COMSAE PHASE 1 FORM 114 Actual EXAM – 176 QUESTIONS AND
ANSWERS | VERIFIED AND WELL DETAILED ANSWERS | PLUS
RATIONALES | GUARANTEED PASS | LATEST EXAM UPDATE.
Question 1
A 65-year-old male with a history of hypertension presents with sudden onset of severe,
tearing chest pain radiating to the back. Blood pressure is 180/100 mmHg in the right
arm and 140/90 mmHg in the left arm. Which of the following is the most likely
diagnosis?
• A) Myocardial infarction
• B) Pulmonary embolism
• C) Aortic dissection
• D) Pericarditis
• E) Esophageal rupture
Answer: C) Aortic dissection
Rationale: Aortic dissection typically presents with acute, severe chest pain that
radiates to the back. The key finding is a difference in blood pressure between arms (>20
mmHg). Risk factors include hypertension and connective tissue disorders. Myocardial
infarction typically presents with crushing substernal chest pain, not back radiation.
Pulmonary embolism presents with acute dyspnea and pleuritic chest pain. Pericarditis
pain is typically sharp and positional.
Question 2
A 72-year-old female with a history of congestive heart failure presents with progressive
shortness of breath, orthopnea, and pedal edema. On auscultation, S3 gallop is heard.
Which of the following medications is MOST appropriate for improving mortality in this
patient?
• A) Digoxin
• B) Furosemide
• C) Carvedilol
,• D) Dobutamine
• E) Hydralazine
Answer: C) Carvedilol
Rationale: Carvedilol is a beta-blocker that has been shown to reduce mortality in
patients with heart failure with reduced ejection fraction (HFrEF). The S3 gallop indicates
volume overload and decreased ventricular compliance. Beta-blockers like carvedilol,
metoprolol succinate, and bisoprolol are guideline-directed medical therapy for HFrEF.
Digoxin improves symptoms but not mortality. Furosemide relieves congestion but
doesn't improve mortality. Dobutamine is used in acute decompensated heart failure.
Hydralazine/nitrates are beneficial in African American patients with HFrEF.
Question 3
A 55-year-old male presents with chest pain that occurs with exertion and is relieved by
rest. Electrocardiogram shows ST-segment depression during exercise stress testing.
Which of the following best describes the pathophysiology of this condition?
• A) Complete occlusion of a coronary artery
• B) Inadequate oxygen supply relative to myocardial demand
• C) Inflammation of the pericardial sac
• D) Aortic valve stenosis
• E) Pulmonary hypertension
Answer: B) Inadequate oxygen supply relative to myocardial demand
Rationale: Stable angina occurs when there is a fixed coronary artery stenosis that
limits blood flow. During exertion, myocardial oxygen demand increases, but supply
cannot meet demand due to the fixed obstruction. This leads to reversible ischemia.
Complete occlusion causes acute myocardial infarction. Pericarditis is inflammation of the
pericardium. Aortic stenosis causes angina but the primary issue is valvular obstruction.
Pulmonary hypertension causes right-sided heart failure.
Question 4
A 45-year-old obese female presents with palpitations, sweating, and tremor. On
examination, she has a thyroid bruit and proptosis. ECG reveals atrial fibrillation. Which of
the following is the MOST appropriate initial treatment for the rhythm abnormality?
,• A) Digoxin
• B) Amiodarone
• C) Beta-blocker
• D) Verapamil
• E) Cardioversion
Answer: C) Beta-blocker
Rationale: In hyperthyroidism, the first-line treatment for atrial fibrillation is a beta-
blocker to control the ventricular rate. This addresses the adrenergic symptoms caused
by excess thyroid hormone. Digoxin is less effective due to increased clearance.
Amiodarone contains iodine and can worsen hyperthyroidism. Verapamil is a non-
dihydropyridine calcium channel blocker but beta-blockers are preferred. Cardioversion
may be considered after the patient is euthyroid, as atrial fibrillation may resolve with
treatment of the underlying hyperthyroidism.
Question 5
A 68-year-old male with a history of myocardial infarction 5 years ago presents with
progressive dyspnea on exertion. Echocardiogram shows an ejection fraction of 30%.
Which of the following findings is MOST likely to be present on physical examination?
