ALCOHOL URINAL SCREENS HOW TO

The test line does not appear when the concentration of the drug in the urine is higher than the cutoff level for that test.

What Does a Positive Drug Test Look Like?Ī drug test is positive when the control line appears, but the test line does not appear. If it has a control line and a test line, then the drug test is negative. If a drug test has no control line, then you must consider it negative. Negative drug screen results happen in two situations. What Does a Negative Drug Test Look Like? As a result, drug test producers have recommendations for the time period in which you should administer these tests after suspected drug use for best results. Overall, the subject must have a certain level of drug present in their sample in order to trip the T line. These agencies typically use tests with much lower cutoff levels in order to test for drug use at any level. The Substance Abuse and Mental Health Services Administration (SAMSHA) recommends certain cutoff levels for specific drugs to reduce the number of false positives or positive tests for trace amounts.ĭrug testers such as law enforcement have zero-tolerance policies. What Causes the T Line to Appear?ĭrug tests have set cutoff levels for substances that determine whether the test is positive or negative. If a line appears in the test section but not the control section, the test is not valid. If the “C” result is valid, then the “T” section in the urine drug test results can be read accurately.įor a drug test to be valid, the control section must always have a line present once you conduct the test. Drug test strips will have a “C” and “T” section on them. The letter “T” represents the test result. A control must always be the same so that the test result can be compared to it accurately. In short, “C” stands for “control.” As with all experiments and tests, having a control result is crucial for comparing against the test. No matter what colors and results you get on a drug test, the results will be invalid if C and T are not read properly. The first most important aspect of reading drug tests is to understand what C and T mean on a drug test strip. Once you understand how the test works and start memorizing the colors, you’ll become an expert. Reading and understanding drug test results can be difficult at first. We’ll also talk about C and T on drug tests so you can achieve accurate results. In order to support testers and their efforts, we’ve created a brief guide with a drug urine test color chart complete with explanations on what drug test colors mean. A great way to quickly learn is to use a urine drug test color chart for reference.

ALCOHOL URINAL SCREENS HOW TO

To quickly get started with incorporating urine drug tests into your testing process, it helps to have a solid understanding of how these tests work and how to read them. If that’s not complicated enough, different tests can also have unique ways to read the results. Urine drug tests can come with a range of abilities, testing anywhere from one to several different drugs, each one using its own stick.

Whether you’re new to drug testing or this is the first time you’re incorporating urine tests into your process, reading the results can be difficult.

Alcohol urinal screens