no i have personally done this every time i have taken a test and passed. but you can get in trouble for having a diluted sample.
It really depends on the amount of cocaine that was taken, and the strength of the test. If a lab test probably caught.
If you deliver a diluted sample, they'll flunk you just for the dilution.
NO
sometimes!
A diluted urine drug test is one where the sample was diluted. It happens in two ways--you drank too much water to make yourself pee (DOT's standard says drink no more than 40 ounces of water), or you put water in your sample after you peed it out.A negative diluted test says "no drugs in this sample passed the test thresholds, but it was diluted so there MIGHT be drugs in here." Basically, a diluted negative is a test failure.
Nope!
If sent to a lab, they will KNOW it's been diluted. You will automatically be considered guilty of being dirty....If it is not sent to a lab and you get your results right then (ex: a drug test at an employment agency...), you can pass easily -
Lab Request
Samples sometimes need to be diluted to bring their concentration within the range of the measurement method, to prevent interference or saturation of the detector, or to ensure that the sample is compatible with the analytical equipment being used. Dilution can also help reduce matrix effects and improve the accuracy of the analysis.
Specimen
Get a lawyer. There is no way to determine in standard practices whether a sample is diluted or not. A full laboratory spectral analysis of the sample would need to be conducted, and this is neither cost effective nor judicially prudent without probable cause. Not to mention with current federal lab delays, it would take months for him to obtain the results.
specimen ... dissection