What is Dialysis?

In medicine, dialysis (from Greek dialusis,"διάλυσις", meaning dissolution, dia, meaning through, and lysis, meaning loosening or splitting) is a process for removing waste and excess water from the blood, and is used primarily as an artificial replacement for lost kidney function in people with kidney failure. Dialysis may be used for those with an acute disturbance in kidney function (acute kidney injury, previously acute renal failure), or progressive but chronically worsening kidney function—a state known as chronic kidney disease stage 5 (previously chronic renal failure or end-stage renal disease). The latter form may develop over months or years, but in contrast to acute kidney injury is not usually reversible, and dialysis is regarded as a "holding measure" until a kidney transplant can be performed, or sometimes as the only supportive measure in those for whom a transplant would be inappropriate.

The kidneys have important roles in maintaining health. When healthy, the kidneys maintain the body's internal equilibrium of water and minerals (sodium, potassium, chloride, calcium, phosphorus, magnesium, sulfate). The acidic metabolism end-products that the body cannot get rid of via respiration are also excreted through the kidneys. The kidneys also function as a part of the endocrine system, producing erythropoietin and calcitriol. Erythropoietin is involved in the production of red blood cells and calcitriol plays a role in bone formation. Dialysis is an imperfect treatment to replace kidney function because it does not correct the compromised endocrine functions of the kidney. Dialysis treatments replace some of these functions through diffusion (waste removal) and ultrafiltration (fluid removal).

Questions and answers on "Dialysis"

my father is suffering from Kidney damage.. he is having excess of Ca & Ph in blood .. can a dialysis be avoided using medication? He was having...

doctor1 MD

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Since he has kidney failure he is having electrolyte disturbance, also haemoglobin is low because kidney cannot produce...

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It seems that since I have started dialysis I m gaining dry weight and also after having dialysis my stomach gets so bloted and cramping. It has...

doctor1 MD

The symptoms you have reported suggest excessive removal of fluid during dialysis.That may be happening because you are gaining more weight in...

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Hi sir my mom is a Dialysis patient. she is undergoing dialysis from last 14 months. it was okay for these days but suddenly she is becoming very...

doctor1 MD

Dizziness is a very common complaint in patients undergoing dialysis.
Its because of low Blood pressure if the dialysis machine removes excess...

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