hi,my names joe,im 17 and really active, i skate at least 3 hours a day. Ima have open heart surgery on July 8. I have a really important question thats haunting me, and i gotta knw from a doctor's perspective. i smoked weed 4 days ago with a friend, and know im wondering if it will have any affect on the surgery. im really worried, and would love to knw if I'll be okay. Im not scared of the surgery, just scared ill wake up when they cut my chest open!