au-amc MCQ (SBA): Long QT syndrome and drug-induced QT prolongation

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MediumCardiologyLong QT syndrome and drug-induced QT prolongationau-amcau-racp

A 48-year-old woman presents with presyncope. ECG shows a corrected QT interval of 520 ms. Which of the following commonly prescribed medications is most likely to further prolong the QT interval and should be avoided if possible?

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au-amc MCQ: Long QT syndrome and drug-induced QT prolongation — Answer