There are few different types of urine drug tests – some are more precise than others – but all of them have one thing in common: a urine sample is tested for the presence of drug metabolites. Seems simple, but the more expensive the test, the more complex the procedure. The most accessible testers are panel tests – a very small amount of urine exposed to a chemically treated paper that changes color if any specific metabolite is present in the sample. Lab tests like EIA (Enzyme Immunoassy), RIA (Radioimmunoassy) and GC/MS (Gas chromatography/ mass spectrometry) are more accurate than panel tests, but also is more expensive. Overall, a urine test is pretty easy to pass as long as you prepare yourself properly for it.

Breathalyzer tests are harder to pass since there is no leeway for altering the test results. Mostly, this kind of testing is used primarily to determine alcohol use. When you drink, alcohol is absorbed through stomach into the blood stream. When you breathe out the lungs exchange carbon dioxide for the oxygen in the blood, so some amount of the consumed alcohol comes out with the exhalation, which makes it very difficult to modify the test results to the desired outcome.

Besides being difficult to beat, breathalyzer test can tell how much and how recent the substance was consumed, whereas urine test cannot indicate the time or frequency of usage. So if you get scheduled for a urine test, do not get bummed out – get ready to beat this thing and carefully choose a detox product best suited for your needs.