Congenital Heart Disease MCQ Questions with Answers
A 30-year-old female with a history of tetralogy of Fallot presents to the emergency department with shortness of breath and chest pain. On physical exam, her heart rate is 120 bpm, blood pressure is 90/60 mmHg, and she has cyanosis. ECG shows right ventricular hypertrophy. Which of the following is the most likely diagnosis?
a) Pulmonary embolism
b) Acute coronary syndrome
c) Ventricular tachycardia
d) Right heart failure
Answer: d) Right heart failure
A 25-year-old male with a history of atrial septal defect repair as a child presents with palpitations and lightheadedness. He reports occasional episodes of shortness of breath with exertion. On exam, his heart rate is irregularly irregular, and a holosystolic murmur is heard at the left lower sternal border. ECG shows atrial fibrillation. Which of the following is the most likely complication of his atrial septal defect repair?
a) Pulmonary hypertension
b) Right heart failure
c) Ventricular septal defect
d) Atrial fibrillation
Answer: a) Pulmonary hypertension
A 40-year-old male with a history of transposition of the great arteries repaired as an infant presents with increasing fatigue and exercise intolerance. On exam, he has a fixed split S2, and a harsh systolic ejection murmur is heard at the left upper sternal border. ECG shows right ventricular hypertrophy. Which of the following is the most likely diagnosis?
a) Aortic stenosis
b) Pulmonary stenosis
c) Mitral stenosis
d) Tricuspid regurgitation
Answer: b) Pulmonary stenosis
A 35-year-old female with a history of Ebstein's anomaly presents with dyspnea and chest pain. On exam, she has a widely split S2, a loud P2, and a holosystolic murmur at the lower left sternal border. ECG shows right axis deviation and right ventricular hypertrophy. Which of the following is the most likely diagnosis?
a) Pulmonary embolism
b) Acute coronary syndrome
c) Right ventricular infarction
d) Ebstein's anomaly exacerbation
Answer: d) Ebstein's anomaly exacerbation
A 50-year-old female with a history of coarctation of the aorta repaired as a child presents with headache and blurry vision. On exam, her blood pressure is 220/120 mmHg in the right arm and 100/60 mmHg in the left arm. A systolic ejection murmur is heard at the left upper sternal border. Which of the following is the most likely diagnosis?
a) Aortic dissection
b) Renal artery stenosis
c) Coarctation of the aorta recurrence
d) Aortic regurgitation
Answer: c) Coarctation of the aorta recurrence.
A 28-year-old male with a history of tetralogy of Fallot repaired as an infant presents with increasing dyspnea and fatigue. On exam, his heart rate is 110 bpm, and a systolic ejection murmur is heard at the left upper sternal border. ECG shows right ventricular hypertrophy. Which of the following is the most likely diagnosis?
a) Right ventricular outflow tract obstruction
b) Left ventricular outflow tract obstruction
c) Aortic stenosis
d) Mitral regurgitation
Answer: a) Right ventricular outflow tract obstruction
A 32-year-old female with a history of ventricular septal defect repaired as a child presents with palpitations and chest pain. On exam, her heart rate is irregularly irregular, and a holosystolic murmur is heard at the left lower sternal border. ECG shows atrial fibrillation. Which of the following is the most likely complication of her ventricular septal defect repair?
a) Pulmonary hypertension
b) Right heart failure
c) Ventricular tachycardia
d) Atrial fibrillation
Answer: d) Atrial fibrillation
A 45-year-old male with a history of total anomalous pulmonary venous return repaired as an infant presents with shortness of breath and fatigue. On exam, he has a fixed split S2, and a harsh systolic ejection murmur is heard at the left upper sternal border. ECG shows right ventricular hypertrophy. Which of the following is the most likely diagnosis?
a) Aortic stenosis
b) Pulmonary stenosis
c) Mitral stenosis
d) Tricuspid regurgitation
Answer: b) Pulmonary stenosis
A 38-year-old female with a history of atrioventricular septal defect repaired as a child presents with increasing dyspnea and exercise intolerance. On exam, she has a holosystolic murmur at the left lower sternal border and a fixed split S2. ECG shows left axis deviation and left ventricular hypertrophy. Which of the following is the most likely diagnosis?
a) Pulmonary hypertension
b) Left ventricular outflow tract obstruction
c) Mitral regurgitation
d) Aortic stenosis
Answer: c) Mitral regurgitation
A 52-year-old male with a history of truncus arteriosus repaired as an infant presents with dyspnea and fatigue. On exam, he has a harsh systolic ejection murmur at the left upper sternal border and a wide pulse pressure. ECG shows left ventricular hypertrophy. Which of the following is the most likely complication of his truncus arteriosus repair?
a) Pulmonary hypertension
b) Aortic stenosis
c) Aortic regurgitation
d) Coronary artery disease
Answer: c) Aortic regurgitation
A newborn baby is found to have a heart murmur during a routine checkup. An echocardiogram reveals a ventricular septal defect. Which of the following best describes this defect?
A. A hole between the two atria of the heart
B. A hole between the two ventricles of the heart
C. A narrowing of the aortic valve
D. A narrowing of the pulmonary valve
Answer: B. A hole between the two ventricles of the heart (VSD)
A 2-year-old child presents with cyanosis and shortness of breath during exertion. An echocardiogram reveals a tetralogy of Fallot. Which of the following is a component of this congenital heart defect?
A. Coarctation of the aorta
B. Patent ductus arteriosus
C. Ventricular septal defect
D. Aortic stenosis
Answer: C. Ventricular septal defect (VSD)
A 6-month-old infant has difficulty feeding and appears to tire easily during feedings. On auscultation, a loud murmur is heard. An echocardiogram reveals a coarctation of the aorta. Which of the following is a possible complication of this defect?
A. Pulmonary hypertension
B. Congestive heart failure
C. Atrial septal defect
D. Hypertrophic cardiomyopathy
Answer: B. Congestive heart failure
A 3-year-old child is found to have a heart murmur during a routine checkup. An echocardiogram reveals an atrial septal defect. Which of the following best describes this defect?
A. A hole between the two atria of the heart
B. A hole between the two ventricles of the heart
C. A narrowing of the aortic valve
D. A narrowing of the pulmonary valve
Answer: A. A hole between the two atria of the heart (ASD)
A 10-year-old child presents with fatigue, chest pain, and palpitations. An echocardiogram reveals hypertrophic cardiomyopathy. Which of the following is a possible cause of this condition?
A. A congenital defect of the heart valves
B. An infection of the heart muscle
C. An abnormality in the way the heart muscle is structured
D. An inflammation of the heart lining
Answer: C. An abnormality in the way the heart muscle is structured
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