A burn patient’s urine output over the past 4 hours is 230 mL. What action should be taken with the IV fluid rate?

A burn patient’s urine output over the past 4 hours is 230 mL. What action should be taken with the IV fluid rate?

• A. Increase rate by 25%
• B. Decrease rate by 25%
• C. Maintain rate
• D. Stop fluids

Answer: (B)

In burn resuscitation, urine output is a guiding measure for how well fluids are matching the patient’s needs. The target is to keep hourly urine output around 0.5 mL per kilogram of body weight. Here, the patient produced 230 mL over 4 hours, which is about 57.5 mL per hour. For a typical adult (for example, around 70 kg), that target would be roughly 35 mL per hour; the current rate is higher than the goal, indicating the patient may be receiving more fluid than necessary. Reducing the IV fluid rate by about 25% is a cautious, appropriate adjustment to bring urine output closer to the target without risking under-resuscitation. After reducing, continue hourly checks of urine output and vital signs to confirm that perfusion remains adequate and output trends toward the goal. If urine output falls toward or below the target, reassess and adjust accordingly; if signs of poor perfusion appear, reconsider the rate change. Stopping fluids would risk under-resuscitation, and maintaining or increasing the rate would likely worsen fluid overload given the current higher-than-goal urine output.

In burn resuscitation, urine output is a guiding measure for how well fluids are matching the patient’s needs. The target is to keep hourly urine output around 0.5 mL per kilogram of body weight. Here, the patient produced 230 mL over 4 hours, which is about 57.5 mL per hour. For a typical adult (for example, around 70 kg), that target would be roughly 35 mL per hour; the current rate is higher than the goal, indicating the patient may be receiving more fluid than necessary.

Reducing the IV fluid rate by about 25% is a cautious, appropriate adjustment to bring urine output closer to the target without risking under-resuscitation. After reducing, continue hourly checks of urine output and vital signs to confirm that perfusion remains adequate and output trends toward the goal. If urine output falls toward or below the target, reassess and adjust accordingly; if signs of poor perfusion appear, reconsider the rate change. Stopping fluids would risk under-resuscitation, and maintaining or increasing the rate would likely worsen fluid overload given the current higher-than-goal urine output.