Patients are often required to limit water intake after dialysis. Then why should dialysis patients limit water intake?
Dialysis is usually used to patients whose disease have already developed into kidney failure. In kidney failure, kidneys have lost their abilities to discharge metabolic products and extra water as well as other functions. Then dialysis is used as an artificial kidney to help kidney do these jobs.
Many patients with kidney failure have an obvious reduction of urine output. It is necessary for those patients to limit water intake. The reasons are as follow:
A. The blood pressure of dialysis patients is mainly affected by the water volume in the body. To limit water intake is to well control blood pressure.
B. Excessive water in blood will increase the burden of heart, leading to heart failure. So water intake must be limited strictly.
C. Dialysis is done during a fixed period of time. If excessive water is removed in a short time-frame, low blood pressure will occur. It will bring patients a lot of troubles, such as nausea, vomit, dizziness, etc.
Therefore, for those who have no urine output, the weight gain should be controlled below 5% of the dry weight before dialysis. This will lower the risk of heart failure and make sure that the dialysis will be done safely and smoothly.
Some patients may have normal urine output after dialysis. But there is also water intake limit because the compensatory ability of kidneys is still very low. So patients should consult the doctors for how much water you should take evryday. The doctors will give you some suggestions according to your daily urine output.
Limiting water intake after dialysis is good for preserving residual kidney function. If you still have questions, you can send me an email to email@example.com or leave a message below, I will give you a reply within 48 hours!
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