NURS 231 Pathophysiology Final Exam Study Guide 2026/2027 | System-by-System Disease Process Review with Review Questions | Clinical Applications | A+ 2026/2027 | Page 1 | Passing Score: 80%
NURS 231 PATHOPHYSIOLOGY
NURS 231 Pathophysiology Final Exam
Study Guide 2026/2027
System-by-System Disease Process Review with Clinical Applications
2026/2027 Edition -- Official Exam 2026/2027
75 80% N/A
QUESTIONS PASSING SCORE RECERTIFICATION
TABLE OF CONTENTS
Section 1 Cellular Adaptation, Injury, and Inflammation Q1-15
Section 2 Cardiovascular and Respiratory Pathophysiology Q16-30
Section 3 Renal and Endocrine Pathophysiology Q31-45
Section 4 Neurologic and Musculoskeletal Pathophysiology Q46-60
Section 5 Gastrointestinal and Reproductive Pathophysiology Q61-75
Instructions: Select the single best answer for each question. This exam is designed for NURS 231 Pathophysiology
certification preparation. Passing score: 80% (60 questions correct).
NURS 231 Pathophysiology -- 2026/2027 | Passing Score: 80% | Page 1
, SECTION 1 | Cellular Adaptation, Injury, and Inflammation | Q1-Q15 | NURS 231 Pathophysiology 2026/2027
Q1 Question 1 of 75
Q1. A 58-year-old male with a 30-pack-year smoking history presents with chronic bronchitis and squamous
metaplasia of the bronchial epithelium. Biopsy reveals replacement of normal ciliated columnar epithelium by
stratified squamous epithelium. What cellular adaptation mechanism best describes this change?
A. Hyperplasia due to hormonal stimulation
B. Dysplasia representing premalignant transformation
C. Metaplasia as an adaptive response to chronic irritation
D. Hypertrophy resulting from increased functional demand
Correct Answer: C
Rationale:
Squamous metaplasia is the replacement of one differentiated cell type by another, in this case columnar to squamous
epithelium, as an adaptive response to chronic smoke irritation. Hyperplasia involves an increase in cell number, not cell
type change. Dysplasia indicates disordered growth, not a reversible adaptive change. Hypertrophy involves cell size
increase, not type substitution.
Q2 Question 2 of 75
Q2. A 42-year-old female undergoes a liver biopsy after presenting with fatigue and jaundice. Histology reveals
hepatocytes with clear, vacuolated cytoplasm that stains positive with Oil Red O. This finding is most consistent
with which type of cellular injury?
A. Hydropic degeneration from acute ischemia
B. Coagulative necrosis from vascular occlusion
C. Fatty change from impaired lipid metabolism
D. Amyloid deposition from chronic inflammation
Correct Answer: C
Rationale:
Oil Red O positivity and clear vacuolated cytoplasm indicate intracellular lipid accumulation (steatosis), a hallmark of fatty
change from impaired lipid metabolism. Hydropic degeneration shows cloudy swelling with water accumulation, not lipid.
Coagulative necrosis shows preserved cell outlines with eosinophilic cytoplasm. Amyloid deposits are extracellular, not
intracellular vacuoles.
NURS 231 Pathophysiology -- 2026/2027 | Passing Score: 80% | Page 2
,Q3 Question 3 of 75
Q3. A 35-year-old construction worker sustains a deep laceration on his forearm. Within 24 hours, the wound
shows erythema, warmth, and purulent drainage. Microscopic examination reveals neutrophil infiltration,
vascular congestion, and edema. Which mediator is primarily responsible for the initial vasodilation observed in
this response?
A. Interleukin-6 driving systemic acute-phase response
B. Leukotriene B4 promoting neutrophil chemotaxis
C. Histamine released from mast cells causing vascular smooth muscle relaxation
D. Bradykinin generated from the kinin cascade increasing capillary permeability
Correct Answer: C
Rationale:
Histamine, released from mast cell granules, is the primary mediator of initial vasodilation in acute inflammation by relaxing
vascular smooth muscle. Interleukin-6 drives systemic effects like fever but not local vasodilation. Leukotriene B4 is a potent
chemotactic agent for neutrophils. Bradykinin increases vascular permeability and causes pain, not vasodilation.
Q4 Question 4 of 75
Q4. A 67-year-old male with a history of myocardial infarction presents with progressive dyspnea.
Echocardiography shows a thickened left ventricular wall. Microscopic examination reveals enlarged cardiac
myocytes with increased mitochondrial density. This cellular change is best classified as which type of
adaptation?
