This is part two of my interview with John, who worked as a supervisor at a drug testing lab. You can read part one at Tips in Passing a Drug Test – Part I.

JOHN: Yes, the color of the urine specimen (or rather, the lack of it) is the first most obvious indication of a dilution attempt. And even though we’re discussing dilution here, I should probably add that even before that, the temperature of the specimen is recorded to rule out the possibility of substitution. But assuming that the specimen passes the temperature and color test, and that it tests negative for THC metabolites, then additional tests are run to measure its specific gravity (sometimes referred to as relative density). To put it simply, the density of normal, undiluted urine falls within a certain range. Diluted urine will have very little density to it. So if the measured density of the urine specimen is below the normal range reference, a lab will flag it as diluted urine.

As for the specific elements that are measured in a urine drug test, there is only one: creatinine. Not all labs measure this, but the lab that I worked for did and I would say that most do. And as I know you are aware, creatinine levels that are below the normal range are yet one more indication of a diluted urine sample, regardless of whether or not it passes all of the other phases of the test.

DEE: So besides the obvious stuff, are there any specific tips in passing a drug test that you can recommend to people?

JOHN: Well, I think that what you recommend in your book about diluting at home more than adequately addresses all the points I’ve already mentioned, but there are a couple of things that I’d like to elaborate on if I may. One of the most important tips in passing a drug test that you mention yourself is the use of a B-complex vitamin supplement to put some color back into one’s urine after diluting. But the specific B-vitamin that provides the yellow color is B-2, so that’s all a person really needs to buy. And I would actually recommend that people take a higher dose than you recommend, like perhaps 5X the recommended daily dose on the label, or about 50-100mg. I realize that you’re probably trying to be conservative when you tell people to take double the daily recommended dose, but for just one day it’s really quite safe to take the higher amount. And a higher dose will turn urine yellow much quicker, and will also help ensure that it’s still providing color if someone has a long wait at the lab.

The second point I’d like to mention is the use of aspirin. I was impressed that you didn’t claim that this was effective for passing a drug test, but I do think that in the next edition of your book it would be a good idea to leave out any mention of it at all. There is nothing in aspirin that would have any effect in passing a urine test, and its use can be quite dangerous to some individuals. Aspirin is a much more serious drug than many people realize, particularly when it’s taken on an empty stomach. It causes small bleeding in the lining of the stomach wall, which can cause serious complications. So, since it isn’t helpful for passing a drug test anyway, it should be avoided unless it’s clearly indicated for an inflammatory condition.

DEE: Point taken. I do caution people about using aspirin, but if you say it’s not even helpful then I definitely will remove that the next time I revise my e-book. Well, I think we can wrap up and I won’t take up any more of your time, unless there’s something you’d like to add.

JOHN: I think that’s about it. Except that I would just really like people to know that it’s possible to pass urine test if they dilute properly, and that they shouldn’t necessarily see a drug test as a death sentence to their career. You’re providing a great service to people, Dee. Good luck with getting your message out.

DEE: Thanks for the encouragement and pat on the back – it means a lot to me coming from you. And good luck to you too in your new job! Thank you VERY much for taking the time to do this interview with me, John.

JOHN: It’s been a pleasure.

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Recommended Reading

• How to Pass a Drug Test
• Drug Testing Urine – What It Takes to Pass Every Time
• How to Pass a Drug Test for Marijuana – All About Dilution
• Urine Drug Tests – Your Best Options for Passing
• How to Pass a Urine Drug Test – The Basic Methods Explained
• Tips In Passing A Drug Test
• How To Pass A Urine Test