• A) Opening snap
• B) S3 gallop
• C) S4 gallop
• D) Systolic ejection murmur
• E) Pericardial friction rub
Answer: B) S3 gallop
Rationale: S3 gallop is associated with volume overload and decreased ventricular
compliance, commonly seen in heart failure with reduced ejection fraction. It indicates
rapid ventricular filling in early diastole. S4 gallop is associated with decreased ventricular
compliance and is heard in hypertrophic cardiomyopathy or aortic stenosis. An opening
snap is characteristic of mitral stenosis. A systolic ejection murmur is heard in aortic
stenosis or hypertrophic cardiomyopathy. A pericardial friction rub indicates pericarditis.
Question 6
A 60-year-old male with a history of smoking and hypertension presents with acute
, onset of left-sided weakness and facial droop. Which of the following medications should
be administered if the patient presents within 3 hours of symptom onset and has no
contraindications?
• A) Aspirin
• B) Heparin
• C) Tissue plasminogen activator (tPA)
• D) Clopidogrel
• E) Warfarin
Answer: C) Tissue plasminogen activator (tPA)
Rationale: Intravenous tPA is the standard of care for acute ischemic stroke within 3-
4.5 hours of symptom onset, provided there are no contraindications. It works by
dissolving the clot causing the stroke. Aspirin is given within 24-48 hours but not
immediately as it may increase bleeding risk if tPA is given. Heparin is not routinely
recommended for acute stroke. Clopidogrel is used for secondary prevention. Warfarin is
used for atrial fibrillation-related stroke prevention but not acutely.
Question 7
A 50-year-old male with Marfan syndrome presents with acute, severe chest pain
radiating to the back. On examination, blood pressure is 190/110 mmHg. Which of the
following is the MOST appropriate initial management?
• A) Beta-blockers
• B) Nitroglycerin
• C) Morphine
• D) Aspirin
• E) Heparin
Answer: A) Beta-blockers
Rationale: In aortic dissection, the initial management includes reducing blood
pressure and heart rate to decrease aortic wall stress. Beta-blockers such as esmolol or
labetalol are the medications of choice. The target heart rate is 60 beats/min and systolic
blood pressure is 100-120 mmHg. Nitroglycerin can cause reflex tachycardia, which is
detrimental. Morphine helps with pain but doesn't address the underlying
pathophysiology. Aspirin and heparin are for acute coronary syndrome, not aortic
dissection.
ANSWERS | VERIFIED AND WELL DETAILED ANSWERS | PLUS
RATIONALES | GUARANTEED PASS | LATEST EXAM UPDATE.
Question 1
A 65-year-old male with a history of hypertension presents with sudden onset of severe,
tearing chest pain radiating to the back. Blood pressure is 180/100 mmHg in the right
arm and 140/90 mmHg in the left arm. Which of the following is the most likely
diagnosis?
• A) Myocardial infarction
• B) Pulmonary embolism
• C) Aortic dissection
• D) Pericarditis
• E) Esophageal rupture
Answer: C) Aortic dissection
Rationale: Aortic dissection typically presents with acute, severe chest pain that
radiates to the back. The key finding is a difference in blood pressure between arms (>20
mmHg). Risk factors include hypertension and connective tissue disorders. Myocardial
infarction typically presents with crushing substernal chest pain, not back radiation.
Pulmonary embolism presents with acute dyspnea and pleuritic chest pain. Pericarditis
pain is typically sharp and positional.
Question 2
A 72-year-old female with a history of congestive heart failure presents with progressive
shortness of breath, orthopnea, and pedal edema. On auscultation, S3 gallop is heard.
Which of the following medications is MOST appropriate for improving mortality in this
patient?
• A) Digoxin
• B) Furosemide
• C) Carvedilol
,• D) Dobutamine
• E) Hydralazine
Answer: C) Carvedilol
Rationale: Carvedilol is a beta-blocker that has been shown to reduce mortality in
patients with heart failure with reduced ejection fraction (HFrEF). The S3 gallop indicates
volume overload and decreased ventricular compliance. Beta-blockers like carvedilol,
metoprolol succinate, and bisoprolol are guideline-directed medical therapy for HFrEF.
Digoxin improves symptoms but not mortality. Furosemide relieves congestion but
doesn't improve mortality. Dobutamine is used in acute decompensated heart failure.
Hydralazine/nitrates are beneficial in African American patients with HFrEF.
Question 3
A 55-year-old male presents with chest pain that occurs with exertion and is relieved by
rest. Electrocardiogram shows ST-segment depression during exercise stress testing.
