Haemodialysis

Clinical Nutrition
Lesson 30: Renal disease

Haemodialysis

Haemodialysis is a replacement therapy; it is a method for removing waste products from blood when the patient's kidneys suffer from irrevocable renal failure. This procedure is accomplished with a mechanical device sometimes called an artificial kidney, which is connected to the patient with an extracorporeal blood circulation device of lines and filter.

A diffusion process allows the exchange of particles between two compartments, one for blood and the other for dialytic fluid. These are separated by a semi permeable membrane, which is assembled within the filter. In this way, contaminants go from blood flux to dialytic fluid and are removed.
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Last modified: Monday, 7 November 2011, 6:07 AM