ARKANSAS CARDIOLOGY SPECIALIST
EXAMINATION QUESTIONS WITH CORRECT
ANSWERS AND RATIONALES LATEST 2026-2027
TREND| A+ GRADE GUARANTEE
Question 1
A 58-year-old man presents with substernal chest pressure occurring at
rest for 40 minutes. ECG shows 2-mm ST-segment elevation in leads II,
III, and aVF. What is the most appropriate immediate management?
A. Exercise stress testing
B. Emergent coronary reperfusion
C. Outpatient coronary CT angiography
D. Oral statin therapy alone
Correct Answer: B. Emergent coronary reperfusion
Rationale: Persistent ST-segment elevation with an appropriate clinical
presentation indicates STEMI. Rapid reperfusion, preferably primary
PCI when available within appropriate time targets, is critical to limit
myocardial injury.
Question 2
Which coronary artery most commonly supplies the inferior wall of the
left ventricle?
A. Left main coronary artery
B. Left anterior descending artery
,C. Right coronary artery
D. Left circumflex artery exclusively
Correct Answer: C. Right coronary artery
Rationale: The RCA supplies the inferior wall in most individuals
through the posterior descending artery. Coronary dominance varies,
however, and the circumflex supplies the inferior territory in left-
dominant circulation.
Question 3
A patient has an ECG showing an irregularly irregular rhythm without
distinct P waves. What is the most likely diagnosis?
A. Atrial flutter
B. Atrial fibrillation
C. Multifocal atrial tachycardia
D. Sinus arrhythmia
Correct Answer: B. Atrial fibrillation
Rationale: Atrial fibrillation is characterized by chaotic atrial electrical
activity, absent organized P waves, and an irregularly irregular
ventricular response.
Question 4
Which medication class has a major role in reducing mortality in
patients with heart failure with reduced ejection fraction (HFrEF)?
A. Loop diuretics alone
B. Evidence-based beta blockers
,C. Nondihydropyridine calcium-channel blockers
D. Digoxin alone
Correct Answer: B. Evidence-based beta blockers
Rationale: Guideline-directed therapy for HFrEF includes evidence-
based beta blockers such as carvedilol, metoprolol succinate, and
bisoprolol. They reduce mortality and hospitalization when
appropriately initiated and titrated.
Question 5
A patient with acute pulmonary edema has severe hypertension and
respiratory distress. Which intervention is particularly useful when blood
pressure is markedly elevated?
A. High-dose IV nitrates
B. Immediate beta blockade in all cases
C. Oral digoxin
D. Fluid bolus
Correct Answer: A. High-dose IV nitrates
Rationale: In hypertensive acute pulmonary edema, rapid reduction of
preload and afterload with appropriately dosed IV nitrates can
substantially improve symptoms and hemodynamics.
Question 6
Which ECG finding is most characteristic of first-degree AV block?
A. PR interval less than 120 ms
B. PR interval greater than 200 ms
, C. Dropped QRS complexes
D. Wide QRS with alternating morphology
Correct Answer: B. PR interval greater than 200 ms
Rationale: First-degree AV block is defined by a prolonged PR interval,
generally greater than 200 ms, with every atrial impulse still conducted
to the ventricles.
Question 7
A patient develops polymorphic ventricular tachycardia with a
prolonged QT interval. Which electrolyte abnormality is especially
important to correct?
A. Hypernatremia
B. Hypokalemia
C. Hyperchloremia
D. Hyperphosphatemia
Correct Answer: B. Hypokalemia
Rationale: Hypokalemia increases the risk of QT prolongation and
torsades de pointes. Potassium and magnesium should be corrected
promptly in patients with acquired long-QT-associated ventricular
arrhythmias.
Question 8
What is the primary hemodynamic effect of aortic stenosis?
A. Left ventricular pressure overload
B. Right ventricular volume overload
EXAMINATION QUESTIONS WITH CORRECT
ANSWERS AND RATIONALES LATEST 2026-2027
TREND| A+ GRADE GUARANTEE
Question 1
A 58-year-old man presents with substernal chest pressure occurring at
rest for 40 minutes. ECG shows 2-mm ST-segment elevation in leads II,
III, and aVF. What is the most appropriate immediate management?
A. Exercise stress testing
B. Emergent coronary reperfusion
C. Outpatient coronary CT angiography
D. Oral statin therapy alone
Correct Answer: B. Emergent coronary reperfusion
Rationale: Persistent ST-segment elevation with an appropriate clinical
presentation indicates STEMI. Rapid reperfusion, preferably primary
PCI when available within appropriate time targets, is critical to limit
myocardial injury.
Question 2
Which coronary artery most commonly supplies the inferior wall of the
left ventricle?
A. Left main coronary artery
B. Left anterior descending artery
,C. Right coronary artery
D. Left circumflex artery exclusively
Correct Answer: C. Right coronary artery
Rationale: The RCA supplies the inferior wall in most individuals
through the posterior descending artery. Coronary dominance varies,
however, and the circumflex supplies the inferior territory in left-
dominant circulation.
Question 3
A patient has an ECG showing an irregularly irregular rhythm without
distinct P waves. What is the most likely diagnosis?
A. Atrial flutter
B. Atrial fibrillation
C. Multifocal atrial tachycardia
D. Sinus arrhythmia
Correct Answer: B. Atrial fibrillation
Rationale: Atrial fibrillation is characterized by chaotic atrial electrical
activity, absent organized P waves, and an irregularly irregular
ventricular response.
Question 4
Which medication class has a major role in reducing mortality in
patients with heart failure with reduced ejection fraction (HFrEF)?
A. Loop diuretics alone
B. Evidence-based beta blockers
,C. Nondihydropyridine calcium-channel blockers
D. Digoxin alone
Correct Answer: B. Evidence-based beta blockers
Rationale: Guideline-directed therapy for HFrEF includes evidence-
based beta blockers such as carvedilol, metoprolol succinate, and
bisoprolol. They reduce mortality and hospitalization when
appropriately initiated and titrated.
Question 5
A patient with acute pulmonary edema has severe hypertension and
respiratory distress. Which intervention is particularly useful when blood
pressure is markedly elevated?
A. High-dose IV nitrates
B. Immediate beta blockade in all cases
C. Oral digoxin
D. Fluid bolus
Correct Answer: A. High-dose IV nitrates
Rationale: In hypertensive acute pulmonary edema, rapid reduction of
preload and afterload with appropriately dosed IV nitrates can
substantially improve symptoms and hemodynamics.
Question 6
Which ECG finding is most characteristic of first-degree AV block?
A. PR interval less than 120 ms
B. PR interval greater than 200 ms
, C. Dropped QRS complexes
D. Wide QRS with alternating morphology
Correct Answer: B. PR interval greater than 200 ms
Rationale: First-degree AV block is defined by a prolonged PR interval,
generally greater than 200 ms, with every atrial impulse still conducted
to the ventricles.
Question 7
A patient develops polymorphic ventricular tachycardia with a
prolonged QT interval. Which electrolyte abnormality is especially
important to correct?
A. Hypernatremia
B. Hypokalemia
C. Hyperchloremia
D. Hyperphosphatemia
Correct Answer: B. Hypokalemia
Rationale: Hypokalemia increases the risk of QT prolongation and
torsades de pointes. Potassium and magnesium should be corrected
promptly in patients with acquired long-QT-associated ventricular
arrhythmias.
Question 8
What is the primary hemodynamic effect of aortic stenosis?
A. Left ventricular pressure overload
B. Right ventricular volume overload
