Final answer:
The minimum average hourly urine output for adequate hydration and perfusion is about 30 mL. This corresponds to a daily minimal urine volume of 0.47 liters (0.5 quarts), which is required for effective excretion of metabolic wastes.
Step-by-step explanation:
The minimum average hourly urine output expected for a person to ensure adequate hydration and perfusion is about 30 mL per hour. This equates to roughly 0.5 quarts (or 0.47 liters) per day, which is the minimal volume necessary for the kidneys to excrete metabolic wastes effectively and maintain proper organ function. A urine output below this level may indicate conditions such as severe dehydration or renal disease, with medical terms such as oliguria referring to low urine volume, and anuria indicating a near absence of urine production.