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MSN 570 ADVANCED PATHOPHYSIOLOGY– COMPREHENSIVE REVIEW
EXAM QUESTIONS LATEST EDITION 2026 – 2027 VERSION SOLVED
QUESTIONS & ANSWERS
MSN 570 Advanced Pathophysiology
Questions with Rationales
1. A 62-year-old male with a 30-year history of poorly controlled hypertension
presents with echocardiographic evidence of left ventricular wall thickening. What
is the primary cellular mechanism driving this adaptive change in his cardiac
muscle cells?
A. Hyperplasia due to increased cell division
B. Hypertrophy due to increased protein synthesis
C. Metaplasia due to cellular reprogramming
D. Dysplasia due to abnormal cell maturation
Correct Answer: B
Rationale: Myocardial cells are permanent cells and cannot undergo mitosis, ruling out
hyperplasia. When faced with a chronic increase in afterload from hypertension, the
myocytes adapt via hypertrophy, which involves an increase in cell size driven by
enhanced protein synthesis and the addition of sarcomeres .
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2. A 45-year-old female with chronic gastroesophageal reflux disease undergoes an
upper endoscopy that reveals replacement of the normal squamous epithelium of
the lower esophagus with columnar epithelium. This cellular adaptation is best
described as which of the following processes?
A. Hypertrophy
B. Hyperplasia
C. Metaplasia
D. Anaplasia
Correct Answer: C
Rationale: Metaplasia is the reversible replacement of one differentiated cell type with
another. In Barrett's esophagus, chronic acid exposure causes the normal squamous
epithelium to be replaced by columnar epithelium, which is more resistant to acid .
3. A 52-year-old female with a history of chronic smoking presents with a persistent
cough. A biopsy of the bronchial mucosa reveals cells that vary in size and shape
with large, hyperchromatic nuclei. This finding is termed:
A. Metaplasia
B. Hyperplasia
C. Dysplasia
D. Atrophy
Correct Answer: C
Rationale: Dysplasia is characterized by cells that vary in size and shape, with large
nuclei and increased mitotic rate. It may result from chronic irritation and is considered
a precancerous change .
4. A patient with a chronic debilitating illness has experienced significant weight
loss and muscle wasting. Which cellular adaptation best explains this finding?
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A. Hyperplasia
B. Hypertrophy
C. Metaplasia
D. Atrophy
Correct Answer: D
Rationale: Atrophy is a decrease in the size of cells, resulting in reduced tissue mass.
Chronic illness, decreased workload, and nutritional deficiency can all lead to atrophy .
5. During an ischemic event, a lack of oxygen leads to a decrease in cellular ATP
production. Which immediate consequence occurs within the cell?
A. Shrinkage of the nucleus
B. Failure of the sodium-potassium pump, leading to cellular swelling
C. Decreased intracellular calcium levels
D. Increased intracellular pH
Correct Answer: B
Rationale: Decreased ATP causes the Na⁺/K⁺ ATPase pump to fail. Sodium
accumulates inside the cell, pulling water in by osmosis, resulting in acute cellular
swelling (hydropic change) .
6. Which type of necrosis is most likely seen in a myocardial infarction?
A. Coagulative necrosis
B. Liquefactive necrosis
C. Caseous necrosis
D. Fat necrosis
Correct Answer: A
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Rationale: Coagulative necrosis is the most common type of necrosis and occurs in
solid organs such as the heart, kidney, and liver following ischemia. The cell
architecture is preserved but the cells are dead .
7. During a focal bacterial infection, destruction of bacteria and immune cells
results in the formation of pus. This type of necrosis is best described as:
A. Coagulative necrosis
B. Liquefactive necrosis
C. Caseous necrosis
D. Fat necrosis
Correct Answer: B
Rationale: Liquefactive necrosis is characterized by enzymatic digestion of tissue,
leading to the formation of pus. It is commonly seen in bacterial infections and in the
brain .
8. Which type of necrosis is most characteristic of tuberculosis infection?
A. Coagulative necrosis
B. Liquefactive necrosis
C. Caseous necrosis
D. Fat necrosis
Correct Answer: C
Rationale: Caseous necrosis is characterized by a "cheesy" white appearance and is
most commonly associated with tuberculosis and fungal infections. It represents a
combination of coagulative and liquefactive necrosis.
9. A patient with acute pancreatitis develops fat necrosis. Which mechanism best
explains this finding?
