MICROANATOMY

Detailed explanation-1: -Anuria, sometimes called anuresis, refers to the lack of urine production. This can happen as a result of conditions like shock, severe blood loss and failure of your heart or kidneys.

Detailed explanation-2: -Oliguria occurs when the urine output in an infant is less than 0.5 mL/kg per hour for 24 hours or is less than 500 mL/1.73 m2 per day in older children. Anuria is defined as absence of any urine output. An important point to remember is that healthy newborns may have no urine output for 24 hours after birth.

Detailed explanation-3: -Oliguria occurs when urine production is reduced dramatically, defined as a decrease in urine output to less than 500 mL per day or less than 0.5 ml/kg/hour. In contrast, anuria is the absence of urine production, defined as a urine output of fewer than 100 milliliters per day.