alleryStart learning →What is the average volume of urine a person produces in a day?
AAbout 0.5 liters
BAbout 1.5 liters
CAbout 2.5 liters
DAbout 3.5 liters
Answer & Solution
Correct answer: B. About 1.5 liters
1. Water leaves the body predominantly through the renal system.
2. Average urine output is 1.5 liters per day.
3. That volume rises or falls with hydration, but it cannot fall without limit.
4. About 0.5 liters is close to the minimum needed to clear wastes, not the average.
_Source: OpenStax Anatomy and Physiology (CC BY 4.0), Ch 26 "Fluid, Electrolyte, and Acid-Base Balance", section Regulation of Water Output_
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