Drug tests will reveal whether a child has taken a drug, but will not tell you how much drug the child has taken, how often the child takes drugs, or is addicted to drugs. You can buy tests for amphetamines, cocaine, morphine and THC (marijuana, hashish) in urine at a pharmacy.
Home urine drug testis worth buying and performing in two situations: when your child denies taking drugs and you have reason to believe that he is cheating on you and to control abstinence of a child who has stopped taking drugs.
Urine drug test: how to buy a test
When buying a drug test, it is good to know what drug your child may have taken, how long they have taken it, and whether the urine you have access to is your child's urine, and whether its composition has not been changed by adding it to urine samples available chemicals to make urine alkaline. Carefully read the instructions that come with the test and follow the recommendations strictly, as the tests vary depending on the manufacturer. You also need to consider the possibility of a mistake. There are limitations and downsides to fast testing methods.
Drug Tests: Credibility
Drug tests do not always give reliable results. It happens that the result is:
- false negative - the respondent used drugs, but the test does not reveal it because of too low sensitivity or because of deliberate actions aimed at falsifying the result (e.g. by adding available chemicals to the urine sample, changing the urine pH) to alkaline). In order to be sure that the collected sample is the one we want, the subject should be observed during the act of urinating for the purpose of the test.
- false positive - indicates the use of drugs, although the examined person did not take them. This can happen when you are taking certain medications. Research shows that even eating a poppy seed cake can result in a positive result for opiates.
Drug tests: types
- urine THC tests - marijuana stays in the body for up to 3 weeks. For the test to be reliable, it should be properly carried out
- tests to detect amphetamines in urine. Such a test should be performed itno later than 72 hours after taking it, because for this time it remains in the body
- tests to detect cocaine in the urine, which remains in the body for up to 48 hours
- tests to detect barbiturates in urine, which remain in the body for up to 48 hours.
There are no tests to detect inhalants or LSD.