alleryStart learning →Above what daily volume is urine production called polyuria?
AMore than 1.5 L of urine a day
BMore than 2.0 L of urine a day
CMore than 2.5 L of urine a day
DMore than 3.5 L of urine a day
Answer & Solution
Correct answer: C. More than 2.5 L of urine a day
1. Normal urine output sits between one and two liters a day.
2. Polyuria is defined as production in excess of 2.5 liters a day.
3. Diabetes insipidus, diabetes mellitus and heavy diuretic use are the causes listed for it.
4. A figure of 1.5 or 2.0 liters still falls inside or just above the normal band, so neither marks polyuria.
_Source: OpenStax Anatomy and Physiology (CC BY 4.0), Ch 25 "The Urinary System", section 25.1 Physical Characteristics of Urine_
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