If you have been ordered to take a drug test for your job, for your sport, or because of a court order, you likely have many questions about what the process involves. By knowing more about the important facts of drug testing, you will likely have greater confidence and peace of mind when you visit a clinic for a screening. Here are some of the key aspects of drug testing that can help you gain a better understanding of what to expect.

Drug testing can usually be done with a urine sample.

In most cases, a urine sample will be all that is needed to perform a drug screening. At least one ounce of urine should be given for the test. A blood test is sometimes required if a person is suspected of being under the influence or if their history of substance abuse is being reviewed at a biological level. Saliva, sweat, and hair samples are even used in some cases for drug testing, but a urine test is usually the preferred method. 

Several types of drugs can be detected.

Drug testing can detect traces of several types of drugs with a single test. This means you won't have to undergo several tests to check for different substances. One drug testing sample can be used to determine if you have been using drugs like:

• Opioids
• Steroids
• Cocaine
• Barbiturates
• Cannabis 
• Amphetamines and methamphetamines 

False-positive results sometimes show.

The methods that are used to test for drug use are normally very accurate, but false-positive results can happen. To avoid testing positive for a drug that you have not used, you should notify the tester of any prescription medications, over-the-counter medicines, and dietary supplements you are currently taking. Poppy seeds, which can cause a false-positive result for opioid use, should not be consumed before taking a test.

Results are usually available within a few days.

The time it takes to get your results back can vary depending on the testing facility's protocol and the type of test sample that you gave, but your test results may be ready as soon as one to two business days. The clinic where you go for your test may even offer rapid drug testing, which will allow you to get your results the same day and possibly in as little as five to ten minutes.

Drug testing is needed for different purposes, and getting tested can give you and the person who is requesting the test greater assurance. A clinic that provides drug testing near you can perform the necessary screening using the most advanced testing methods.

For more information on drug testing, contact a professional near you.