Artificial kidney class 10

• When a person has kidney failure, the waste products are removed by the help of artificial kidney or haemodialysis. • Artificial kidney is a physico - chemical device , based on the principle of separation of smaller solutes or ions from larger ions with the help of ultrafilter . • The dialysis machine consists of a tube of semi permeable membrane which is coiled to the tank. • This tank is filled with dialysing fluid i.e. glucose, water and salts has the same osmotic concentration as that of blood . • As the patient's blood passes through the solution nitrogenous waste products , phosphates and sulfates are excluded . • The clean blood is pumped back to the vein of the patient's arm.This whole process takes 3-4 hours.

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