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Hemodialysis |
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dialysisor hemodialysisProcess of removing blood from a patient with kidney failure, purifying it with a hemodialyzer (artificial kidney), and returning it to the bloodstream. Many substances (including urea and inorganic salts) in the blood pass through a porous membrane in the machine into a sterile solution; particles such as blood cells and proteins are too large to pass. This process controls the acid-base balance of the blood and its content of water and dissolved materials. hemodialysis [‚hē·mō·di′al·ə·səs] (medicine) The filtering of toxic solutes and excess fluid from the blood via an external membranous coil placed between the blood and a rinsing solution. Hemodialysis a method of extrarenal purification of the blood in acute and chronic renal insufficiency. During dialysis, toxic metabolic products are removed from the body, and the impaired water and electrolyte balances are normalized. Dialysis is effected by exchange transfusion of blood (simultaneous massive bloodletting with transfusion of the same amount of whole blood), by washing the peritoneum with a salt solution (peritoneal dialysis), and by washing the intestinal mucosa with moderately hypertonic solutions (intestinal dialysis). Use of an artificial kidney is the most effective method of dialysis. A. P. RZHANOVICH Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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