1 hit but there is more to it then that, in order to fail a drug test you must reach more then 50 nanograms of delta 9 tetra cannabinol or thc. A couple hits a week can't bring your levels that high. If you smoke a a few bowls you'd be up in the 100-200 nanograms range for at least 2 weeks. Cannabis has the longest half life of all illegal drugs if your being tested just stay clean
28 days
If you smoke it occasionally it will remain in your system for up to 10 days.If you smoke marijuana on a regular basis it will stay in your system for as long as 45 days, and if you smoke marijuana at a constant pace, it can stay in the body for 90 days. Marijuana is fat soluble. It stores in the fat cells of the body, the brain, the liver, the kidneys, in other words the major organs.
Heroin usually is cleared from the body in 2-3 days.
a maximum of 30 days. however, drinking 2 gallons of water a day will run the THC out of the body much faster. (1 week)
Probably a week or 2. THC can stay in your body for up to 28 days if you use it almost daily.
it will aprox stay in your body for 12 days depending on how much you exercise.
Usually about 30 days, more if you are a person with more fat on your body.
what i was told by my doctor, was it only stays in your system for a few days after you stop taking it
It depends on how much you have had. Your body gets rid of one unit of alcohol per hour
Cocaine will generally not stay in your system for more than 3 days.
5 days
two days
4 days
28 days
3 days
1 to 10 days
Yes, even months.