Diabetic ketoacidosis with hypokalaemia — SCE Acute Medicine MCQ
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Correct answer: A — Start intravenous fluids and potassium replacement before fixed-rate insulin infusion
DKA requires fluids, ketone clearance with insulin and potassium management, but potassium of 3.2 mmol/L means replacement is needed before insulin because insulin will drive potassium intracellularly. Routine bicarbonate is not indicated at this pH in standard DKA care. The major safety issue is avoiding treatment-induced hypokalaemia.
Reference: Joint British Diabetes Societies guideline for DKA; NICE CKS diabetic ketoacidosis