Honestly, I think study abroad is overrated if your primary goal is getting into medical school. At baseline, students already feel do not have enough time to coordinate the coursework and experiences they need to have a passable application by the time they reach junior year. Many take gap years after graduating to continue padding their CV.
While I do think it is valuable to your self-development/cultural awareness to travel and see how other countries organize their healthcare and the society around it, that wouldn't really be what you're studying in Bologna, Italy. You will (hopefully) be taking all the same classes you would be taking at home, lest the study abroad experience itself becomes completely nonsensical. I promise you, cells are cells everywhere and the information itself will be exactly the same.
Separate business and pleasure. Absolutely travel if you have the opportunity to do so, but there's no reason to make it a resume line. I highly, highly doubt anyone will think you got any real work done there, anyway. It is an opportunity for underage, well-to-do students to drink and party in Europe under the pretense of getting an international education... which you can do for far less than what you would be paying in tuition (and with less probability of getting in trouble in a way that reflects poorly on you as a student). Go to school, take a vacation with friends if you can. Just my 2c.