BARKLEY 3P EXAM AND PRACTICE EXAM Questions with Correct
Answers & Rationales Updated for Verified A+ Content
Question 1
A 55-year-old male with a 30-pack-year smoking history presents with a chronic cough,
hemoptysis, and weight loss. Chest X-ray shows a hilar mass. Which of the following is
the most likely diagnosis?
A) Tuberculosis
B) Small cell lung cancer
C) Sarcoidosis
D) Pneumonia
Rationale: Small cell lung cancer is strongly associated with smoking and typically
presents with a hilar mass, chronic cough, hemoptysis, and constitutional symptoms such
as weight loss. It is the most aggressive form of lung cancer and is often metastatic at
presentation. Tuberculosis presents with fever and night sweats. Sarcoidosis typically
presents with bilateral hilar adenopathy without the rapid weight loss.
Question 2
A patient with chronic liver disease develops ascites, jaundice, and asterixis. Which of the
following is the most likely underlying mechanism for the asterixis?
A) Hepatic encephalopathy due to ammonia accumulation
B) Portal hypertension
C) Decreased albumin production
D) Bile salt accumulation
Rationale: Asterixis (liver flap) is a hallmark sign of hepatic encephalopathy, which results
from the accumulation of neurotoxic substances such as ammonia due to impaired liver
,function. Portal hypertension causes ascites, and decreased albumin leads to edema, but
asterixis specifically indicates hepatic encephalopathy.
Question 3
Which of the following best describes the pathophysiology of prerenal acute kidney
injury?
A) Direct damage to renal tubules
B) Decreased renal perfusion leading to decreased GFR
C) Obstruction of urine flow
D) Immune-mediated glomerular damage
Rationale: Prerenal AKI results from decreased renal blood flow (hypoperfusion) leading
to a reduction in GFR. Causes include hypovolemia, heart failure, sepsis, and renal artery
stenosis. Unlike intrinsic renal injury, prerenal AKI is reversible with restoration of renal
perfusion. ATN involves tubular damage, and postrenal obstruction involves urine flow
obstruction.
Question 4
A patient with systemic lupus erythematosus (SLE) develops proteinuria, hematuria, and
hypertension. This presentation is most consistent with which of the following?
A) Lupus nephritis
B) Drug-induced lupus
C) Cutaneous lupus
D) Serositis
Rationale: Lupus nephritis is a severe complication of SLE and presents with proteinuria,
hematuria, and hypertension. It results from immune complex deposition in the glomeruli,
leading to inflammation and progressive renal damage. Drug-induced lupus typically does
not cause renal involvement.
,Question 5
A patient with a history of myocardial infarction is prescribed aspirin and clopidogrel.
Which of the following is the rationale for this combination therapy?
A) Dual antiplatelet therapy to reduce stent thrombosis
B) Anticoagulation to prevent DVT
C) Vasodilation to reduce afterload
D) Thrombolysis for acute MI
Rationale: Dual antiplatelet therapy (aspirin + P2Y12 inhibitor such as clopidogrel) is
used to reduce the risk of stent thrombosis in patients who have undergone percutaneous
coronary intervention (PCI) with stent placement. Aspirin inhibits COX-1 and clopidogrel
inhibits ADP-mediated platelet aggregation.
Question 6
A 62-year-old female presents with fatigue, pale skin, and a smooth tongue. Laboratory
findings show macrocytic anemia with hypersegmented neutrophils. Which of the
following is the most likely diagnosis?
A) Iron deficiency anemia
B) Vitamin B12 deficiency
C) Sideroblastic anemia
D) Aplastic anemia
Rationale: Vitamin B12 deficiency presents with macrocytic anemia and hypersegmented
neutrophils (≥5 lobes). The smooth tongue (glossitis) is a classic sign. Iron deficiency
causes microcytic anemia. Sideroblastic anemia presents with ringed sideroblasts. Aplastic
anemia presents with pancytopenia.
Question 7
A patient with type 1 diabetes is found to have microalbuminuria. This finding indicates
which of the following?
, A) Early diabetic nephropathy
B) Overt nephropathy
C) Renal failure
D) Urinary tract infection
Rationale: Microalbuminuria (30-300 mg/day) is the earliest clinical sign of diabetic
nephropathy and is a strong predictor of progression to overt proteinuria and renal failure.
Overt nephropathy is defined as proteinuria >300 mg/day. Regular screening is essential
to initiate nephroprotective therapy.
Question 8
A patient with asthma has an acute exacerbation unresponsive to nebulized albuterol.
Which of the following is the most appropriate next step?
A) Systemic corticosteroids
B) Leukotriene receptor antagonist
C) Inhaled corticosteroid
D) Theophylline
Rationale: In an acute asthma exacerbation that is unresponsive to bronchodilators,
systemic corticosteroids are the most appropriate next step to reduce airway inflammation.
Inhaled corticosteroids are used for maintenance, not acute exacerbation. Theophylline is
not a first-line agent for acute exacerbations.
Question 9
A 45-year-old male presents with a painless lump in his neck. Fine needle aspiration
reveals malignant cells. Which of the following is the most common malignancy
presenting as a neck mass in adults?
