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Don't stress yourself. You will lead yourself to more confusion. Take it easily.hey, how does dialysis machine work?
im sooooooooooooooooooooooooooooooooooooo stressed i have biology and french continuous writing on the same day!! my hand will fall off!!!!
See, for dialysis machine it is more like "artificial kidney" it filters and removes the urea and salt by this principle:
The blood coming out of the vein is directed the dialysis machine. The dialysis machine contains dialysis fluid, which is in such a compositon that allows urea and salts to diffuse into but not water and use molecules like glucose. Because blood has higher concentration of urea and salts, they diffuse from blood to the dialysis fluid. So the blood now has less urea and salt concentration. This is returned to a chamber that removes blood clots and maintains the temperature , this prevents the person having some kind of shock when blood returns to him. So now the blood is returned back to his vain, in a more purified form.