BIOL 3214 HESI PATHOPHYSIOLOGY
PRACTICE EXAM QUESTIONS AND
CORRECT ANSWERS (VERIFIED
ANSWERS) PLUS RATIONALES 2026
Q&A | INSTANT DOWNLOAD PDF.
Core Domains
• Cellular Adaptation, Injury, and Death
• Genetics and Genetic Disorders
• Inflammation and Immune Response
• Fluid, Electrolyte, and Acid-Base Balance
• Cardiovascular Pathophysiology
• Respiratory Pathophysiology
• Renal and Urinary Pathophysiology
• Gastrointestinal and Hepatobiliary Pathophysiology
• Endocrine Pathophysiology
• Neurological and Musculoskeletal Pathophysiology
Introduction
This comprehensive examination evaluates mastery of pathophysiological
concepts essential for advanced nursing and health science practice. It
assesses understanding of disease mechanisms, cellular alterations, and
systemic responses across the lifespan. The test employs multiple-choice
and scenario-based questions that require critical thinking and clinical
application of pathophysiological principles. Emphasis is placed on linking
underlying mechanisms to clinical manifestations, diagnostic findings, and
treatment rationale. This assessment serves as a critical measure of
,readiness for professional practice and evidence-based clinical decision-
making.
Section One: Questions 1–100
1. A patient with chronic obstructive pulmonary disease (COPD)
develops cor pulmonale. Which pathophysiological mechanism
best explains this complication?
A. Left ventricular hypertrophy due to systemic hypertension
B. Right ventricular hypertrophy due to pulmonary hypertension
C. Left ventricular dilation due to aortic stenosis
D. Right ventricular atrophy due to decreased preload
B. Right ventricular hypertrophy due to pulmonary hypertension
RATIONALE: COPD causes chronic hypoxemia and destruction of
pulmonary vasculature, leading to pulmonary hypertension. The right
ventricle must work harder to pump blood into the lungs, resulting in
right ventricular hypertrophy and eventually right-sided heart failure
(cor pulmonale).
2. A patient with type 1 diabetes mellitus presents with fruity-
smelling breath and deep, rapid respirations. Which acid-base
imbalance is most likely?
A. Metabolic alkalosis
B. Respiratory acidosis
C. Metabolic acidosis
D. Respiratory alkalosis
C. Metabolic acidosis
RATIONALE: Diabetic ketoacidosis produces ketone bodies (acids),
leading to metabolic acidosis. Kussmaul respirations (deep, rapid
breathing) are a compensatory mechanism to blow off carbon dioxide.
, 3. A patient with a history of heart failure is prescribed both
furosemide and digoxin. Which electrolyte imbalance increases
the risk of digoxin toxicity?
A. Hypernatremia
B. Hyperkalemia
C. Hypokalemia
D. Hypercalcemia
C. Hypokalemia
RATIONALE: Furosemide is a loop diuretic that causes potassium
loss. Hypokalemia increases the sensitivity of the myocardium to
digoxin, increasing the risk of toxicity. Potassium levels should be
monitored closely.
4. A patient with cirrhosis develops hepatic encephalopathy. Which
pathophysiological mechanism is primarily responsible?
A. Increased ammonia levels due to impaired urea cycle
B. Decreased bilirubin conjugation
C. Portal hypertension causing varices
D. Decreased albumin synthesis causing ascites
A. Increased ammonia levels due to impaired urea cycle
RATIONALE: The liver converts ammonia to urea for excretion. In
cirrhosis, this function is impaired, leading to elevated ammonia levels,
which are neurotoxic and contribute to hepatic encephalopathy.
5. A patient with acute kidney injury has a serum potassium level of
6.8 mEq/L. Which ECG finding is most concerning?
A. Peaked T waves
B. U waves
C. Prolonged QT interval
D. ST depression
A. Peaked T waves
, RATIONALE: Hyperkalemia causes tall, peaked T waves, widened
QRS complexes, and eventually ventricular fibrillation or asystole.
Peaked T waves are an early and classic ECG sign.
6. A patient with rheumatoid arthritis has an elevated erythrocyte
sedimentation rate (ESR) and C-reactive protein (CRP). These
findings indicate:
A. Anemia
B. Inflammation
C. Infection
D. Malignancy
B. Inflammation
RATIONALE: ESR and CRP are acute-phase reactants that are
elevated in inflammatory conditions, including autoimmune diseases
like rheumatoid arthritis.
7. A patient with a spinal cord injury at T6 develops a severe
headache, hypertension, and bradycardia. This is most consistent
with:
A. Autonomic dysreflexia
B. Spinal shock
C. Neurogenic shock
D. Orthostatic hypotension
A. Autonomic dysreflexia
RATIONALE: Autonomic dysreflexia occurs in patients with spinal
cord injuries above T6. It is characterized by severe hypertension,
headache, bradycardia, and sweating due to unopposed sympathetic
stimulation below the level of injury.
