Practical Information on Hair Drugs Tests
Posted January 6th, 2009 by SpikeDrug testing and in particular hair drug testing is becoming far more commonplace, particularly in the US, UK and the EU. This approach to drug testing has one major advantage over other detection methods such as urine, blood and saliva, in that it provides a far greater period of time for which drugs can be detected. (This is commonly known as the detection window). It is possible to detect drugs for several months – even years if the hair has been allowed to grow for that amount of time. Most commonly however, tests usually involve 90 day detection: This compares to typically 4-5 days for fluid based testing (or in chronic cases of cannabis misuse, one month)
Approximately fifty hair follicles are needed for successful drug hair testing. This equates to the thickness of the end of a shoelace, meaning that most people would show no obvious signs that a sample had been taken unless their hair is particularly short.
The cost of hair testing is greater than urine based tests – which are the only other viable method of achieving top-quality test results. Testing using blood is not commercially available partly due to the challenges in taking a sample in the first instance.
A typical hair drugs test costs around £60-£70 for preparation of the sample (which involves turning the hair from a solid to a liquid) and then a further £40-50 per drug type required for detection. This compares to an approximate charge of £60-75 for laboratory testing of urine which will detect illegal substances across all drug classes.
One of the most common questions how to pass a hair drug test. Very simply, there is only one definite way in which to guarantee this – Don’t take drugs!
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