Those with end stage renal disease (ESRD) rely on dialysis equipment to clean their blood regularly so they can try to lead a normal life. The life of the dialysis patient is dependent on the hemodialysis technician and the equipment that cleanses the blood of toxins. You need to have the passion to help others if you want to take this path. Read about this career or talk to a hemodialysis technician to get a grasp of the job. Mental and physical strength is key. My websites: dialysis certification