A 55-year-old man on ICU has acute kidney injury. His urine output has been 15 mL/hr for 6 hours. The team wishes to assess whether a fluid challenge ...

Question

A 55-year-old man on ICU has acute kidney injury. His urine output has been 15 mL/hr for 6 hours. The team wishes to assess whether a fluid challenge will improve urine output. They administer 250 mL of crystalloid over 15 minutes. Urine output does not increase over the subsequent hour. What does this result suggest?

Accepted Answer

Urine output is a poor real-time marker of fluid responsiveness; the response should be assessed using stroke volume or cardiac output changes rather than urine output alone

Answer

The patient definitely needs more fluid - administer another 2 litres

Answer

The patient has chronic kidney disease and will never respond

Answer

The fluid challenge was too small

Answer

The crystalloid was the wrong type

uk-fficm MCQ (SBA): Fluid Challenge Assessment