Daily urine output range can fluctuate between which values?

• A. 1000-2000 mL
• B. 500-1000 mL
• C. 2500-3000 mL
• D. 300-600 mL

Answer: (A)

Normal daily urine production in a healthy adult varies with fluid intake and other factors, but it typically falls in a broad range around 800 to 2000 milliliters per day. The chosen range, 1000 to 2000 milliliters, fits well within this normal variability and accounts for common day-to-day fluctuations in hydration, activity, and kidney function. Lower outputs, such as 500–1000 mL, would suggest reduced urine production (oliguria), while higher outputs, like 2500–3000 mL, indicate increased urine production (polyuria). A range of 300–600 mL is consistently low and not typical for normal variation. So 1000–2000 mL best represents the usual fluctuating but normal daily urine output.