Dialysis
Key Stage 4
Meaning
Dialysis is a medical procedure to remove waste from the blood using an artificial kidney.
About Dialysis
- Dialysis is used when a person's kidneys fail to remove urea.
- In dialysis the blood is pumped out of the body through a tube with a permeable membrane. Surrounding that tube is a fluid which contains no urea, but a safe concentration of glucose and salts to allow the diffusion of urea out of the blood due to a concentration gradient but no diffusion of salts or glucose.
References
AQA
- Dialysis, page 204-7, GCSE Biology; Student Book, Collins, AQA
- Dialysis, page 76, GCSE Biology; The Revision Guide, CGP, AQA
- Dialysis, pages 157-8, GCSE Biology, Hodder, AQA
- Dialysis, pages 188-191, GCSE Biology; Third Edition, Oxford University Press, AQA
- Dialysis, pages 219, 220, GCSE Biology, CGP, AQA