Drug testing has been enforced for at least 2 decades in many companies to determine if business's employees are on drugs. The most usually used drugs detected by drug screening are marijuana, hashish, cocaine, herion, ecstasy etc.
There are different types of drug tests carried out at present. Usually, urine, oral fluids, hair specimens are taken and examined in a testing laboratory. Drug examination can be also administered on-site, which spares a lot of company's funds and is far convenient for employees.
Thus, one of the most usually conducted on-site drug test is the oral fluids test. It is inexpensive. The company wastes approximately $1.00 per test. Besides, it not that embarrassing as collecting urine specimens. Furthermore, oral tests are fast. Hence, it takes a few minutes to get the results ready. Also, these drug tests are more difficult to adulterate compared to urine drug tests, since samples are gathered under strict supervision. Although being donor friendly, non-invasive and easy to administer, saliva drug tests tend to detect very recent drug abuse. More than six types of drugs can be determined in this way.
One more method of drug testing is examination of urine specimens. About ten types of drugs can be detected by means of urine drug tests. There are three kinds of a urine test: dip form, cassette form and cup form. The employee's urine is gathered into a specially made secure cup and closed off with a tamper-resistant tape. The cup is then directed by express delivery service to a testing laboratory where it will be tested for the presence or absence of drugs or their traces.
Hair testing is considered veyr reliable and can determine drug use as far back as ninety days. Since hair grows out, any drugs used are encased in the hair shaft. Longer hair can reveal an individual's drug history covering a longer period of time than shorter hair. Human hair grows out, on average, 0,5 inches a month. Testing laboratories commonly require around 0,5 - 1,5 inches for examination. It represents around 30 - 90 days of drug use.
Spray drug tests are also simple to run. They are very reliable and difficult to adulterate as well. But the range of drugs determined by a spray drug test is very limited.
Though many employees and privacy advocates find drug screening a brutal intrusion of privacy and violation of one's rights and freedoms, drug tests continue to be run by employers, as drug abuse is frequently the reason for absenteeism, on-the-job accidents and health problems.
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