APEA Predictor Exam Blueprint 2026
Comprehensive Practice Questions with Verified
Correct Answers & Detailed Rationales | Graded
A+ | 120 Questions
QUESTION 1
A 55-year-old male with a 30-pack-year smoking history presents with a persistent
cough, hemoptysis, and unintentional weight loss of 15 pounds over 3 months.
Chest X-ray reveals a right lower lobe mass. What is the most likely diagnosis?
A. Tuberculosis
B. Lung abscess
C. Bronchogenic carcinoma
D. Sarcoidosis
Rationale: Persistent cough, hemoptysis, weight loss, and a history of smoking in
a patient with significant smoking history is highly suggestive of bronchogenic
carcinoma (lung cancer). The combination of risk factors (smoking), symptoms
(cough, hemoptysis, weight loss), and imaging findings (mass) makes lung cancer
the most likely diagnosis.
QUESTION 2
A 68-year-old male with a history of hypertension and diabetes presents with
sudden onset of severe chest pain radiating to his back, with a difference in blood
pressure between his arms (SBP 160 mmHg in right arm, 110 mmHg in left arm).
What is the most likely diagnosis?
A. Myocardial infarction
B. Pulmonary embolism
C. Aortic dissection
D. Pericarditis
Rationale: Aortic dissection presents with sudden, severe chest pain radiating to
the back, often accompanied by a difference in blood pressure between arms. Risk
,factors include hypertension and connective tissue disorders. The classic
presentation and pulse differential strongly suggest aortic dissection, which
requires immediate diagnosis and management.
QUESTION 3
A 72-year-old female with a history of hypertension and hyperlipidemia presents
with progressive shortness of breath, orthopnea, and paroxysmal nocturnal
dyspnea. On exam, she has jugular venous distension, crackles in the lung bases,
and lower extremity edema. What is the most likely diagnosis?
A. Chronic obstructive pulmonary disease
B. Pulmonary embolism
C. Congestive heart failure
D. Pneumonia
Rationale: The classic triad of dyspnea, orthopnea, and paroxysmal nocturnal
dyspnea (PND), along with signs of fluid overload (JVD, crackles, edema), points
to congestive heart failure. The patient's risk factors (hypertension, hyperlipidemia)
support this diagnosis.
QUESTION 4
A 45-year-old female presents with palpitations, heat intolerance, weight loss
despite increased appetite, and anxiety. On exam, she has tachycardia and a fine
tremor. Which of the following is the most likely diagnosis?
A. Hypothyroidism
B. Hyperthyroidism
C. Atrial fibrillation
D. Panic disorder
Rationale: The symptoms of palpitations, heat intolerance, weight loss, increased
appetite, anxiety, tachycardia, and fine tremor are classic manifestations of
hyperthyroidism. Graves' disease is the most common cause.
QUESTION 5
,A 60-year-old male with a history of coronary artery disease presents with chest
pain that occurs at rest and is relieved by nitroglycerin. Which of the following is
the most appropriate initial diagnostic test?
A. Chest X-ray
B. Electrocardiogram (ECG)
C. Complete blood count
D. Cardiac enzymes
Rationale: An electrocardiogram (ECG) is the most appropriate initial diagnostic
test for chest pain in a patient with suspected cardiac ischemia. It can reveal ST-
segment changes indicative of myocardial ischemia or infarction.
QUESTION 6
A patient presents with an S3 gallop on cardiac auscultation. This finding is most
commonly associated with which condition?
A. Aortic stenosis
B. Congestive heart failure
C. Mitral regurgitation
D. Pericarditis
Rationale: An S3 gallop is an early diastolic filling sound that is often heard in
conditions of increased ventricular filling pressure, most commonly congestive
heart failure. It is a significant finding indicating decreased ventricular compliance.
QUESTION 7
Which of the following is a classic sign of infective endocarditis?
A. Osler's nodes
B. Heberden's nodes
C. Bouchard's nodes
D. Swan neck deformity
Rationale: Osler's nodes are painful, erythematous nodules on the pads of the
fingers and toes, which are classic signs of infective endocarditis. Other signs
include Janeway lesions, splinter hemorrhages, and Roth spots.
, QUESTION 8
A 55-year-old female with a history of hypertension presents with a blood pressure
of 155/95 mmHg on two separate occasions. According to JNC 8 guidelines, what
is the recommended initial treatment?
A. Lifestyle modifications only
B. Start a thiazide diuretic or ACE inhibitor
C. Start a beta-blocker
D. Start a calcium channel blocker
Rationale: According to JNC 8 guidelines for patients aged 60 years or older, the
target blood pressure is less than 150/90 mmHg. For patients with hypertension,
initial treatment options include a thiazide diuretic, calcium channel blocker, ACE
inhibitor, or ARB.
QUESTION 9
What is the most common cause of valvular heart disease in the United States?
A. Rheumatic heart disease
B. Degenerative calcific disease
C. Congenital abnormalities
D. Infective endocarditis
Rationale: Degenerative calcific disease is the most common cause of valvular
heart disease in the United States, particularly affecting the aortic valve. It is
associated with aging and risk factors such as hypertension, diabetes, and
hyperlipidemia.
QUESTION 10
A 75-year-old male presents with fatigue, exertional dyspnea, and syncope. On
exam, he has a systolic ejection murmur that radiates to the carotid arteries and a
diminished S2. What is the most likely diagnosis?
