Table of Content
There are also cases where you might have been in a car accident or other incident where lawyers require testing for legal purposes. Drug tests are also used to test offenders who are on probation. Although companies take care to ensure their tests are of high quality before going out to an employer or testing center, problems still occur.

The line was barely there — it was so faint that it didn't even show up in photos. I took another test the next day, which came back with a much darker line and confirmed that I had COVID-19. See our Drug Detection Times Chart to get an idea of how long different substances will show up in a drug screen.
Saliva Tests
When taking the actual test, don't let it be your first piss of the day, piss a little in the toilet first, then fill the cup. “We have some of these tests in our lab that we run as medical tests, and we do not interpret the strength of the at all,” Mathers added. Plus, there are a bunch of other reasons a test line might be darker or lighter that don’t have anything to do with the actual amount of viral particles in your body, she said. The whole experience got me thinking about how confusing it can be to take a rapid test — especially if your results seem ambiguous like mine. Even if the line that appears is very faint, the result should be considered negative.
POSITIVE on a urine drug test strip is actually a preliminary positive. A follow-up lab test is required in order to confirm the presence of drugs in a person’s system. A NEGATIVE result rules out the presence of drugs above the cutoff limit, while a POSITIVE indicates there may be drugs present in a higher concentration.
Faint Line on Drug Test: Meaning and Causes
However, sometimes the result leaves them even more worried than when they started the process. When that’s the case, it may be because the test result shows a faint line. Suppose your test does come back positive, with no line showing up. In this case, you might have to take a Gas Chromatography-Mass Spectrometry (GC-MS) laboratory test to confirm the results. It is highly accurate and can detect even the tiniest amount of a specific drug.

If you cannot pass a home test there is no way to pass the lab test.... If you think I'll be ok with my own natural piss, what can I do now to perhaps make it a more sure bet that I'll come out negative. I know that I should stop working out now so that the THC in my burned fat doesn't come out. NEGATIVE TEST RESULT, which means the test has not detected any trace of that particular substance.
Trace Levels
In case of some drugs, the minimum drug quantity is rather high such as amphetamines (1000ng/ml) whereas it’s low in other drugs such as marijuana (50ng/ml). If the minimum amount is low, there will be a faint line on drug test. Since home drug test kits are strictly pass or fail, there is no in-between. When reading the test result, there should be two colored lines present. Any line, regardless of its intensity, is considered a negative.
The day before my test I ran a lot, drink a lot of water and my piss was very diluted. I have really low body fat, I work out every day and from the past days I am doing a lot of cardio. I pass 2 home drug test with a faint line first piss of the day. Btw, I know its not healthy, so dont tell me to stop for health reasons. Low detection level test may cause a faint T-line (ie. THC 20 ng/mL test, THC 15 ng/mL, COC 150 ng/mL). If you have ever taken a home drug test then you know the struggle of looking at the results and wondering if you have passed.
It is significant to understand the interpretation of drug test results to make a confident decision. The urine composition differs slightly for each individual mainly because of the medication intake, fluid consumption and overall health. The urine test result of the donor may exhibit faint lines within the time limit on some immunoassays. The home test instructions say that a line in the test area determines a negative result because it’s a pass fail type of test. Parents and drug-using employees often become unnerved, however, when the line is so faint that it’s nearly non-existent. Home drug-test kits are commonly sold online and in stores.
It makes sense that what you put in affects what comes out. Individual factors can cause a faint line to appear on a drug test. Even though you will always have to deal with faint lines you can do things to make sure your results are as accurate as possible. Tests are designed for consistent results display, but each assay is never going to have identical line darkness. It would be more accurate to compare the darkness of strips testing the same drug than different strips on a multi-panel cup. The only positive result on a drug test is no line at all.
The only thing you have to worry about if you used a cheap test is if you might have gotten a false negative. International Marijuana news, reviews and forums where you can utilize our scientific and medical articles, helping you to grow your own Cannabis. Meet expert cultivators sharing grow journals, tutorials and pictures in our gallery, while helping others answer frequently asked questions. Join 420 Magazine and our collective mission of activists promoting Cannabis awareness since 1993. Toilet urine may become diluted and has a chance of exposure to cleaning agents that may alter the result. And we'll be happy to answer any questions you may have and tailor a program to your specific needs.
There are also dozens of variables that exist outside the laboratory that play into drug testing results. THC tests are more likely to have faint lines because of components of the test itself as well as more natural substances interacting with the regeant. Keep in mind on a 12 panel drug test you are actually performing 12 assays at once. THC tests are notorious for having faint lines even for donors that have never smoked in their lives. Substances in your body, such as medication or vitamins, can also lead to a faint line. A drug test has a control line , which should always show up to prove that it is working.
For instance, testing at the right time and isolating when you get a positive result can help stop the virus from spreading as we adjust to this new phase of the pandemic. Plus, with the recent return to in-person school, emerging variants on the horizon and a potential "tripledemic" coming in fast, we'll likely be taking COVID-19 tests more and more. Positive means that the drug concentration in the urine sample is greater than the designated cut-off level for a specific drug and additional confirmatory drug testing may be needed.

Please contact the moderators of this subreddit if you have any questions or concerns. You’ll gain greater insight to the test itself, and help your company avoid possible legal issues. Those used by law enforcement often have a lower cut-off level.
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