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The principle behind dialysis is ________(a) Adhesion(b) Cohesion(c) Capillary Action(d) Reverse – OsmosisThis question was posed to me in an interview.My enquiry is from Dialysis in division Rehabilitation and Recovery of Clinical Science

Answer» CORRECT option is (d) Reverse – Osmosis

The explanation: It is the MOVEMENT of SOLUTES from the area of high concentration to low concentration through a semi permeable membrane. Dialysis is done with the electrolytes flowing through one side and the blood flowing in the opposite direction. The two fluids FLOW in opposite directions across a semi permeable membrane which causes a pressure to be created and the WASTES flow out from the blood to the dialysate.


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