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Cardiology MCQ 50

Q. A 25-year old woman has presented to the clinic for assessment. She has a past medical history of palpitations and is suspected to have congenital long QT syndrome from evidence of her ECG findings. Which one of these drugs should be avoided?
A. Amoxycillin
B. Thyroxine
C. Sertraline
D. Paracetamol
Answer: C- Sertraline

Explanation:Common drugs which cause long QT syndrome are:
Tricyclic antidepressants  (e.g.sertraline)
Antiarrhythmics:
Quinidine
Disopyramide
Procainamide
Amiodarone
Sotalol
Antipsychotics: Haloperidol and thioridazine
Cisapride
Antimalarials: Halofantrine
Terfinadine

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