(a) What is meant by dialysis ? What type of patients are put on dialysis ?
(b) Explain the principle of dialysis with the help of a labelled diagram.
(a) What is meant by dialysis ? What type of patients are put on dialysis ?
(b) Explain the principle of dialysis with the help of a labelled diagram.
(a) Once kidney function goes below 10-15% of normal function, the blood fills with toxins and fluids, endangering the life of the person. The dialysis treatment replaces the kidney’s function by cleaning the blood from toxins and draining excess fluids from the body.
Only patients with kidney failure are put on dialysis.
(b) Principle of Dialysis: The blood from an artery in the patients arm is made to flow into the dialyser of a dialysis machine made of long tubes of selective permeable membrane (like cellulose) which are coiled in a tank containing dialysing solution. The dialysing solution contains water, glucose and salts in similar concentrations to those in normal blood. As the patient’s blood passes through the dialysing solution most of the waste such as urea, potassium and creatinine present in it pass through the selectively permeable cellulose tubes into the dialysing solution. The clean blood is pumped back into a vein of the patients arm. Dialysis is a long process requiring 3-5 hours, 3 times a week.
(a) Once kidney function goes below 10-15% of normal function, the blood fills with toxins and fluids, endangering the life of the person. The dialysis treatment replaces the kidney’s function by cleaning the blood from toxins and draining excess fluids from the body.
Only patients with kidney failure are put on dialysis.
(b) Principle of Dialysis: The blood from an artery in the patients arm is made to flow into the dialyser of a dialysis machine made of long tubes of selective permeable membrane (like cellulose) which are coiled in a tank containing dialysing solution. The dialysing solution contains water, glucose and salts in similar concentrations to those in normal blood. As the patient’s blood passes through the dialysing solution most of the waste such as urea, potassium and creatinine present in it pass through the selectively permeable cellulose tubes into the dialysing solution. The clean blood is pumped back into a vein of the patients arm. Dialysis is a long process requiring 3-5 hours, 3 times a week.
