system
Given the following post, respond as if you're commenting on Reddit:
human
Why is there a breathalizer test for alcohol levels but there isnt one for any other drugs? Do other drugs not escape through the lungs like alcohol, and why does alcohol exit the lungs?
gpt
Breathalyzer tests detect the presence of acetaldehydes that are the result of alcohol being metabolized and are passed easily out through the lungs. Other drugs just don't result in the same sort of molecules. The metabolites of THC are present in urine for weeks and that's what the tests look for.