How to determine polyuria oliguria anuria

Polyuria, oliguria and anuria are diagnosed by calculating the 24-hour urine volume. Generally, the 24-hour urine volume is between 1000 and 2000 ml. If the 24-hour urine volume exceeds 2500 ml, it can be diagnosed as polyuria. If the 24-hour urine volume is less than 400 ml, it can be diagnosed as oliguria. If the 24-hour urine volume is less than 100 ml, it can be diagnosed as anuria. Polyuria, oliguria and anuria can be caused by kidney disease or other related diseases. Therefore, after showing these symptoms, you should go to the hospital in time to check the cause carefully.