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What do the Kidneys do?

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Kidney works a filtering unit for the body and helps in discarding waste products from blood stream.


Kidney filters out waste products from blood stream. Normally 200 litres of water are filtered through the kidney daily and only about 2 liters are passed as urine.

Usually, there are two kidneys in each one of us. They are bean shaped and weigh about 150gms and are 12 cm x 5 cms in size. They are located in the middle of the back, just below the rib cage. Each kidney is made up of small, complex units called nephrons. The two kidneys contain about two million nephrons. The nephrons work continuously to filter out waste products from the blood stream, all of which come from the food that one eats and the fluid that one drinks. The kidney also regulates the concentration of most of the constituents of body fluids.

Haemodialysis-Dialysis

They also retain certain substances that are needed by the body. In addition, the kidneys stimulate the body to produce red blood cells, regulate blood pressure, keep bones healthy by converting inactive Vitamin D to its active form and maintain the water and pH (acidity / alkalinity) balance of the body.
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If you have a question about health related issues, you can now post it in our Ask An Expert section on our community website Medwonders.com and get answers from our panel of experts.
Posted by:  sukhpreet15(Guest)  Posted on: 09/21/2011
my daddy age 71 yrs showing createnine 3.8 in apr,4.2 in june,4.8 in aug and 7.3 in sept.But not showing any clinical symtoms.plz any one can guide me what to do.



Posted by:  seadog  Posted on: 07/12/2010
Can chronic kidney disease at stage 3b cause vagueness or confusion?



Posted by:  Satkam(Guest)  Posted on: 05/29/2010
Are there medical facilities to do these procedures for people living in small towns of India? How expensive will it be?


Posted by:  guest  Posted on: 06/11/2010
yes.. facility is available even in smaller towns in india in private hospitals.. just check out govt. hospitals @ district headquaters as dialysis facility is available in most of them and a bit low priced.. exact charges vary




Posted by:  joyce(Guest)  Posted on: 10/31/2009
why patient have giddiness while dialysis




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