SZC Rapid Onset 24-48 Hours Correction — ESENeph MCQ

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HardElectrolyte DisordersSZC Rapid Onset 24-48 Hours CorrectionESENeph

A patient with CKD has potassium 6.8 mmol/L and broad QRS complexes. What treatment must be given first to stabilise the myocardium?

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Correct answer: E — Intravenous calcium

ECG toxicity from hyperkalaemia requires immediate intravenous calcium to stabilise the cardiac membrane. Insulin with glucose and other measures then shift potassium intracellularly, while removal and the underlying cause are addressed. Calcium protects the heart but does not lower serum potassium.

Reference: https://www.nice.org.uk/guidance/conditions-and-diseases/kidney-conditions