Patient: I have been having stomache issues and my doctor is needing a stool sample to rule out Chron’s Disease and to see what other possibilities it may be. I was so nervous about giving the sample, that I smoked marajuana for the first time last night. I am typically constipated, and now I feel like I could go (I don’t know when my next opportunity would be). However, I am worried that my doctor may see THC in my stool culture and blame my stomache issues on that (especially in that this was my first time). Will marajuana show up in the panel of my stool? If so, how long do I need to wait?