KROK 1 2011 – Question 142 · KROK (Medicine) · Pharmacology

A patient with coronary disease and arrhythmia has been administered a drug that blocks potassium channels and prolongs the action potential. What drug is it?

  1. A. Amiodarone
  2. B. Lisinopril
  3. C. Corglyconum
  4. D. Dobutamine
  5. E. Nitroglycerin
Hint

Recall the Vaughan Williams classification and ask which class of antiarrhythmic drugs is defined by delayed repolarisation.

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