What is a typical normal adult urine output per hour?

What is a typical normal adult urine output per hour?

• A. 10 mL/hr
• B. 30 mL/hr
• C. 50 mL/hr
• D. 70 mL/hr

Answer: (B)

Normal urine output in adults is about 0.5 mL per kilogram per hour. For a typical adult around 70 kg, that’s roughly 35 mL per hour. In practice, a convenient benchmark used in exams is about 30 mL per hour, which signifies adequate kidney perfusion and fluid balance. Values well below this suggest oliguria and possible dehydration, hypovolemia, or kidney impairment, while higher outputs can occur with diuretics or certain conditions but aren’t the standard baseline. So 30 mL per hour is the best-reasoned target for a typical normal adult urine output.

Normal urine output in adults is about 0.5 mL per kilogram per hour. For a typical adult around 70 kg, that’s roughly 35 mL per hour. In practice, a convenient benchmark used in exams is about 30 mL per hour, which signifies adequate kidney perfusion and fluid balance. Values well below this suggest oliguria and possible dehydration, hypovolemia, or kidney impairment, while higher outputs can occur with diuretics or certain conditions but aren’t the standard baseline. So 30 mL per hour is the best-reasoned target for a typical normal adult urine output.