NR 507 ADVANCED
PATHOPHYSIOLOGY
COMPREHENSIVE EXAM QUESTIONS
WITH VERIFIED ANSWERS 2026/2027.
CHAMBERLAIN
1. A patient with chronic hypertension exhibits thickening of the left ventricular wall. Which
cellular adaptation is occurring?
A. Metaplasia
B. Atrophy
C. Hyperplasia
D. Hypertrophy
Answer: D
Conceptual Explanation: Hypertrophy is an increase in the size of cells in response to
mechanical load or stress, such as hypertension, leading to an increase in the size of the
organ.
2. In the state of hypoxic cell injury, what is the primary cause of cellular swelling?
A. Increased intracellular protein synthesis
B. Release of lysosomal enzymes
,C. Failure of the Na+/K+ ATPase pump
D. Decreased osmotic pressure in the extracellular fluid
Answer: C
Conceptual Explanation: Hypoxia leads to reduced ATP production, causing the Na+/K+
pump to fail. Sodium accumulates inside the cell, drawing water in by osmosis, resulting in
swelling.
3. Which epigenetic mechanism involves the addition of a methyl group to cytosine residues,
typically leading to gene silencing?
A. Histone acetylation
B. RNA interference
C. DNA methylation
D. Translation inhibition
Answer: C
Conceptual Explanation: DNA methylation involves adding a methyl group to the 5-
carbon of the cytosine pyrimidine ring, which generally renders genes inactive or silent.
4. A 25-year-old male presents with a systemic allergic reaction to a bee sting. Which type of
hypersensitivity reaction is he experiencing?
A. Type III
B. Type II
, C. Type I
D. Type IV
Answer: C
Conceptual Explanation: Type I hypersensitivity is IgE-mediated and involves an
immediate response to an allergen, leading to mast cell degranulation and systemic effects
like anaphylaxis.
5. Systemic Lupus Erythematosus (SLE) is characterized by the deposition of immune
complexes in various tissues. This represents which type of hypersensitivity?
A. Type I
B. Type II
C. Type IV
D. Type III
Answer: D
Conceptual Explanation: Type III hypersensitivity is immune complex-mediated, where
antigen-antibody complexes are deposited in tissues, causing inflammation and damage.
6. Which of the following is a key characteristic of benign tumors compared to malignant
tumors?
A. Rapid growth rate
B. Invasive growth into surrounding tissues
PATHOPHYSIOLOGY
COMPREHENSIVE EXAM QUESTIONS
WITH VERIFIED ANSWERS 2026/2027.
CHAMBERLAIN
1. A patient with chronic hypertension exhibits thickening of the left ventricular wall. Which
cellular adaptation is occurring?
A. Metaplasia
B. Atrophy
C. Hyperplasia
D. Hypertrophy
Answer: D
Conceptual Explanation: Hypertrophy is an increase in the size of cells in response to
mechanical load or stress, such as hypertension, leading to an increase in the size of the
organ.
2. In the state of hypoxic cell injury, what is the primary cause of cellular swelling?
A. Increased intracellular protein synthesis
B. Release of lysosomal enzymes
,C. Failure of the Na+/K+ ATPase pump
D. Decreased osmotic pressure in the extracellular fluid
Answer: C
Conceptual Explanation: Hypoxia leads to reduced ATP production, causing the Na+/K+
pump to fail. Sodium accumulates inside the cell, drawing water in by osmosis, resulting in
swelling.
3. Which epigenetic mechanism involves the addition of a methyl group to cytosine residues,
typically leading to gene silencing?
A. Histone acetylation
B. RNA interference
C. DNA methylation
D. Translation inhibition
Answer: C
Conceptual Explanation: DNA methylation involves adding a methyl group to the 5-
carbon of the cytosine pyrimidine ring, which generally renders genes inactive or silent.
4. A 25-year-old male presents with a systemic allergic reaction to a bee sting. Which type of
hypersensitivity reaction is he experiencing?
A. Type III
B. Type II
, C. Type I
D. Type IV
Answer: C
Conceptual Explanation: Type I hypersensitivity is IgE-mediated and involves an
immediate response to an allergen, leading to mast cell degranulation and systemic effects
like anaphylaxis.
5. Systemic Lupus Erythematosus (SLE) is characterized by the deposition of immune
complexes in various tissues. This represents which type of hypersensitivity?
A. Type I
B. Type II
C. Type IV
D. Type III
Answer: D
Conceptual Explanation: Type III hypersensitivity is immune complex-mediated, where
antigen-antibody complexes are deposited in tissues, causing inflammation and damage.
6. Which of the following is a key characteristic of benign tumors compared to malignant
tumors?
A. Rapid growth rate
B. Invasive growth into surrounding tissues
