The previous poster is correct. A pre-employment urinary analysis generally uses the same technology available in the over-the-counter variety. In fact, they usually give you results almost instantaneously, just like the at-home tests. That is unless you test positive for da herb'.

That being said, if you tested negative two weeks prior to the actual test, I see no cause for concern. Also, there are generally some tricks you can use to give you 'a little boost', if you will.

+Drink at least 64oz of water 3-4 hours before the test--this will dilute your urine, making it more difficult to detect THC. Too much water however, will also be detected and raise a red flag. This will Causeyou take the test over again--not good.

+When you urinate into the cup, make sure that you fill the cup 'mid stream'. Sediments settle at the bottom of your bladder, therefore the first bit of urine secreted from your body will have the most particles.

My last bit of advice, quit wasting money on at-home tests! If you've tested negative already, just stay away from the herb for two weeks and think about how high you'll be when this is all done with. Over a month absence from cannabis will drastically reduce your tolerance. You'll save money on herb!

Oh, and my last last bit of advice, take everything in the drug testing forums with a grain of salt. I've seen more bullshit in these forums than on fox news. If honest readers followed all of the advice presented on cannabis.com, then 90% of them are ill-informed and probably failed the test. People will try to tell you that there are magic formulas or gimmicky tricks to clean your system in a very short time, that shit fails all the time, and if they do work, its usually because of a variable not even under discussion.