Anuria is defined as urine output less than ................. ml/24 hour.

Correct option is C

Sol. Anuria is a severe medical condition characterized by a urine output of less than 100 ml in 24 hours, often indicating acute kidney injury (AKI), severe dehydration, urinary tract obstruction, or end-stage renal disease (ESRD). It is a critical sign of kidney dysfunction, leading to fluid overload, electrolyte imbalances, and metabolic waste accumulation in the body. Early diagnosis and intervention, such as IV fluids, diuretics, or dialysis, are crucial to prevent complications like hypertension, heart failure, and metabolic acidosis.
Explanation of Each Option:
· 800 ml: Incorrect; this falls within the normal urine output range (typically 800-2000 ml/day) and does not indicate kidney failure.
· 500 ml: Incorrect; urine output below 500 ml/day is called "oliguria", which suggests kidney dysfunction but is not severe enough to be classified as anuria.
· 100 ml: Correct answer; anuria is defined as urine output less than 100 ml in 24 hours, which is a medical emergency requiring urgent evaluation.
· 300 ml: Incorrect; this falls under oliguria, where urine output is between 100-500 ml/day, often seen in early kidney dysfunction but not complete kidney failure.