A medical procedure to remove fluid and waste products from the blood and to correct electrolyte imbalances. This is accomplished using a machine and a dialyzer, also referred to as an “artificial kidney.” In hemodialysis, blood is pumped out of your body to a machine, and returned to your body by tubes that connect you to the machine. It can be done in both acute or chronic situations. This procedure requires some form of access to patient’s blood circulation either through a catheter placed in a central vein or by creation more permanent access called fistula. Once started one needs dialysis sessions 2 to 3 times per week each lasting 4 to 5 hours depending on the need under the care of a kidney Specialist.