What is the goal urine output per hour in this protocol?

• A. 10-20 ml/hr
• B. 20-40 ml/hr
• C. 30-50 ml/hr
• D. 50-70 ml/hr

Answer: (C)

Maintaining a steady urine output is a practical way to verify adequate kidney perfusion and balance during fluid management. The protocol targets about half a milliliter of urine per kilogram of body weight each hour. For a typical adult, that works out to roughly thirty to fifty milliliters per hour. This range provides enough renal perfusion to protect kidney function while avoiding excessive fluid administration that can lead to edema or other complications.

If urine output falls below that range, it suggests under-resuscitation or ongoing poor perfusion, signaling the need to adjust fluids or hemodynamics. If it stays markedly above that range, it can indicate overhydration or diuresis, prompting a reassessment of fluid strategy. The other options fall short because they either imply too little perfusion, risking kidney injury, or imply too much output, which isn’t the goal for stable resuscitation.