance in athletes. Employers may also screen current or potential employees to see if there are illegal drugs present in their system, including cannabis, cocaine and heroin. Often police officers will test for alcohol presence, as well as the concentration of alcohol within a person. This is also known as BAC and most of these tests are issued through breathalyzer. Urinalysis is often reserved for sports or workplace testing.

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 done to identify suspicious substances, surface or material where traces of illegal substances are thought to be. This may be employed rather than testing the individuals through use of biological methods, including hair and urine testing. The test is carried out by mixing the suspicious material with a special chemical. If it triggers a color change, this indicates that a drug is present. Most of these are now sold over-the-counter and do not require labs to read the results.

This kind of presumptive testing is ideal because the person who is being tested does not need to know. In fact, only a small amount of material is needed to get results. The tests are for screening purposes only and offer generic results. Nonetheless, they can be used to detect a number of drugs. It is essential to employ professional labs and testers to get the most accurate results.




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