A. Hyperplasia from increased cell number
B. Metaplasia from cell type conversion
C. Hypertrophy from increased cell size due to increased workload
D. Atrophy from decreased cellular metabolism
Correct Answer: C
Rationale:
Enlarged myocytes with increased mitochondrial density indicate hypertrophy, an increase in cell size in response to
increased workload from the failing heart. Hyperplasia involves increased cell number, which does not occur in permanent
cells like cardiac myocytes. Metaplasia is replacement of one cell type with another. Atrophy is a decrease in cell size, the
opposite of what is described.
NURS 231 Pathophysiology -- 2026/2027 | Passing Score: 80% | Page 3
, Q5 Question 5 of 75
Q5. A 72-year-old female with a history of recurrent urinary tract infections presents with flank pain and fever.
Urinalysis reveals numerous white blood cells and bacteria. Blood cultures grow Escherichia coli. The systemic
inflammatory response in this patient is primarily mediated by which cytokine cascade?
A. Interferon-alpha from viral-infected cells activating NK cells
B. Interleukin-4 from Th2 cells promoting antibody class switching
C. Interleukin-1 and tumor necrosis factor-alpha from macrophages initiating the acute-phase response
D. Transforming growth factor-beta from regulatory T cells suppressing immune activation
Correct Answer: C
Rationale:
IL-1 and TNF-alpha from activated macrophages are the primary cytokines driving the systemic acute-phase response,
fever, and leukocytosis seen in bacterial sepsis. Interferon-alpha is primarily antiviral, not antibacterial. IL-4 drives
Th2/humoral immunity, not acute inflammation. TGF-beta is immunosuppressive, which is counterproductive to the
described response.
Q6 Question 6 of 75
Q6. A 45-year-old male presents with a painless, slowly enlarging mass in the right lobe of his liver. Imaging
reveals a well-circumscribed lesion, and biopsy shows a proliferation of normal-appearing hepatocytes
arranged in cords without cellular atypia. What is the most accurate classification of this lesion?
A. Metaplasia representing reversible cell type change
B. Dysplasia representing disordered cellular maturation
C. Hyperplasia with autonomous neoplastic proliferation of benign hepatocytes
D. Hypertrophy from increased functional demand on hepatocytes
Correct Answer: C
Rationale:
A well-circumscribed proliferation of normal-appearing hepatocytes without atypia describes a benign neoplasm (hepatic
adenoma), which is autonomous hyperplasia. Metaplasia involves cell type replacement, not proliferation. Dysplasia shows
disordered growth with atypia, not normal-appearing cells. Hypertrophy is cell enlargement, not a mass-forming proliferation.
NURS 231 Pathophysiology -- 2026/2027 | Passing Score: 80% | Page 4
NURS 231 PATHOPHYSIOLOGY
NURS 231 Pathophysiology Final Exam
Study Guide 2026/2027
System-by-System Disease Process Review with Clinical Applications
2026/2027 Edition -- Official Exam 2026/2027
75 80% N/A
QUESTIONS PASSING SCORE RECERTIFICATION
TABLE OF CONTENTS
Section 1 Cellular Adaptation, Injury, and Inflammation Q1-15
Section 2 Cardiovascular and Respiratory Pathophysiology Q16-30
Section 3 Renal and Endocrine Pathophysiology Q31-45
Section 4 Neurologic and Musculoskeletal Pathophysiology Q46-60
Section 5 Gastrointestinal and Reproductive Pathophysiology Q61-75
Instructions: Select the single best answer for each question. This exam is designed for NURS 231 Pathophysiology
certification preparation. Passing score: 80% (60 questions correct).
NURS 231 Pathophysiology -- 2026/2027 | Passing Score: 80% | Page 1
, SECTION 1 | Cellular Adaptation, Injury, and Inflammation | Q1-Q15 | NURS 231 Pathophysiology 2026/2027
Q1 Question 1 of 75
Q1. A 58-year-old male with a 30-pack-year smoking history presents with chronic bronchitis and squamous
metaplasia of the bronchial epithelium. Biopsy reveals replacement of normal ciliated columnar epithelium by
stratified squamous epithelium. What cellular adaptation mechanism best describes this change?
A. Hyperplasia due to hormonal stimulation
B. Dysplasia representing premalignant transformation
C. Metaplasia as an adaptive response to chronic irritation
D. Hypertrophy resulting from increased functional demand
Correct Answer: C
Rationale:
Squamous metaplasia is the replacement of one differentiated cell type by another, in this case columnar to squamous
epithelium, as an adaptive response to chronic smoke irritation. Hyperplasia involves an increase in cell number, not cell
type change. Dysplasia indicates disordered growth, not a reversible adaptive change. Hypertrophy involves cell size
increase, not type substitution.
Q2 Question 2 of 75
Q2. A 42-year-old female undergoes a liver biopsy after presenting with fatigue and jaundice. Histology reveals
hepatocytes with clear, vacuolated cytoplasm that stains positive with Oil Red O. This finding is most consistent
with which type of cellular injury?
