Here, we are going to discuss the definitions and causes of both Oilguria and Anuria, which are urinary symptms .
Causes: See Acute renal failure.
• Anuria means that urine volume is < 100 ml / 24hrs, it raises the possibility of urinary tract obstruction.
N.B
* 200 ml- 300 ml urine output / day might be sufficient fora healthy man on a protein free diet, whereas 2 Litres might be insufficient when chronic renal failure is present.
* Non oliguric renal failure is relatively common, (20% of cases) ..and frequently unrecognized.
What is meant by Oliguria and Anuria ?
• Oliguria means Urine output < 400 mL/day (which is the minimal volume of urine which is necessary to excrete the waste products), this varies with diet, physical activity and metabolic rate as well as renal function.Causes: See Acute renal failure.
• Anuria means that urine volume is < 100 ml / 24hrs, it raises the possibility of urinary tract obstruction.
N.B
* 200 ml- 300 ml urine output / day might be sufficient fora healthy man on a protein free diet, whereas 2 Litres might be insufficient when chronic renal failure is present.
* Non oliguric renal failure is relatively common, (20% of cases) ..and frequently unrecognized.