EXCRETORY SYSTEM
KIDNEY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Waste is pumped out of the blood and into dialysis fluid.
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Dialysis fluid is mixed with blood and then pumped back into the patient.
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Blood is pumped into a machine, where it is enriched with oxygen and glucose.
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Fluid is pumped through the machine and waste moves out of the blood into the fluid by diffusion.
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Detailed explanation-1: -The way this works is through a process called diffusion. In the blood of the hemodialysis patient, there is a high concentration of waste, while the dialysate has a low concentration of waste.
Detailed explanation-2: -Diffusion dialysis (DD) is an ion-exchange membrane (IEM) separation process driven by concentration gradient. Since the driving force for the separation process is mainly concentration gradient, diffusion dialysis is known as a spontaneous separation process. DD is a membrane separation process.
Detailed explanation-3: -One needle will slowly remove blood and transfer it to a machine called a dialyser or dialysis machine. The dialysis machine is made up of a series of membranes that act as filters and a special liquid called dialysate. The membranes filter waste products from your blood, which are passed into the dialysate fluid.
Detailed explanation-4: -When the kidneys fail, dialysis can do their job of removing harmful substances and excess water from the body. This is done with the help of technology that makes use of the physical principles of diffusion, convection and osmotic pressure.
Detailed explanation-5: -Fresh dialysate from the machine enters your dialyzer throughout your treatment. Impurities are filtered out of your blood into the dialysate. Dialysate containing unwanted waste products and excess electrolytes leave the dialyzer and are washed down the drain.