A. Mitral stenosis
B. Aortic stenosis
Comprehensive Practice Questions with Verified
Correct Answers & Detailed Rationales | Graded
A+ | 120 Questions
QUESTION 1
A 55-year-old male with a 30-pack-year smoking history presents with a persistent
cough, hemoptysis, and unintentional weight loss of 15 pounds over 3 months.
Chest X-ray reveals a right lower lobe mass. What is the most likely diagnosis?
A. Tuberculosis
B. Lung abscess
C. Bronchogenic carcinoma
D. Sarcoidosis
Rationale: Persistent cough, hemoptysis, weight loss, and a history of smoking in
a patient with significant smoking history is highly suggestive of bronchogenic
carcinoma (lung cancer). The combination of risk factors (smoking), symptoms
(cough, hemoptysis, weight loss), and imaging findings (mass) makes lung cancer
the most likely diagnosis.
QUESTION 2
A 68-year-old male with a history of hypertension and diabetes presents with
sudden onset of severe chest pain radiating to his back, with a difference in blood
pressure between his arms (SBP 160 mmHg in right arm, 110 mmHg in left arm).
What is the most likely diagnosis?
A. Myocardial infarction
B. Pulmonary embolism
C. Aortic dissection
D. Pericarditis
Rationale: Aortic dissection presents with sudden, severe chest pain radiating to
the back, often accompanied by a difference in blood pressure between arms. Risk
,factors include hypertension and connective tissue disorders. The classic
presentation and pulse differential strongly suggest aortic dissection, which
requires immediate diagnosis and management.
QUESTION 3
A 72-year-old female with a history of hypertension and hyperlipidemia presents
with progressive shortness of breath, orthopnea, and paroxysmal nocturnal
dyspnea. On exam, she has jugular venous distension, crackles in the lung bases,
and lower extremity edema. What is the most likely diagnosis?
A. Chronic obstructive pulmonary disease
B. Pulmonary embolism
C. Congestive heart failure
D. Pneumonia
Rationale: The classic triad of dyspnea, orthopnea, and paroxysmal nocturnal
dyspnea (PND), along with signs of fluid overload (JVD, crackles, edema), points
to congestive heart failure. The patient's risk factors (hypertension, hyperlipidemia)
support this diagnosis.
QUESTION 4
A 45-year-old female presents with palpitations, heat intolerance, weight loss
despite increased appetite, and anxiety. On exam, she has tachycardia and a fine
tremor. Which of the following is the most likely diagnosis?
A. Hypothyroidism
B. Hyperthyroidism
C. Atrial fibrillation
D. Panic disorder
Rationale: The symptoms of palpitations, heat intolerance, weight loss, increased
appetite, anxiety, tachycardia, and fine tremor are classic manifestations of
hyperthyroidism. Graves' disease is the most common cause.
QUESTION 5
,A 60-year-old male with a history of coronary artery disease presents with chest
pain that occurs at rest and is relieved by nitroglycerin. Which of the following is
the most appropriate initial diagnostic test?
A. Chest X-ray
B. Electrocardiogram (ECG)
C. Complete blood count
D. Cardiac enzymes
Rationale: An electrocardiogram (ECG) is the most appropriate initial diagnostic
test for chest pain in a patient with suspected cardiac ischemia. It can reveal ST-
segment changes indicative of myocardial ischemia or infarction.
QUESTION 6
A patient presents with an S3 gallop on cardiac auscultation. This finding is most
commonly associated with which condition?
A. Aortic stenosis
B. Congestive heart failure
C. Mitral regurgitation
D. Pericarditis
Rationale: An S3 gallop is an early diastolic filling sound that is often heard in
conditions of increased ventricular filling pressure, most commonly congestive
heart failure. It is a significant finding indicating decreased ventricular compliance.
QUESTION 7
Which of the following is a classic sign of infective endocarditis?
A. Osler's nodes
B. Heberden's nodes
C. Bouchard's nodes
D. Swan neck deformity
Rationale: Osler's nodes are painful, erythematous nodules on the pads of the
fingers and toes, which are classic signs of infective endocarditis. Other signs
include Janeway lesions, splinter hemorrhages, and Roth spots.
, QUESTION 8
A 55-year-old female with a history of hypertension presents with a blood pressure
of 155/95 mmHg on two separate occasions. According to JNC 8 guidelines, what
is the recommended initial treatment?
A. Lifestyle modifications only
B. Start a thiazide diuretic or ACE inhibitor
C. Start a beta-blocker
D. Start a calcium channel blocker
Rationale: According to JNC 8 guidelines for patients aged 60 years or older, the
target blood pressure is less than 150/90 mmHg. For patients with hypertension,
initial treatment options include a thiazide diuretic, calcium channel blocker, ACE
inhibitor, or ARB.
QUESTION 9
What is the most common cause of valvular heart disease in the United States?
A. Rheumatic heart disease
B. Degenerative calcific disease
C. Congenital abnormalities
D. Infective endocarditis
Rationale: Degenerative calcific disease is the most common cause of valvular
heart disease in the United States, particularly affecting the aortic valve. It is
associated with aging and risk factors such as hypertension, diabetes, and
hyperlipidemia.
QUESTION 10
A 75-year-old male presents with fatigue, exertional dyspnea, and syncope. On
exam, he has a systolic ejection murmur that radiates to the carotid arteries and a
diminished S2. What is the most likely diagnosis?
A. Mitral stenosis
B. Aortic stenosis
