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Urine screens are the most common method of drug testing. They are painless, easy, quick, and cost-effective. They can also check for both illegal and prescription drugs. The analysis can determine whether a person has used specific drugs in the past few days or weeks, even after the effects of the drugs have worn off. In this article, we take a close look at urine drug screens. We describe the types of drugs they can detect and how long these substances remain traceable in urine.
A doctor may request a urine drug screen if they think that a person has been using illegal drugs or misusing prescription drugs. For example, a doctor may request a urine screen to determine if a person is misusing the opioids that the doctor had prescribed to treat their chronic pain.
An emergency services staff member may request a urine drug screen if they suspect that a person is behaving strangely or dangerously due to the Urine drug test result time of drugs. Drug and alcohol rehabilitation programs may request urine drug screens to check whether a person is staying sober.
Many sporting officials require urine drug screens to check Urine drug test result time athletes have used performance-enhancing drugs. This is more common in workplaces that require high levels of safety. An employer may be more likely to test a person who operates vehicles or machinery, for example. However, if a person suspects alcohol consumption, they are more likely to request a breath or blood test. Urine screens can also detect nicotine and cotinine, which the body produces when it breaks down nicotine.
An immunoassay IA test is the most common type, because it is the quickest and most cost-effective. However, it can give a false-positive result. This shows the presence of a drug when a person has not used it. A second type of urine screen can confirm the of an IA test. The second test is called gas chromatography-mass spectrometry GC-MS.
Usually, providers only use GC-MS tests as follow-ups because they are more expensive, and the take longer to receive. Urine drug screens use cut-off levels. This means that a result will only be positive if the amount of the drug is above a certain level.
Having cut-off levels helps prevent false-positive. These can occur when a person has not taken an illegal drug, but they have eaten food containing a legal amount of hemp, coca, or opium. For example, eating poppy seeds before a urine drug screen can, in rare cases, cause the test to detect the presence of opium.
Cut-off levels also reduce the chance of a person testing positive after only passive exposure to a drug. Secondhand smoke is one example of passive exposure. These fail to indicate that a person has recently done drugs. A false-negative result can occur if the urine is very diluted. Many factors affect the length of time that a test can detect a certain drug in the body. These factors include:. If a person uses a drug very frequently or heavily, a urine test will detect the drug for a longer period. For example, the detection times for marijuana can depend on how often a person uses it:.
This table shows how long a urine test can detect certain drugs after a person has taken them:. The test requires little preparation. Usually, a person just has to urinate into a plastic container. It is important to note that certain medicines and supplements can cause false-positive that indicate illegal drug use.
A medical professional or technician will carry out the urine drug screen. They may start by asking a person to:. The technician will then measure the temperature of the urine sample to ensure that it is suitable for testing. They will then seal the sample in a plastic bag. Both the donor Urine drug test result time the technician should keep an eye on the sample until it is sealed, to make sure that no one has tampered with it.
Sometimes, the technician will accompany the person into the test room to make sure that they are giving the sample correctly. The technician should explain the reason for this supervision. Urine drug screen usually come back within a few days. Some come back on the same day.
Negative may come back more quickly. A positive result may take longer, because ensuring the accuracy may require further testing. If a result is positive, a person will need to take a second test for confirmation. This will be a GC-MS test, which will provide more accurate.
A urine drug screen can quickly and effectively detect the presence of illegal or prescription drugs in the body. These screens can check for a range of drugs, including marijuana, nicotine, barbiturates, and opioids, such as heroin and methadone. Some drugs remain traceable in the body longer than others. NSAIDs are nonsteroidal anti-inflammatory drugs that reduce inflammation and relieve pain. Learn about their uses, the possible side effects, and what…. There Urine drug test result time many symptoms of opiate withdrawal, including shaking, chills, nausea, and diarrhea in some cases.
These uncomfortable symptoms can often be…. Antidepressants can help manage the symptoms of depression, but they can be difficult to stop. Find out what to expect and get some tips on managing…. What to know about urine drug screening. Urine drug test result time reviewed by Deborah Weatherspoon, Ph. Purposes and uses of urine drug screens. Share on Pinterest Drug screening can test for both illegal and prescription drugs.
Which drugs can a urine test detect? Procedure and types of urine test. How reliable are urine drug screens? Share on Pinterest Eating poppy seeds prior to the test may give a false-positive result.
Detection times. How to prepare for a urine test. Share on Pinterest It is essential to make the test provider aware of any prescribed medication. Interpreting the. Latest news New antiviral drug combo may fight off coronavirus infection. Surgical backlogs: Wire-free breast cancer localization may help.
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