You don't.
72 hours
5days
yes, but if you drink a few liters of water, it should be out in a few days...
3-4 weeks
About 15 days.
not sure about blood, but urine is 2 weeks to 3 months, depending on how much and how often you smoke.
It could stay in your system anywhere from a week to 3 months depending on your build and how much you smoke.
This will depend on when you stop smoking the marijuana. If you continue to smoke every single day, the THC will remain in your urine until you stop smoking.
14 Days
Methamphetamine smoke is NOT detectable on blood urine or any other drug test if you are not inhaling this smoke. Second hand meth smoke. Please!
30 minutes
generally it takes about a month to clean weed out of your system, yet it all depends on how much you smoke and how often you smoke that amount.
If you only smoke a few times a month, 30 days after last consumption. If you smoke multiple times a week, up to 90 days.