The laboratory tests however are more precise. The cutoffs for at-home tests are frequently higher than for lab tests. Will I pass a lab test with a faint line? The tests don't check for the number of drugs in your body or urine they merely check for the presence. ANY line in the “T” area, indicates a negative outcome. It is still a negative result even if the second line is super faint. FAQs What does a very very faint line almost invisible mean? Is it positive? Otherwise, try again with another test (without drinking water) and see what result you get. If you keep getting faint lines or no lines on your test, make sure to check the points above. Most people use THC testing strips at home in order to find out whether or not the drug is present in the body below the cutoff level (this may differ from test to test).Ī faint line on a drug test is common and will always mean it is a negative result, no matter what. Regardless of how light they are, faint lines in the test zone of the sample are declared negative. If necessary, submit a list of all drugs, supplements, and energy drinks you took prior to the test.Ideally, conduct the test first thing in the morning, before drinking any water.Throw away any opened and unused tests as well as any expired tests.At the 5-minute point, consistently read the results, but disregard any results after the 8-minute mark.During testing and storage, keep an eye on independent factors, like temperature.How to Prevent Faint Lines on Drug TestsĪlthough you may encounter faint lines on a drug test, you can always take steps to ensure that your results are as precise as possible: However, it’s possible that your employer will ask for a confirmatory lab test. If your test shows a faint line, however, your employer cannot fire you for failing a drug test because the result is still considered negative. There is always a TINY amount of wiggle room in any drug test because different tests may have different cutoff levels. The cutoff level for Exploro is 50/ng per ml, so if you test below that, you are always negative. Taking over-the-counter medication that is chemically equivalent to the drug being tested.Įvery substance has a baseline (cutoff) that shows up on any drug test.Make sure to always check the expiration date. Chemical imbalances or dilution of the urine sample (for example, drinking too much water before doing the test).Not having enough THC in the bloodstream to cause a fully positive result, but enough to leave a small trace, causing a faint line.Not leaving the test strip inside a urine sample for long enough.Faint lines on drug tests can show up due to the following reasons: Because of the test's components as well as more natural substances interacting with the urine sample, THC tests are more likely to produce faint lines. Pictures source: Exploro customers What Can Cause a Faint Line on a Drug Test?Įven for donors who have never smoked, THC tests are infamous for showing faint lines. Here are some examples from Exploro customers and their tests with faint lines. THC metabolites are detected in the form of negative or positive results in at-home tests, but the quantity is not shown. Rapid tests are commonly used to determine whether a substance is present in the body in a short period of time. If you have a faint line on your pre-employment drug test, you are still regarded to have passed.ĭrug tests are used to identify whether or not a specific substance (in most cases THC) is present in a sample by looking for the drug(s) and their metabolites. ![]() A faint T-line with even a smidgeon of color is always considered as a NEGATIVE result. Over-interpreting a faint T-line is not the best practice.
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