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| Haemodialysis |
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| If the kidneys are so impaired by disease or injury that they are unable to excrete nitrogenous wastes and regulate pH and electrolyte concentration of the plasma, the blood must be filtered by an artificial device. Such filtering of the blood is called Haemodialysis. |
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| Haemodialysis in simple terms means cleaning the blood and that is exactly what this treatment does. |
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| Dialysis means the separation of large particles from smaller ones by using a selectively permeable membrane. Blood is circulated through, a machine, which contains a dialyser, also called an artificial kidney. A tube connects it with the patients radial artery. The blood is pumped from the artery through the tubes to one side of the semi permeable dialysing membrane made of cellophane sheets. The other side of the membrane has a continuous flow of the dialysing solution. All the waste products, such as urea, creatinine pass from the blood into the dialysis solution. After passing through the dialysis tubing, the blood flows back into the body of the patient. Thus the blood is purified to the standard levels. |
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| The blood that passes through the artificial kidney is treated with an anticoagulant to prevent clotting. |
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