- D3002,Guanda Business Center,No 5 Yunan Road Tangdong,Tianhe District,Guangzhou,China
From traditional drugs to synthetic drugs to new drugs with great camouflage, there are many kinds of drugs and they are constantly "upgrading". The number of drug users is increasing every year. How to judge a person's drug use? ——More scientific and accurate drug testing is needed.
Many people, due to time, conditions and other restrictions, even if they have doubts about whether the people around them take drugs, and have no way to do it, want to know whether the people around them have taken drugs, the best choice is to do drug testing first.
What is drug testing like?
Our most common drug testing is roughly three kinds: urine testing, saliva testing, blood testing, currently urine testing is the most common.
The principle and operation of drug test paper is similar to that of pregnancy test paper. Its main characteristics are fast, convenient and portable. At present, it is widely used in personal, drug rehabilitation hospital and public security department, and is one of the conventional reagents for drug detection.
The longest validity period of urine test is one week (the best test time is within three or four days after taking drugs), so it is possible to appear. Drug addicts took drugs one week ago, but urine test is negative (i.e. no drug use was detected).
But urine test samples are relatively dirty, sampling is also very awkward, patients often have the psychology of privacy violation, and urine samples are easy to be adulterated and dropped, one-on-one supervision must be carried out to take urine, urine may also have cross reaction with commonly used legal drugs, it is easy to cause false positive results (positive for drug abuse), which is relatively complex and troublesome.
Saliva detection is more sensitive than urine detection, and saliva detection also has the advantages of convenient and fast operation. Compared with urine detection, saliva detection is more easily accepted by patients, and saliva detection is not limited by the site and gender.
However, saliva detection is also dirty and easy to contaminate (affected by food, chewing gum, cigarettes, etc.), which can easily lead to the instability of the detection results, and ultimately lead to errors.
Saliva detection is easy to obtain, the premise is the high degree of cooperation of the tester, so it is usually used more in drug testing.
Blood test can make up for some defects of urine and saliva test, but it has higher requirements for timeliness, because the metabolism of components in blood poisoning products is very fast. In addition, because of the high cost of blood testing, and only a few provincial hospitals are equipped with testing equipment, so individuals rarely use such testing methods. The traffic police finally confirm that drunk driving and drunk driving are through blood test.
Although the professional level of blood test is much higher than the former two, if the blood can not be tested for a long time after collection, it is likely that the sample can not be used.
The advantages and disadvantages of the above three traditional tests inevitably lead to a question: is there any better way to carry out drug testing with such advanced science and technology?
Of course there are!
Hair detection sounds amazing. Does it always make people question whether it is reliable?
Blood and body fluid tests have a high requirement for timeliness, but about seven days after taking drugs, the drug ingredients in the body are basically metabolized clean, and it is meaningless to do such tests again. At this time, if you want to determine whether the examinee is taking drugs, you need to detect the drug composition in his body through hair.
Compared with the traditional blood and urine detection, hair detection has incomparable unique advantages, such as long detection time, comprehensive drug information, easy to take, save, repeat sampling and so on. The main thing is that the test personnel can reflect the drug abuse situation for weeks to months according to the length of their hair.
The applicability of hair detection is more extensive. As soon as many people hear about hair detection, fixed thinking thinks that hair is used for detection. In fact, we can apply the hair detection to any part of the body, which increases the range of sampling and is more convenient for collection.
Think hair tests can contaminate? It is understood that hair dyeing and perming can not affect hair detection. It is almost impossible to use these methods to affect detection results.
For some female drug addicts, hair is like a lifeblood. It seems impossible to move their own hair. Rest assured, hair detection will not be disabled, because we do not need a whole head of hair. Although there are certain requirements for hair detection (specific body can consult hair detection agency in advance), it is not difficult, which can be assured.
To sum up, urine, saliva (in fact, sweat is the same) and blood tests are suitable for short-term use, while hair tests are suitable for long-term use. If the two can be combined, the results can be accurately obtained, that is, people will not be wronged, and drug addicts who are hiding around will have nothing to say.
The hair test and the traditional urine test method we always use complement each other, which greatly increases our credibility for drug use test, and the test results are more accurate for the tester. It can fully prove whether there is drug use, the type of drug use, etc., which is the best choice for drug use patients.