hemodialysis technicians receive patient into treatment area, weigh them, take their temperature and blood pressure before and after the dialysis process.
in hemodialysis, your blood is allowed to flow, a few ounces at a time, through a special filter that removes wastes and extra fluids. the clean blood is then returned to your body. removing the harmful wastes and extra salt and fluids helps control your blood pressure and keep the proper balance of chemicals like potassium and sodium in your body.
hope this helps.