A. Hydropic degeneration from acute ischemia
B. Coagulative necrosis from vascular occlusion
C. Fatty change from impaired lipid metabolism
D. Amyloid deposition from chronic inflammation
Correct Answer: C
Rationale:
Oil Red O positivity and clear vacuolated cytoplasm indicate intracellular lipid accumulation (steatosis), a hallmark of fatty
change from impaired lipid metabolism. Hydropic degeneration shows cloudy swelling with water accumulation, not lipid.
Coagulative necrosis shows preserved cell outlines with eosinophilic cytoplasm. Amyloid deposits are extracellular, not
intracellular vacuoles.
NURS 231 Pathophysiology -- 2026/2027 | Passing Score: 80% | Page 2
,Q3 Question 3 of 75
Q3. A 35-year-old construction worker sustains a deep laceration on his forearm. Within 24 hours, the wound
shows erythema, warmth, and purulent drainage. Microscopic examination reveals neutrophil infiltration,
vascular congestion, and edema. Which mediator is primarily responsible for the initial vasodilation observed in
this response?
A. Interleukin-6 driving systemic acute-phase response
B. Leukotriene B4 promoting neutrophil chemotaxis
C. Histamine released from mast cells causing vascular smooth muscle relaxation
D. Bradykinin generated from the kinin cascade increasing capillary permeability
Correct Answer: C
Rationale:
Histamine, released from mast cell granules, is the primary mediator of initial vasodilation in acute inflammation by relaxing
vascular smooth muscle. Interleukin-6 drives systemic effects like fever but not local vasodilation. Leukotriene B4 is a potent
chemotactic agent for neutrophils. Bradykinin increases vascular permeability and causes pain, not vasodilation.
Q4 Question 4 of 75
Q4. A 67-year-old male with a history of myocardial infarction presents with progressive dyspnea.
Echocardiography shows a thickened left ventricular wall. Microscopic examination reveals enlarged cardiac
myocytes with increased mitochondrial density. This cellular change is best classified as which type of
adaptation?
A. Hyperplasia from increased cell number
B. Metaplasia from cell type conversion
C. Hypertrophy from increased cell size due to increased workload
D. Atrophy from decreased cellular metabolism
Correct Answer: C
Rationale:
Enlarged myocytes with increased mitochondrial density indicate hypertrophy, an increase in cell size in response to
increased workload from the failing heart. Hyperplasia involves increased cell number, which does not occur in permanent
cells like cardiac myocytes. Metaplasia is replacement of one cell type with another. Atrophy is a decrease in cell size, the
opposite of what is described.
NURS 231 Pathophysiology -- 2026/2027 | Passing Score: 80% | Page 3
, Q5 Question 5 of 75
Q5. A 72-year-old female with a history of recurrent urinary tract infections presents with flank pain and fever.
Urinalysis reveals numerous white blood cells and bacteria. Blood cultures grow Escherichia coli. The systemic
inflammatory response in this patient is primarily mediated by which cytokine cascade?
A. Interferon-alpha from viral-infected cells activating NK cells
B. Interleukin-4 from Th2 cells promoting antibody class switching
C. Interleukin-1 and tumor necrosis factor-alpha from macrophages initiating the acute-phase response
D. Transforming growth factor-beta from regulatory T cells suppressing immune activation
Correct Answer: C
Rationale:
IL-1 and TNF-alpha from activated macrophages are the primary cytokines driving the systemic acute-phase response,
fever, and leukocytosis seen in bacterial sepsis. Interferon-alpha is primarily antiviral, not antibacterial. IL-4 drives
Th2/humoral immunity, not acute inflammation. TGF-beta is immunosuppressive, which is counterproductive to the
described response.
Q6 Question 6 of 75
Q6. A 45-year-old male presents with a painless, slowly enlarging mass in the right lobe of his liver. Imaging
reveals a well-circumscribed lesion, and biopsy shows a proliferation of normal-appearing hepatocytes
arranged in cords without cellular atypia. What is the most accurate classification of this lesion?
A. Metaplasia representing reversible cell type change
B. Dysplasia representing disordered cellular maturation
C. Hyperplasia with autonomous neoplastic proliferation of benign hepatocytes
D. Hypertrophy from increased functional demand on hepatocytes
Correct Answer: C
Rationale:
A well-circumscribed proliferation of normal-appearing hepatocytes without atypia describes a benign neoplasm (hepatic
adenoma), which is autonomous hyperplasia. Metaplasia involves cell type replacement, not proliferation. Dysplasia shows
disordered growth with atypia, not normal-appearing cells. Hypertrophy is cell enlargement, not a mass-forming proliferation.
NURS 231 Pathophysiology -- 2026/2027 | Passing Score: 80% | Page 4
