How much you know about DIALYSIS!

hmmm.... Most of you should know that dialysis is all beacuse of kidney failure. But why?

Kidney failure may be due to overworking of kidney cells and causing them to die. They will not be able to:

1) Remove excretory waste like urea, ammonia and uric acid (Poison blood is not removed)

2) Maintain pH and composition of blood

3) Act as an osmoregulator

Haemodialysis

Properties of dialysis machine

1) Highly folded convoluted tubes: Increase surface area for diffusion of substances

2) Small holes present in tubes: Allow only small particles such as urea and glucose to pass though and not large protein molecules or red blood cell

3) Flow of dialysate is opposite to flow of blood: Maintain a concentration gradient to allow efficient diffusion of urea out of blood

4) Glucose and Salt in correct composition: To allow only substances above that concentration to diffuse out.

Peritoneal Dialysis

At the end of the treatment, urea and excess mineral salts will be found in the solution
- Urea is able to diffuse into peritonium and thus will allow this treatment.