What is the urine output target for adequate resuscitation in adults with burns?

• A. 1.0–1.5 mL/kg/hour
• B. 0.2–0.5 mL/kg/hour
• C. 0.5–1.0 mL/kg/hour
• D. 2.0–3.0 mL/kg/hour

Answer: (C)

In burn resuscitation, urine output is a direct and practical measure of how well perfusion and circulating volume are being restored. For adults, the target is 0.5 to 1.0 mL of urine per kilogram of body weight per hour. This range signals adequate kidney perfusion without overloading the patient with fluids. For example, a 70 kg adult should aim for about 35 mL of urine per hour. If urine output falls below this range, fluids are often increased to improve perfusion; if it rises above, fluids may be reduced to avoid edema and other complications. Using urine output in this way helps tailor fluid therapy in the critical first 24 hours after a burn.