Q. Vasodilators are used to treat:
  • (A) Acute heart failure attending myocardial infarction
  • (B) Chronic heart failure due to diastolic dysfunction
  • (C) Chronic heart failure due to both systolic as well as diastolic dysfunction
  • (D) All of the above
πŸ’¬ Discuss
βœ… Correct Answer: (D) All of the above
Q. Glyceryl trinitrate is used in CHF for:
  • (A) Routine treatment of mild to moderate chronic heart failure
  • (B) Rapid symptom relief in acute left ventricular failure
  • (C) Arresting disease progression
  • (D) Both 'A' and 'B'
πŸ’¬ Discuss
βœ… Correct Answer: (B) Rapid symptom relief in acute left ventricular failure
Q. Beneficial effect/effects of diuretics in CHF patients include the following:
  • (A) Symptomatic relief
  • (B) Regression of pathological changes
  • (C) Prolongation of life expectancy
  • (D) Both ‘A’ and ‘C’
πŸ’¬ Discuss
βœ… Correct Answer: (A) Symptomatic relief
Q. The following is not true about :
  • (A) It blocks myocardial Na+ channels primarily in the open state
  • (B) It has no effect on myocardial K+ channels
  • (C) It produces frequency dependent blockade of myocardial Na+ channels
  • (D) It delays recovery of myocardial Na+ channels
πŸ’¬ Discuss
βœ… Correct Answer: (B) It has no effect on myocardial K+ channels
Q. Quinidine is now used primarily for:
  • (A) Conversion of atrial fibrillation to sinus rhythm
  • (B) Control of ventricular rate in atrial flutter
  • (C) Termination of ventricular tachycardia
  • (D) Prevention of recurrences of atrial fibrillation/ ventricular tachycardia
πŸ’¬ Discuss
βœ… Correct Answer: (D) Prevention of recurrences of atrial fibrillation/ ventricular tachycardia
Q. The most significant feature of the antiarrhythmic action of is:
  • (A) Suppression of phase-4 depolarization in ventricular ectopic foci
  • (B) Prolongation of action potential duration
  • (C) Prolongation of effective refractory period
  • (D) Depression of membrane responsiveness
πŸ’¬ Discuss
βœ… Correct Answer: (A) Suppression of phase-4 depolarization in ventricular ectopic foci
Q. The following is true of procainamide except:
  • (A) It generates an active metabolite in the body
  • (B) Its plasma half-life is longer than that of quinidine
  • (C) On long-term use, it can cause systemic lupus erythematosus like illness
  • (D) It is effective in many cases of ventricular extrasystoles, not responding to lignocaine
πŸ’¬ Discuss
βœ… Correct Answer: (B) Its plasma half-life is longer than that of quinidine