During Parkland fluid resuscitation, which parameter is used to gauge adequacy of resuscitation?

During Parkland fluid resuscitation, which parameter is used to gauge adequacy of resuscitation?

• A. Urine output
• B. Blood pressure alone
• C. Serum potassium level
• D. Respiratory rate alone

Answer: (A)

Urine output is the main way to judge whether Parkland-driven fluids are adequately resuscitating a burn patient. The Parkland approach gives a calculated total dose of fluid in the first 24 hours, but the rate is adjusted to achieve a target urine output, which directly reflects renal perfusion and effective intravascular volume. In adults, aim for about 0.5 mL/kg per hour (children: ~1 mL/kg per hour). If urine output is below this target, increase the fluid rate; if it’s consistently above or there are signs of overload, decrease. This measure is preferred because urine production responds to real-time changes in circulating volume and renal perfusion, whereas blood pressure can remain deceptively normal if the patient is vasoconstricted, serum potassium reflects cellular injury rather than volume status, and respiratory rate is a non-specific indicator. Urine output thus provides a practical, direct gauge of resuscitation adequacy during the Parkland protocol.

Urine output is the main way to judge whether Parkland-driven fluids are adequately resuscitating a burn patient. The Parkland approach gives a calculated total dose of fluid in the first 24 hours, but the rate is adjusted to achieve a target urine output, which directly reflects renal perfusion and effective intravascular volume. In adults, aim for about 0.5 mL/kg per hour (children: ~1 mL/kg per hour). If urine output is below this target, increase the fluid rate; if it’s consistently above or there are signs of overload, decrease.

This measure is preferred because urine production responds to real-time changes in circulating volume and renal perfusion, whereas blood pressure can remain deceptively normal if the patient is vasoconstricted, serum potassium reflects cellular injury rather than volume status, and respiratory rate is a non-specific indicator. Urine output thus provides a practical, direct gauge of resuscitation adequacy during the Parkland protocol.