Want this question answered?
Urine, blood or breathalyzer tests
Yes, you can purchase an at home breathalyzer test. You can usually find these at your local retail stores, these tests can cost anywhere between $19.99 and $60.00.
No it can not.
I saw an episode of Mythbusters where they tried to beat the breathalyzer using tactics rumored to lower the reading. The results of their tests showed that none of the products worked except one (of which I can't remember the name). It actually made the breathalyzer read that the person had an incredibly dangerous amount alcohol in their blood. They did not try medication, but it is safe to say that there is no way to reduce breathalyzer results if you have had too much to drink.
There are several services that provide breathalyzer tests. You can install a test in your teen's car but there is no guarantee they will use it.
Yes, a few stores carry home breathalyzer tests. www.alcohol-breathalyzers.com, www.bestbuy.com, and www.personaltesters.com sell personal units. You can purchase at home breathalyzers online. Some are pretty costly. There is also a key chain breathalyzer sold at Bed Bath & Beyond.
There are two tests run on a sample: a "screening" test and a "confirmation" test. Naproxen will throw false positives for THC on screening tests, but confirmation tests can tell the difference between Aleve and weed.
Protonix - non narcotic prescribed for IBS & stomach upset can cause a false positive for canibis/marajauna in some drug tests
Caffeine will not cause a false positive in drug tests.
No
Breathalyzer tests are carried out when officers think a driver has been drinking or if someone gets taken to hospital completely drunk so be wise people
The officer can require you to perform field sobriety tests and submit to the breathalyzer on the scene. If you blow above .08 BAC you will be detained and taken to the station to submit to another breathalyzer or possibly a blood draw.