How long for THC to get out of the system?

How long does it take for thc to get in your system?

• got a drug test tomorrow... how long might thc be to get in my system if I take 2 hits of a joint?

• Answer:

  Probably less than a week. You should drink about 4 glasses of water 4 hours before the test. Take a vitamin b2 and 1 more glass of water an hour before the test if possible. You wouldn't likely fail if that is all you smoked if you do what I said no matter when it was. Drinking the water and urinating causes the metabolites in the blood to be flushed out. Eating the B2 colors the urine to make it look normal. Drinking all that water also dilutes the urine. If you don't do that the kidneys will absorb much more water out of the urine and it will be much more concentrated. It doesn't really help to drink or anything else before about 4 hours before the urinalysis. They test for the metabolites and they are slowly added to the blood. They are quickly removed with about half being removed every couple of hours. That is why it is pointless to drink before the day of the test. THC is stored in the fat but the metabolites they test for are in the blood and then the urine after the kidneys "filter" them out. They aren't really filtered but I don't want to go into how the kidneys function.