Many patients with kidney failure complain they have decreased urine output after dialysis and they wonder if this symptom is related with their dialysis. Dialysis is a common medical method used by people with completely failed kidney and decreased urine output describes a condition in which urine output becomes less and less. Many conditions can cause decreased urine output like low fluid intake and vomiting and so on. However, for people with kidney failure, will dialysis bring them decreased urine output directly?
As a matter of fact, long time dialysis indeed leads to decreased urine output:
Firstly, our kidneys help us discharge wastes like urea nitrogen and creatinine which are excreted with urine. Dialysis is an artificial kidney which can help us purify blood outside our body. When wastes are discharged with dialysis, there are less in our blood and consequently, kidneys do not need to produce much more urine to discharge wastes.
Secondly, dialysis can also helps us to discharge excessive fluids, as a result of which, less urine is produced.
Thirdly, our kidney works as a filter and help to filter our blood, during which wastes are discharged. Dialysis is a medical procedure in which blood is filtered outside our body. Dialysis can not repair damaged kidney tissues and also more and more kidney tissues lose their working ability over time. Consequently, decreased urine output condition occurs.
Dialysis is just one of the major causes of decreased kidney function among kidney failure patients, but aside from it, factors like strictly fluid limitation, dehydration and vomiting also contributes to decreased urine output directly. For people with dialysis, urine output is closely related with kidney function, so to increase urine volume, improving kidney condition is very necessary.
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