Practice question

Answer the question and get instant feedback.

EasyEndocrinologyPost-thyroidectomy hypocalcaemiaau-amc

A 48-year-old woman presents with episodes of tingling around the mouth, muscle cramps and positive Chvostek's sign after recent total thyroidectomy. ECG shows a prolonged QT interval. Which biochemical abnormality is MOST likely responsible?

Educational content. Not a substitute for clinical judgement or local policy.