Urine Drug Test
Perhaps the most famous Asian sword there is, katana is a slightly-curved, single-edged slicer with a 2.5' long blade. It is often depicted in Japanese movies and anime series, and can be characterized as "bloody" and "deadly," for it can slice a human in the flesh to the bone--- even slash a man diagonally in half.
Blood Drug Test
This type of drug testing is the most accurate of them all--- although it can be expensive. Through blood screening, presence of drugs (such as Cannabinoids) can be easily and correctly detected. In addition, this method is usually performed in investigations about accidents or for health/life insurance.
Hair Drug Test
Testing of drug presence using hair strands is a dependable, yet expensive and time-consuming, method that is rarely used by medical centers. It works by dissolving about 50 strands of hair into a series of solvents, then examining it using the two-step process, Gas Chromatography and Mass Spectometry.
Some of you might ask: how exactly are drugs detected in hair strands?
Simple answer: upon consumption of drugs, its metabolites are circulated around the blood. As this happens, they penetrate the scalp’s blood vessels and are then filtered through each strand of the hair. As a result, these drug metabolites stay in the hair for a long time--- long enough to become permanent evidence of drug use.
Perspiration Drug Test
This type of drug test is primarily used in people who are on parole or probation. The perspiration drug test works by making the subject wear a specific patch for a period of time, which detects drug presence excreted through the person’s sweat..
Saliva Drug Test
This method of drug testing has a very limited detection power, for it can only determine currently-consumed drugs. For example, a study confirmed that saliva testing can only detect cannabinoids after 4-10 hours of consumption. It is still reliable, but cannot be used as often as the other tests.
How Much For A Drug Test?
In the United States, the cost for a drug test (urine, hair, saliva, etc.) usually varies, depending on the type of test or the level of a certain company.
For example, OHS, Inc., a company with clients in 50 US states, offers drug test that cost $28 (minimum) to $42 (maximum). On the other hand, most laboratories typically charge $50-$80 for urine or saliva drug tests, and $100-$650 for hair or blood drug tests.
Meanwhile, supermarkets also offer "do-it-yourself" at home drug tests for low rates. For instance, Walgreens has an "at home" urine drug test for only $10, while Drugstore.com offers the same thing for $28. However, these rates tend to increase, depending on the type that you will purchase (6-type drug test, 12-type drug test, etc.)
How Accurate Are Drug Test?
In general, all types of drug test are not 100% accurate. Even the blood drug test, the most precise of all methods, is not completely accurate most of the time.
However, this does not mean that taking a drug test is a total waste of time. Even if they are not 100% correct, all types of drug screening are very helpful in determining if a person if intoxicated with illegal substance or not. Yes, false positives are inevitable in all drug tests, but all hospitals and health centers ensure that the final results will still be fair and truthful in all sense. This is where second tests and confirmation screenings come in.
In all cases, if a drug test result comes back positive, then a second test will be conducted in order to determine if it is a false one or not. This puts the integrity and accuracy of a drug test in line again, making sure that it delivers 99%, if not 100% accurate outcomes.
Are You Ready To Be Tested?
Drug tests are very helpful tools in determining illegal substances inside the body, not only for your future employers or bosses, but also for you.
Nowadays, it is easy to be injected with drugs without you noticing, so a simple urine drug test (or others, if you can afford it) might come in handy. Be safe!