A) Squamous cell carcinoma
B) Lymphoma
C) Thyroid cancer
D) Salivary gland tumor
Answers & Rationales Updated for Verified A+ Content
Question 1
A 55-year-old male with a 30-pack-year smoking history presents with a chronic cough,
hemoptysis, and weight loss. Chest X-ray shows a hilar mass. Which of the following is
the most likely diagnosis?
A) Tuberculosis
B) Small cell lung cancer
C) Sarcoidosis
D) Pneumonia
Rationale: Small cell lung cancer is strongly associated with smoking and typically
presents with a hilar mass, chronic cough, hemoptysis, and constitutional symptoms such
as weight loss. It is the most aggressive form of lung cancer and is often metastatic at
presentation. Tuberculosis presents with fever and night sweats. Sarcoidosis typically
presents with bilateral hilar adenopathy without the rapid weight loss.
Question 2
A patient with chronic liver disease develops ascites, jaundice, and asterixis. Which of the
following is the most likely underlying mechanism for the asterixis?
A) Hepatic encephalopathy due to ammonia accumulation
B) Portal hypertension
C) Decreased albumin production
D) Bile salt accumulation
Rationale: Asterixis (liver flap) is a hallmark sign of hepatic encephalopathy, which results
from the accumulation of neurotoxic substances such as ammonia due to impaired liver
,function. Portal hypertension causes ascites, and decreased albumin leads to edema, but
asterixis specifically indicates hepatic encephalopathy.
Question 3
Which of the following best describes the pathophysiology of prerenal acute kidney
injury?
A) Direct damage to renal tubules
B) Decreased renal perfusion leading to decreased GFR
C) Obstruction of urine flow
D) Immune-mediated glomerular damage
Rationale: Prerenal AKI results from decreased renal blood flow (hypoperfusion) leading
to a reduction in GFR. Causes include hypovolemia, heart failure, sepsis, and renal artery
stenosis. Unlike intrinsic renal injury, prerenal AKI is reversible with restoration of renal
perfusion. ATN involves tubular damage, and postrenal obstruction involves urine flow
obstruction.
Question 4
A patient with systemic lupus erythematosus (SLE) develops proteinuria, hematuria, and
hypertension. This presentation is most consistent with which of the following?
A) Lupus nephritis
B) Drug-induced lupus
C) Cutaneous lupus
D) Serositis
Rationale: Lupus nephritis is a severe complication of SLE and presents with proteinuria,
hematuria, and hypertension. It results from immune complex deposition in the glomeruli,
leading to inflammation and progressive renal damage. Drug-induced lupus typically does
not cause renal involvement.
,Question 5
A patient with a history of myocardial infarction is prescribed aspirin and clopidogrel.
Which of the following is the rationale for this combination therapy?
A) Dual antiplatelet therapy to reduce stent thrombosis
B) Anticoagulation to prevent DVT
C) Vasodilation to reduce afterload
D) Thrombolysis for acute MI
Rationale: Dual antiplatelet therapy (aspirin + P2Y12 inhibitor such as clopidogrel) is
used to reduce the risk of stent thrombosis in patients who have undergone percutaneous
coronary intervention (PCI) with stent placement. Aspirin inhibits COX-1 and clopidogrel
inhibits ADP-mediated platelet aggregation.
Question 6
A 62-year-old female presents with fatigue, pale skin, and a smooth tongue. Laboratory
findings show macrocytic anemia with hypersegmented neutrophils. Which of the
following is the most likely diagnosis?
A) Iron deficiency anemia
B) Vitamin B12 deficiency
C) Sideroblastic anemia
D) Aplastic anemia
Rationale: Vitamin B12 deficiency presents with macrocytic anemia and hypersegmented
neutrophils (≥5 lobes). The smooth tongue (glossitis) is a classic sign. Iron deficiency
causes microcytic anemia. Sideroblastic anemia presents with ringed sideroblasts. Aplastic
anemia presents with pancytopenia.
Question 7
A patient with type 1 diabetes is found to have microalbuminuria. This finding indicates
which of the following?
, A) Early diabetic nephropathy
B) Overt nephropathy
C) Renal failure
D) Urinary tract infection
Rationale: Microalbuminuria (30-300 mg/day) is the earliest clinical sign of diabetic
nephropathy and is a strong predictor of progression to overt proteinuria and renal failure.
Overt nephropathy is defined as proteinuria >300 mg/day. Regular screening is essential
to initiate nephroprotective therapy.
Question 8
A patient with asthma has an acute exacerbation unresponsive to nebulized albuterol.
Which of the following is the most appropriate next step?
A) Systemic corticosteroids
B) Leukotriene receptor antagonist
C) Inhaled corticosteroid
D) Theophylline
Rationale: In an acute asthma exacerbation that is unresponsive to bronchodilators,
systemic corticosteroids are the most appropriate next step to reduce airway inflammation.
Inhaled corticosteroids are used for maintenance, not acute exacerbation. Theophylline is
not a first-line agent for acute exacerbations.
Question 9
A 45-year-old male presents with a painless lump in his neck. Fine needle aspiration
reveals malignant cells. Which of the following is the most common malignancy
presenting as a neck mass in adults?
A) Squamous cell carcinoma
B) Lymphoma
C) Thyroid cancer
D) Salivary gland tumor
