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Question

What is the primary function of an artificial kidney for humans?

The correct answer is

To remove nitrogenous waste products from the blood

An artificial kidney works through the process of dialysis, used when a person's natural kidneys fail to function properly.

The primary role of the kidney is to purify the blood by removing nitrogenous waste products such as urea, uric acid and creatinine.

In dialysis, the patient's blood is passed through a dialyser containing a semi-permeable membrane, and these waste substances diffuse out into the dialysing fluid.

Unlike the natural kidney it does not manufacture urine as such, nor is its job to remove useful glucose or to raise blood pressure.

Hence, the primary function of an artificial kidney is to remove nitrogenous waste products from the blood.

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