How do you pass a urine test if you smoke marijuana?

Passing a Drug Urine Test

Normally, marijuana will "stay in your system" for 3 1/2 to 4 weeks. Unfortunately, there is no 100% effective of "hiding" cannibis in a urine drug anaylsis. However, some of the more popular ways of tricking urine drug screens are detoxilyzers (sold at head shops), high dosage of B12 vitamins, jelly preservatives mixed in a gallon of water, and large amounts of pickle juice, a medication called "uristat" plus LOTS of water.

DON'T SMOKE WEED DUMB@$$

Another Answer..

You should be fine. Depending on your weight, just drink plenty of water so you can flush the THC out of your fatty tissues. Smoking weed is completely alright just get your stuff done, don't be a lazy stoner :)