Oliguria is defined as passing a reduced urine volume. Oliguria is defined as a urine output that is:
Less than 1 mL/kg/hour in infants.
Less than 0.5 mL/kg/hour in children.
Less than 400 mL/day in adults.
When the kidneys fail to completely remove the wastes and excess fluid out of
body, dialysis can replace kidneys to accomplish this task. Firstly, we will
explain the reason why decreased urine output after dialysis appears. Dialysis
itself helps patients discharge the water, after water is expelled from the
body, then it is not hard to explain why the decreased urine output occurs.
Moreover, dialysis can reduce the blood flow of kidneys, which is another reason
for the decreased urine output after dialysis. Even though dialysis can help
patients remove the wastes and excess fluid, it is unable to repair the kidney
damage. So after a long term of taking dialysis, there is no doubt that less and
less kidney function will be left. With the decline in kidney function, the
urine output will become less and less.
Following the dialysis diet
Diet is an important part of treatment for dialysis patients. Certain foods
must also be counted in your daily fluid intake. In general, anything that is
liquid at room temperature is considered a fluid.
These guidelines may help you follow your recommended daily fluid intake
between dialysis treatments:
Avoid salt and salty foods because they can cause thirst and water
Drink only recommended quantities of water and other beverages.
Limit foods that contain liquid, or are liquid at room temperature.
Measure foods accurately. Use a food scale, measuring spoons and measuring
cups for both dry and liquid measures.
Monitor your daily weight gain on a digital scale.
Keep a daily food and fluid diary.
The dialysis diet isn’t easy, but your dietitian and other patients can give
you tips on how to limit your daily fluid intake and still feel satisfied. For
example, when the urge to quench your thirst strikes, suck on a mint, brush your
teeth or use a spray bottle to squirt a small amount of water into your mouth
for instant relief.