I have a medical exam coming up for employment with norwegian cruise line. they are doing a stool sample and i'm wondering if thc can show?

If they are testing for THC, it is more likely that they would ask for a urine sample than a stool sample. THC could show on a urine sample up to three weeks later, depending on how heavy of a THC user you are. Good luck.

No. THC is usually tested in urine. Marijuana is a psychoactive drug and will mess with your brain and damage your lungs among other injury. MJ users are called stoners for good reason. Quit using it while you are ahead. Wish you good health!