Sometimes it takes a lot more effort to do a research that will help you get what you want. A careful examining of facts will serve you good, rather than a quick glance through.

- Hi there, I have a problem. I had to take a test two days ago, and they just told me that I failed. Now, it’s no surprise for me, but I told them that I was an unintentional passive user – I was at a party where a lot of people smoked, and there was no way I could stop breathing! So now they tell me I failed and will get fired!
- The thing is, if you were exposed to a second-hand smoke, your toxin levels are extremely low, and if it was only one time thing, the level would be low enough not to trigger the test. If you tested positive, it means your levels were pretty high.
- Oh, they can see at what level I was? I thought it was just positive or negative…
- It is, but the test cannot detect toxins that are below cut off levels. For example, the sensitivity of a test can be 15 ng/ml or 50 ng/ml. A person exposed to a second hand smoke on a one-time occasion will have a toxin level of approximately 5 ng/ml, so the test will not pick it up and give negative results. A habitual user’s toxin level will be so above 50 that there is no way one can claim to never have smoked before. If necessary the lab can do further testing and see exactly what the levels of the specimen are.
- Ok, I see. So hypothetically, if a smoker needed to pass a drug test, what he would need to do.
- Oh, there is a great variety of products that he can use. For example, a Fast Detox kit would be one of them…

This way a little more research can lead to a successfully passed test, without having to come up with an explanation on why you failed.