I obtained a cardiac rehabilitation internship as my "capstone" to my exercise science degree. I was able to do everything they do. Monitor exercise, EKG's, write exercise prescriptions, go into phase 1 in the hospital and walk the patients that have just undergone open heart surgery, take blood pressures, you name it. I also had a few perks where I was able to view surgeries, echos, stress tests, heart caths, etc. It was a really good experience to have but I know many students have trouble obtaining these because of liability insurance. Since it was a mandatory part of my program, the school covered me.