If you want to learn the functions of various medical components, then you require a professional course. One thing to note is that, if you want to make a career in running medical equipment in various hospitals, then knowing only the functionality doesn't help. You must also know where a problem occurs in each of those instruments. You must know the repairing procedure of those instruments. Only then, will you be able to get a job in the healthcare industry. There is a high demand of such knowledgeable trainees in public hospitals and private nursing homes. In fact, at the end, you will be taken to private pathological clinics and nursing homes. You will get a hands on training session for a short period on the medical instruments. Although the instruments will be only replicas of the original instruments. This is to prevent the damage of such costly medical apparatus.