65. What is dialysis?
The chemical reactions in our body produce waste products, which
are byproducts of these reactions. These have to be removed from
the body, otherwise they would have harmful effects on us.
The kidneys are a perfect filter which perform the function of
removal of waste products through the urine. Sometimes, when the
kidneys get infected and do not function properly, the person starts
suffering which can lead to his/her death. Such people are put on to
artificial kidneys, also known as dialyser. Dialyser is a machine that
filters the blood of harmful substances.
Blood from a blood vessel is drawn into the dialyser and then
purified to be fed into another blood vessel of the body. Such people
have to be dialysed after every 2-3 days. Damaged kidneys are also
replaced either from a donor or a dead person.
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