Which of the following best describes the pathophysiology of this condition?
• A) Complete occlusion of a coronary artery
• B) Inadequate oxygen supply relative to myocardial demand
• C) Inflammation of the pericardial sac
• D) Aortic valve stenosis
• E) Pulmonary hypertension
Answer: B) Inadequate oxygen supply relative to myocardial demand
Rationale: Stable angina occurs when there is a fixed coronary artery stenosis that
limits blood flow. During exertion, myocardial oxygen demand increases, but supply
cannot meet demand due to the fixed obstruction. This leads to reversible ischemia.
Complete occlusion causes acute myocardial infarction. Pericarditis is inflammation of the
pericardium. Aortic stenosis causes angina but the primary issue is valvular obstruction.
Pulmonary hypertension causes right-sided heart failure.
Question 4
A 45-year-old obese female presents with palpitations, sweating, and tremor. On
examination, she has a thyroid bruit and proptosis. ECG reveals atrial fibrillation. Which of
the following is the MOST appropriate initial treatment for the rhythm abnormality?
,• A) Digoxin
• B) Amiodarone
• C) Beta-blocker
• D) Verapamil
• E) Cardioversion
Answer: C) Beta-blocker
Rationale: In hyperthyroidism, the first-line treatment for atrial fibrillation is a beta-
blocker to control the ventricular rate. This addresses the adrenergic symptoms caused
by excess thyroid hormone. Digoxin is less effective due to increased clearance.
Amiodarone contains iodine and can worsen hyperthyroidism. Verapamil is a non-
dihydropyridine calcium channel blocker but beta-blockers are preferred. Cardioversion
may be considered after the patient is euthyroid, as atrial fibrillation may resolve with
treatment of the underlying hyperthyroidism.
Question 5
A 68-year-old male with a history of myocardial infarction 5 years ago presents with
progressive dyspnea on exertion. Echocardiogram shows an ejection fraction of 30%.
Which of the following findings is MOST likely to be present on physical examination?
• A) Opening snap
• B) S3 gallop
• C) S4 gallop
• D) Systolic ejection murmur
• E) Pericardial friction rub
Answer: B) S3 gallop
Rationale: S3 gallop is associated with volume overload and decreased ventricular
compliance, commonly seen in heart failure with reduced ejection fraction. It indicates
rapid ventricular filling in early diastole. S4 gallop is associated with decreased ventricular
compliance and is heard in hypertrophic cardiomyopathy or aortic stenosis. An opening
snap is characteristic of mitral stenosis. A systolic ejection murmur is heard in aortic
stenosis or hypertrophic cardiomyopathy. A pericardial friction rub indicates pericarditis.
Question 6
A 60-year-old male with a history of smoking and hypertension presents with acute
, onset of left-sided weakness and facial droop. Which of the following medications should
be administered if the patient presents within 3 hours of symptom onset and has no
contraindications?
• A) Aspirin
• B) Heparin
• C) Tissue plasminogen activator (tPA)
• D) Clopidogrel
• E) Warfarin
Answer: C) Tissue plasminogen activator (tPA)
Rationale: Intravenous tPA is the standard of care for acute ischemic stroke within 3-
4.5 hours of symptom onset, provided there are no contraindications. It works by
dissolving the clot causing the stroke. Aspirin is given within 24-48 hours but not
immediately as it may increase bleeding risk if tPA is given. Heparin is not routinely
recommended for acute stroke. Clopidogrel is used for secondary prevention. Warfarin is
used for atrial fibrillation-related stroke prevention but not acutely.
Question 7
A 50-year-old male with Marfan syndrome presents with acute, severe chest pain
radiating to the back. On examination, blood pressure is 190/110 mmHg. Which of the
following is the MOST appropriate initial management?
• A) Beta-blockers
• B) Nitroglycerin
• C) Morphine
• D) Aspirin
• E) Heparin
Answer: A) Beta-blockers
Rationale: In aortic dissection, the initial management includes reducing blood
pressure and heart rate to decrease aortic wall stress. Beta-blockers such as esmolol or
labetalol are the medications of choice. The target heart rate is 60 beats/min and systolic
blood pressure is 100-120 mmHg. Nitroglycerin can cause reflex tachycardia, which is
detrimental. Morphine helps with pain but doesn't address the underlying
pathophysiology. Aspirin and heparin are for acute coronary syndrome, not aortic
dissection.