8. A patient with myasthenia gravis has muscle weakness that
worsens with activity. This is due to:
PRACTICE EXAM QUESTIONS AND
CORRECT ANSWERS (VERIFIED
ANSWERS) PLUS RATIONALES 2026
Q&A | INSTANT DOWNLOAD PDF.
Core Domains
• Cellular Adaptation, Injury, and Death
• Genetics and Genetic Disorders
• Inflammation and Immune Response
• Fluid, Electrolyte, and Acid-Base Balance
• Cardiovascular Pathophysiology
• Respiratory Pathophysiology
• Renal and Urinary Pathophysiology
• Gastrointestinal and Hepatobiliary Pathophysiology
• Endocrine Pathophysiology
• Neurological and Musculoskeletal Pathophysiology
Introduction
This comprehensive examination evaluates mastery of pathophysiological
concepts essential for advanced nursing and health science practice. It
assesses understanding of disease mechanisms, cellular alterations, and
systemic responses across the lifespan. The test employs multiple-choice
and scenario-based questions that require critical thinking and clinical
application of pathophysiological principles. Emphasis is placed on linking
underlying mechanisms to clinical manifestations, diagnostic findings, and
treatment rationale. This assessment serves as a critical measure of
,readiness for professional practice and evidence-based clinical decision-
making.
Section One: Questions 1–100
1. A patient with chronic obstructive pulmonary disease (COPD)
develops cor pulmonale. Which pathophysiological mechanism
best explains this complication?
A. Left ventricular hypertrophy due to systemic hypertension
B. Right ventricular hypertrophy due to pulmonary hypertension
C. Left ventricular dilation due to aortic stenosis
D. Right ventricular atrophy due to decreased preload
B. Right ventricular hypertrophy due to pulmonary hypertension
RATIONALE: COPD causes chronic hypoxemia and destruction of
pulmonary vasculature, leading to pulmonary hypertension. The right
ventricle must work harder to pump blood into the lungs, resulting in
right ventricular hypertrophy and eventually right-sided heart failure
(cor pulmonale).
2. A patient with type 1 diabetes mellitus presents with fruity-
smelling breath and deep, rapid respirations. Which acid-base
imbalance is most likely?
A. Metabolic alkalosis
B. Respiratory acidosis
C. Metabolic acidosis
D. Respiratory alkalosis
C. Metabolic acidosis
RATIONALE: Diabetic ketoacidosis produces ketone bodies (acids),
leading to metabolic acidosis. Kussmaul respirations (deep, rapid
breathing) are a compensatory mechanism to blow off carbon dioxide.
, 3. A patient with a history of heart failure is prescribed both
furosemide and digoxin. Which electrolyte imbalance increases
the risk of digoxin toxicity?
A. Hypernatremia
B. Hyperkalemia
C. Hypokalemia
D. Hypercalcemia
C. Hypokalemia
RATIONALE: Furosemide is a loop diuretic that causes potassium
loss. Hypokalemia increases the sensitivity of the myocardium to
digoxin, increasing the risk of toxicity. Potassium levels should be
monitored closely.
4. A patient with cirrhosis develops hepatic encephalopathy. Which
pathophysiological mechanism is primarily responsible?
A. Increased ammonia levels due to impaired urea cycle
B. Decreased bilirubin conjugation
C. Portal hypertension causing varices
D. Decreased albumin synthesis causing ascites
A. Increased ammonia levels due to impaired urea cycle
RATIONALE: The liver converts ammonia to urea for excretion. In
cirrhosis, this function is impaired, leading to elevated ammonia levels,
which are neurotoxic and contribute to hepatic encephalopathy.
5. A patient with acute kidney injury has a serum potassium level of
6.8 mEq/L. Which ECG finding is most concerning?
A. Peaked T waves
B. U waves
C. Prolonged QT interval
D. ST depression
A. Peaked T waves
, RATIONALE: Hyperkalemia causes tall, peaked T waves, widened
QRS complexes, and eventually ventricular fibrillation or asystole.
Peaked T waves are an early and classic ECG sign.
6. A patient with rheumatoid arthritis has an elevated erythrocyte
sedimentation rate (ESR) and C-reactive protein (CRP). These
findings indicate:
A. Anemia
B. Inflammation
C. Infection
D. Malignancy
B. Inflammation
RATIONALE: ESR and CRP are acute-phase reactants that are
elevated in inflammatory conditions, including autoimmune diseases
like rheumatoid arthritis.
7. A patient with a spinal cord injury at T6 develops a severe
headache, hypertension, and bradycardia. This is most consistent
with:
A. Autonomic dysreflexia
B. Spinal shock
C. Neurogenic shock
D. Orthostatic hypotension
A. Autonomic dysreflexia
RATIONALE: Autonomic dysreflexia occurs in patients with spinal
cord injuries above T6. It is characterized by severe hypertension,
headache, bradycardia, and sweating due to unopposed sympathetic
stimulation below the level of injury.
8. A patient with myasthenia gravis has muscle weakness that
worsens with activity. This is due to:
