If the IV fluid rate is 260 mL/hour and urine output is above 50 mL/hour, what should be the new rate?

If the IV fluid rate is 260 mL/hour and urine output is above 50 mL/hour, what should be the new rate?

• A. 195 mL/hour
• B. 260 mL/hour
• C. 230 mL/hour
• D. 285 mL/hour

Answer: (A)

When urine output is adequate (above 50 mL/hour), you can safely trim the IV fluid rate to prevent fluid overload. A standard approach is to reduce the rate by about 25% if renal output is good. Reducing 260 mL/hour by 25% gives 195 mL/hour (since 260 × 0.75 = 195). So the new rate should be 195 mL/hour. After changing the rate, monitor urine output and hemodynamics closely; if urine output stays above 50 mL/hour and the patient remains stable, you may continue with this adjusted rate or reassess soon.

When urine output is adequate (above 50 mL/hour), you can safely trim the IV fluid rate to prevent fluid overload. A standard approach is to reduce the rate by about 25% if renal output is good. Reducing 260 mL/hour by 25% gives 195 mL/hour (since 260 × 0.75 = 195). So the new rate should be 195 mL/hour. After changing the rate, monitor urine output and hemodynamics closely; if urine output stays above 50 mL/hour and the patient remains stable, you may continue with this adjusted rate or reassess soon.