What is considered a normal urinary output (UO) per hour?

Normal urinary output for an adult typically ranges from 30 to 60 milliliters per hour. An output of 30 ml/hr is considered the lower limit of normal and suggests that the kidneys are functioning adequately to maintain fluid balance.

This value is often used in clinical settings to monitor kidney function and hydration status. If the urinary output falls below this level for an extended period, it may indicate issues such as dehydration, acute kidney injury, or obstruction in the urinary tract. Thus, the selection of 30 ml/hr as a benchmark represents an essential guideline in assessing patient health and renal status.