Pre-renal AKI — RACP Paediatrics MCQ
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Correct answer: D — Stop unnecessary IV fluid or prescribe reduced-rate isotonic glucose-containing maintenance fluid
Explanation lettering: B = shown as A · E = shown as B · D = shown as C · C = shown as D · A = shown as E
C is correct because unwell children retain water through non-osmotic ADH; rising weight and falling sodium require stopping unnecessary IV fluid or using isotonic fluid at a reduced, reassessed rate. D perpetuates hospital-acquired hyponatraemia. E adds volume without shock. A ignores a key potassium-safety check. B waits for severe harm rather than responding to the trend. Serial weight and electrolytes are central because IV fluid is a prescribed medicine.
Reference: Royal Children’s Hospital Melbourne, Intravenous fluids: https://www.rch.org.au/clinicalguide/guideline_index/Intravenous_fluids/