What defines anuria?

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Multiple Choice

What defines anuria?

Explanation:
Anuria means essentially no urine production. In adults, it is defined as urine output of less than 100 mL in 24 hours (sometimes described as no urine for a day). This is why it’s distinguished from oliguria, which is a reduced urine output that is still above that very low threshold (oliguria is often <400 mL/day). So a volume around 1 liter per day is not anuria; it’s considered oliguria, while 400 mL/day is also oliguria, and 2.5 liters/day is polyuria. The concept tested is recognizing that anuria is near-complete absence of urine, typically under 100 mL per day.

Anuria means essentially no urine production. In adults, it is defined as urine output of less than 100 mL in 24 hours (sometimes described as no urine for a day). This is why it’s distinguished from oliguria, which is a reduced urine output that is still above that very low threshold (oliguria is often <400 mL/day). So a volume around 1 liter per day is not anuria; it’s considered oliguria, while 400 mL/day is also oliguria, and 2.5 liters/day is polyuria. The concept tested is recognizing that anuria is near-complete absence of urine, typically under 100 mL per day.

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