Which one of the following statements is corr | vedclass

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(C) Hemodialysis is a procedure used to remove excess urea and other nitrogenous wastes from the blood of patients with kidney failure.$1$. During thi

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The dialysis unit contains a coiled cellophane tube surrounded by dialysing fluid.

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(C) Hemodialysis is a procedure used to remove excess urea and other nitrogenous wastes from the blood of patients with kidney failure.$1$. During this process,blood is drained from a convenient artery (not a vein) and pumped into a dialysing unit.$2$. The dialysing unit contains a coiled cellophane tube surrounded by a dialysing fluid,which has the same composition as plasma except for the nitrogenous wastes.$3$. The cellophane membrane is porous,allowing the passage of molecules based on concentration gradients,thus facilitating the removal of urea and other wastes.$4$. Therefore,statement $C$ is correct,while others are incorrect because blood is taken from an artery,the membrane is porous,and hemodialysis is primarily for kidney failure,not liver failure.

Which one of the following statements is correct with respect to Hemodialysis?

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