MEDICAL
KIDNEY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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In dialysis it is important to maintain a concentration gradient between the blood and the dialysing fluid. Why?
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so diffusion continues to occur
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so osmosis continues to occur
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so wastes stay in the blood
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None of the above
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Explanation:
Detailed explanation-1: -As the dialysis fluid contains a glucose concentration equal to a normal blood sugar level, this prevents the net movement of glucose across the membrane as no concentration gradient exists. This is very important as the patients’ need to retain glucose for respiration.
Detailed explanation-2: -The concentrations of solutes (for example potassium, phosphorus, and urea) are undesirably high in the blood, but low or absent in the dialysis solution, and constant replacement of the dialysate ensures that the concentration of undesired solutes is kept low on this side of the membrane.
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