Test methods for drug detection

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Substance use is a worldwide crisis. For our country, this evil is growing in popularity among teenagers, creating anxiety for the whole society because it corrupts today's young generation, especially when using drugs through children. Injection routes make HIV/AIDS infection very contagious. That's why drug testing becomes even more important.

1. What is substance testing?

Substance testing is a test that helps identify a person's drug or substance use status. This test is usually the initial procedure to check in cases involving military service or community activities. Besides, many parents also apply these tests to capture the substance abuse situation of their children.

2. The drug groups are assessed

Group of Opioids: Opium, heroin, morphine, codeine, pethidine... Synthetic drug group ATS: Amphetamine, Methamphetamine (meth), MDMA (ecstasy), Methylphenidate, Dexamphetamine Cannabis group Benzodiazepine group Other groups: Cocaine, ketamine, LSD,...

3. Common drug testing methods

The most common methods of drug testing to check for drugs in a person's body include: urine drug test, blood drug test, saliva test, and hair drug test. In particular, the urine test is most commonly applied because it is most suitable for sampling, the method is simpler than other types of patient samples.
The urine test can be erroneous if the person doing the test is taking medications, such as birth control pills, medicines containing riboflavin, creatinine, and diuretics, or the urine sample is contaminated. dilution, urine samples are contaminated with additives such as soap, ammonia, cleaning chemicals...
Which drug test to use and when to do the test depends on the duration of the substance's existence addiction in the body.
Drug tests should be conducted in hospital settings, where hair tests are difficult to falsify results. For blood tests and saliva tests, if the time is far from the use of the substance, the possibility of a negative result can occur due to the very short half-life of the drug in the blood.

4. How to take a test sample

For blood samples Use alcohol to wipe the venous blood collection site before and after blood collection. Use a syringe to suck 05 ml of venous blood into the anticoagulation tube, shake gently. Samples are kept cool and sent to the inspection site.

For urine samples Clear instructions on how to collect urine in a bottle or cup. Note that the sampler should not touch the inside of the bottle or cup with hands, feet and external genitals. Collected samples are transferred to a test cup, tightly closed. Urine volume is about 20ml. The collected sample is stored in a cool place. from 20C-80C For hair model Select hair at the back of the head. Fix the hair by hand or with a wire. Take scissors and cut it close to the hairline. Depending on the length of the hair, it is possible to sample at one or more places. Amount of hair is about 0.1 grams. Put the cut hair in a clean plastic bag or jar. Finished samples are stored at room temperature For material evidences: samples are stored in a clean, wide-mouth bag... For accurate, fast and safe testing, make sure to choose a medical facility Trust is extremely important.

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