Decreased urine volume is a bad sign for ESRD patients and it means kidneys are failing in filtering blood and producing urine. Here, we will introduce how kidney produce urine, why ESRD patients have decreased urine volume and other urine changes in ESRD patients.
How does kidney produce urine?
Urine actually is the excess fluid and waste product in our body and it is discharged out of our body through kidney. In normal condition, blood flow into kidney and when they come to glomerular filtration membrane, only substances with big molecular weight or negative charge are allowed to pass through. In this way, most of the nutritions are kept in the body and wastes like creatinine and urea nitrogen are leaked out. Together with excess fluid, these substances are finally get out of our body as urine. The successful formation of urine is closely related with kidney condition.
Why ESRD patients have decreased urine volume?
As we have mentioned above, the successful formation of urine is closely related with kidney condition. ESRD stands for end stage renal disease and it is the worst kidney condition. For people with ESRD, kidney tissues, including glomerular filtration membrane, have been damaged seriously. In that condition, kidneys can not filter as more as blood they filtered before. Consequently, waste products and excess fluid can not be discharged successfully, which can lead to the decrease of urine volume directly.
Other urine changes of ESRD aside from decreased urine volume
For ESRD patients, decreased urine volume means serious kidney damages. And usually, the lesser the urine output, the lesser the kidney function.
Decreased urine volume is just one of the urine changes of ESRD and aside from it, patients also experience some other symptoms like bubbly urine, blood urine, frequent urination at night and even anuria. For people with anuria for a long time, their kidneys have failed completely. And in that case, regular dialysis and kidney transplant are the only two options for them to sustain their life. Therefore, it is of great importance for ESRD patients with decreased urine volume to seize the last chance to improve their kidney condition.
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