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Drug screening has been enforced for at least 2 decades in many
businesses to determine whether company's employees use drugs. The most
frequently taken drugs detected by drug tests are marijuana, hashish,
cocaine, herion, ecstasy and others.
There are different types
of drug tests done these days. As a rule, urine, saliva, hair samples
are collected and examined in a testing laboratory. Drug testing can be
also carried out on-site, which lowers company's expenditure and is far
convenient for employees.
Thus, one of the most usually used on-site drug test is the oral swab. It is very cheap. The business
spends about $1.00 for each test. Besides, it not that embarrassing as
gathering urine specimens. More than that, saliva tests are fast. So,
the results get ready in a few minutes. Also, these drug tests are more
difficult to adulterate than urine drug tests, as samples are obtained
under sstrict direct supervision. Though being donor friendly,
non-invasive and very easy to collect, saliva drug tests detect very
recent drug abuse. More than six types of drugs can be determined in
this way.
One more way of drug screening is examination of urine
samples. Approximately ten types of drugs can be detected by means of
urine drug tests. There are three kinds of a urine drug test: dip form,
cassette form and cup form. The employee's urine is gathered in a
specially designed secure cup and sealed with a tamper-proof tape. The
cup is then sent by express delivery service to a clinical lab where it
will be examined for drugs.
Hair testing is assumed to be
reliable and can indicate 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
than shorter hair. Human hair grows, on average, 0,5 inches a month.
Testing labs generally demand around 0,5 - 1,5 inches for testing. It
provides information on approximately 30 - 90 days of drug use.
Spray
drug tests are especially very simple to administer. They are very
precise and more difficult to adulterate as well. Yet, the number of
drugs determined by means of a spray drug test is limited.
Although
many employees and privacy advocates find drug screening a ruthless
intrusion of privacy and infringement of one's freedoms and rights,
drug tests continue to be carried out by employers, as drug abuse is
often blamed for absenteeism, health problems and on-the-job accidents.
