Dr. Keshav Das Sadhwani, MBBS, MD (Medicine), DNB (Nephrology), Consultant (Nephrology), 35 Years in Nephrology Speciality, Manipal Hospital, Ghaziabad
Hemodialysis is a treatment to filter waste products and fluid from the kidneys. When the kidneys are nearly 90% failed and become unable to perform their normal functions, waste material starts to collect in the blood. Dialysis takes over a small part of damaged kidneys to filter excess water and waste products.Hemodialysis maintains blood pressure and retains the balanced amount of minerals like sodium, calcium, and potassium in the blood. In this process blood filters through the dialyzer outside the body.Before hemodialysis, access is made in the patient's body near the artery or vein for the dialyzer. This insertion helps in reaching the machine to the blood which process clean blood to the body and returns impure blood through a separate pipe.