CBSE Class 10 Answered
Can u plss explain me about artifical kidney and its function and advantages and dis-advantages of artifical kidney???
Asked by edayoor | 09 Apr, 2018, 05:55: PM
Expert Answer
Artificial Kidney
- If one kidney is damaged or removed, then the other kidney alone can fulfil the excretory needs.
- However, the failure of both kidneys allows urea and other wastes to accumulate in the blood.
- Such a patient undergoes dialysis.
- In dialysis, an artificial kidney is used.
Procedure:
- The artificial kidney contains tubes made of cellophane with a semi-permeable lining.
- These tubes are suspended in a tank filled with a dialysing solution.
- This fluid contains water and glucose in concentrations similar to those in blood.
- The patient’s blood is led from the radial artery and cooled at 0°C.
- Then anticoagulant heparin is added to the blood.
- Blood is then passed through the semi-permeable coiled cellophane tubes.
- The tubes allow small molecules such as urea, creatinine and uric acid to pass out.
- Metabolic wastes are also filtered out in the surrounding solution.
- Macromolecules such as proteins are retained in the blood.
- Purified blood is then mixed with antiheparin and warmed to the body temperature.
- The purified blood is returned through a vein in the same arm.
- The function of dialysis is similar to the function of the kidney, but the only difference is that there is no reabsorption during dialysis.
Advantages:
- Elimination of wastes from the body
- Retention of important metabolites in the body.
Disadvantages:
- Patients are required to strictly follow specific schedules.
- They are required to travel to the dialysis centre regularly.
- Strict diet and fluid control
- Health-related complications
Answered by Sheetal Kolte | 09 Apr, 2018, 06:58: PM
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