MSN 570 ADVANCED PATHOPHYSIOLOGY– COMPREHENSIVE REVIEW
EXAM QUESTIONS LATEST EDITION 2026 – 2027 VERSION SOLVED
QUESTIONS & ANSWERS
MSN 570 Advanced Pathophysiology
Questions with Rationales
1. A 62-year-old male with a 30-year history of poorly controlled hypertension
presents with echocardiographic evidence of left ventricular wall thickening. What
is the primary cellular mechanism driving this adaptive change in his cardiac
muscle cells?
A. Hyperplasia due to increased cell division
B. Hypertrophy due to increased protein synthesis
C. Metaplasia due to cellular reprogramming
D. Dysplasia due to abnormal cell maturation
Correct Answer: B
Rationale: Myocardial cells are permanent cells and cannot undergo mitosis, ruling out
hyperplasia. When faced with a chronic increase in afterload from hypertension, the
myocytes adapt via hypertrophy, which involves an increase in cell size driven by
enhanced protein synthesis and the addition of sarcomeres .
, Page 2 of 40
2. A 45-year-old female with chronic gastroesophageal reflux disease undergoes an
upper endoscopy that reveals replacement of the normal squamous epithelium of
the lower esophagus with columnar epithelium. This cellular adaptation is best
described as which of the following processes?
A. Hypertrophy
B. Hyperplasia
C. Metaplasia
D. Anaplasia
Correct Answer: C
Rationale: Metaplasia is the reversible replacement of one differentiated cell type with
another. In Barrett's esophagus, chronic acid exposure causes the normal squamous
epithelium to be replaced by columnar epithelium, which is more resistant to acid .
3. A 52-year-old female with a history of chronic smoking presents with a persistent
cough. A biopsy of the bronchial mucosa reveals cells that vary in size and shape
with large, hyperchromatic nuclei. This finding is termed:
A. Metaplasia
B. Hyperplasia
C. Dysplasia
D. Atrophy
Correct Answer: C
Rationale: Dysplasia is characterized by cells that vary in size and shape, with large
nuclei and increased mitotic rate. It may result from chronic irritation and is considered
a precancerous change .
4. A patient with a chronic debilitating illness has experienced significant weight
loss and muscle wasting. Which cellular adaptation best explains this finding?
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A. Hyperplasia
B. Hypertrophy
C. Metaplasia
D. Atrophy
Correct Answer: D
Rationale: Atrophy is a decrease in the size of cells, resulting in reduced tissue mass.
Chronic illness, decreased workload, and nutritional deficiency can all lead to atrophy .
5. During an ischemic event, a lack of oxygen leads to a decrease in cellular ATP
production. Which immediate consequence occurs within the cell?
A. Shrinkage of the nucleus
B. Failure of the sodium-potassium pump, leading to cellular swelling
C. Decreased intracellular calcium levels
D. Increased intracellular pH
Correct Answer: B
Rationale: Decreased ATP causes the Na⁺/K⁺ ATPase pump to fail. Sodium
accumulates inside the cell, pulling water in by osmosis, resulting in acute cellular
swelling (hydropic change) .
6. Which type of necrosis is most likely seen in a myocardial infarction?
A. Coagulative necrosis
B. Liquefactive necrosis
C. Caseous necrosis
D. Fat necrosis
Correct Answer: A
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Rationale: Coagulative necrosis is the most common type of necrosis and occurs in
solid organs such as the heart, kidney, and liver following ischemia. The cell
architecture is preserved but the cells are dead .
7. During a focal bacterial infection, destruction of bacteria and immune cells
results in the formation of pus. This type of necrosis is best described as:
A. Coagulative necrosis
B. Liquefactive necrosis
C. Caseous necrosis
D. Fat necrosis
Correct Answer: B
Rationale: Liquefactive necrosis is characterized by enzymatic digestion of tissue,
leading to the formation of pus. It is commonly seen in bacterial infections and in the
brain .
8. Which type of necrosis is most characteristic of tuberculosis infection?
A. Coagulative necrosis
B. Liquefactive necrosis
C. Caseous necrosis
D. Fat necrosis
Correct Answer: C
Rationale: Caseous necrosis is characterized by a "cheesy" white appearance and is
most commonly associated with tuberculosis and fungal infections. It represents a
combination of coagulative and liquefactive necrosis.
9. A patient with acute pancreatitis develops fat necrosis. Which mechanism best
explains this finding?
