• Created by: Kenlie
  • Created on: 15-07-16 17:09
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  • Dialysis of the kidney
    • Is the artificial process of eliminating waste (diffusion), and unwanted water (unfiltration) from the blood.
    • Dialysis is necessary as blood is filtered each day, we could live if waste products are not removed from the body.
    • Two types of dialysis.
      • Hemodialysis
        • Blood goes through, and goes through a machine that filters the blood and into the catheter which is inserted into the vein, which is inserted into an artificial kidney.
          • Usually takes 3-4 hours, but the duration of each session depends on how well the patients kidney works.
      • Peritoneal dialysis.
        • A sterile (dialysate) solution rich in minerals and glucose is run through a tube into the peritoneal cavity, the abdominal body cavity around the intestine, where the peritoneal membrane acts as a semi-permeable membrane.
          • Two principles:
            • 1. Continuous ambulatory peritoneal dialysis (CAPD):  Which does not require any machinery which is done by the patient or caregiver.
            • 2.  Continuous cylic peritoneal dialysis (CCPD): A machine does the dialysis exchange, generally done at night whilst the patient is sleeping.
    • When your kidneys fail, dialysis keeps your body in balance by:
      • 1. Removing waste, salt and extra water to avoid them building up in  the body.
      • 2. Keeping a safe level of certain chemicals in your blood e.g. potassium.
      • 3. Helping to control blood pressure.


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