describe the process of dialysis with structure
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Hemodialysis removes wastes and water by circulating blood outside the body through an external filter, called a dialyzer, that contains a semipermeable membrane. The blood flows in one direction and the dialysate flows in the opposite.
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Answer: Haemodialysis is performed when the concentration of UREA exceeds the normal requisite level (18 - 40mg/100ml of blood). The condition being called URAEMIA. The setup is called a HAEMODIALYSER.
Blood from a suitable vein is taken into a cellophane tube (after adding an anticoagulant like HEPARIN) which passes through the dialysing fluid. After dialysis the blood is pumped back after adding an anti-anti-coagulant (in this case - ANTIHEPARIN).
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