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Jawapan Paling Bijak!
The blood from the artery in the patient's arm flows through the dialysis tube.

waste products(urea and excess mineral salts) and water diffuse out from the blood through the semi-permeable membrane of the tube in to the dialysis fluid.

the substances are removed by the dialysis fluid in the dialyser 

the filtered blood is then flowed back into the veins of the patient

this process is repeated several times for four to five hours.
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