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A urine drug test is used to detect the presence of illegal and prescription drugs in urine. In a urine drug test, a sample of urine is sent to a lab. A tester analyzes the urine for certain drugs or their metabolites.
Metabolites are byproducts formed by the body after it processes a drug. Otherwise, the of the drug test might be inaccurate. As a result, the tester will be unable to properly detect the presence of drugs in the urine. This article explains the potential reasons of urine dilution and how to get accurate. Urine can become diluted due to many reasons. It can happen accidentally. Many people recognize the importance of staying hydrated. If a person is unable to provide enough urine, they might have to return or repeat the test.
Some people might drink lots of fluid beforehand to ensure that they can give a urine sample.
Some prescription medications have a diuretic effect. They increase urine production, resulting in diluted urine. How much water will dilute a urine sample kidneys remove waste from the body by making urine. Additionally, testers can determine if the urine is diluted by referring to measurements called validity checks. These checks include urine creatinine and specific gravity. Your kidneys remove creatinine through the urine. The amount of creatinine in your urine indicates its concentration. Urine specific gravity indicates the concentration of urine.
It compares the water content to the amount of substances in the urine. Normal urine has a specific gravity of between 1. If the urine is diluted, the specific gravity is between 1. An immunoassay IA is a drug test that uses antibodies to detect the presence of certain drugs. Antibodies are proteins that bind with antigens, or foreign substances. In this case, the antigen is the drug. In an IA, the tester adds the drug and drug-specific antibodies to the urine. If the drug is already in the urine, it will compete with the added drug to bind with the antibodies.
This reaction means the sample is positive. The sample will be considered negative. An IA is inexpensive and quick. This means it can yield false positive or false negative. In GC-MS, a gas is added to the urine sample. The gas interacts with the substances in the urine, causing them to separate. The tester uses a machine called a mass spectrometer to detect the separate compounds.
GC-MS is the standard test used for follow-ups. Other types of chromatography may use liquid to separate the compounds. Some people might drink lots of water to stay healthy or ensure they can give enough urine. To prevent urine dilution, limit water and diuretic intake before administering the test. You can also collect urine in the early morning or before work. A urine drug test, also known as a urine drug screen, is quick and painless.
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What Causes Diluted Urine in Drug Tests and How to Prevent It