NURS 6501 — Advanced Pathophysiology Practice Exam 2026–2027
NURS 6501 — Advanced Pathophysiology Practice Exam
2026–2027
Question 1: A patient with long-standing hypertension develops increased left ventricular wall
thickness. Which cellular adaptation best explains this finding?
A. Hyperplasia
B. Metaplasia
C. Atrophy
D. Hypertrophy
Correct Answer: D. Hypertrophy
Detailed Rationale: Chronic pressure overload increases the workload of cardiac myocytes. Because
adult cardiac myocytes have limited proliferative capacity, they primarily respond by increasing in size,
producing myocardial hypertrophy.
Why the other options are incorrect:
A. Hyperplasia: Involves an increase in cell number rather than cell size.
B. Metaplasia: Involves replacement of one mature cell type with another.
C. Atrophy: Represents a reduction in cellular size or tissue mass.
────────────────────────────────────────────────────────────────────────
Question 2: A patient experiences prolonged tissue ischemia. Which cellular event occurs early
as ATP production declines?
A. Increased sodium-potassium pump activity
B. Intracellular sodium and water accumulation
C. Increased oxidative phosphorylation
D. Increased intracellular protein synthesis
Correct Answer: B. Intracellular sodium and water accumulation
Detailed Rationale: ATP depletion impairs the sodium-potassium ATPase. Sodium accumulates inside
cells, followed by water movement into the intracellular compartment, producing cellular swelling. This
is an early potentially reversible manifestation of hypoxic injury.
Advanced Pathophysiology | Practice Exam 2026–2027 • 1
, NURS 6501 — Advanced Pathophysiology Practice Exam 2026–2027
Why the other options are incorrect:
A. ATP-dependent sodium-potassium pump activity decreases.
C. Oxidative phosphorylation decreases when oxygen availability is inadequate.
D. Cellular protein synthesis generally decreases during significant energy depletion.
────────────────────────────────────────────────────────────────────────
Question 3: A patient develops tissue necrosis after severe ischemia. Which finding most
strongly indicates irreversible cellular injury?
A. Mild cellular swelling
B. Fatty change
C. Severe membrane damage with inability to restore mitochondrial function
D. Temporary reduction in ATP production
Correct Answer: C. Severe membrane damage with inability to restore mitochondrial function
Detailed Rationale: Irreversible cellular injury is characterized by severe mitochondrial dysfunction and
loss of membrane integrity. Once these abnormalities become profound, restoration of oxygen alone
cannot return the cell to normal function.
Why the other options are incorrect:
A. Mild swelling may be reversible.
B. Fatty change can be reversible depending on its cause and severity.
D. Temporary ATP depletion may resolve after restoration of perfusion.
────────────────────────────────────────────────────────────────────────
Question 4: A patient develops tissue injury shortly after blood flow is restored to an ischemic
organ. Which mechanism contributes to ischemia-reperfusion injury?
A. Reduced reactive oxygen species production
B. Reactive oxygen species generation and inflammatory activation
C. Complete inhibition of leukocyte activity
D. Decreased intracellular calcium
Correct Answer: B. Reactive oxygen species generation and inflammatory activation
Detailed Rationale: Reperfusion can paradoxically worsen cellular injury through reactive oxygen
species generation, calcium overload, mitochondrial dysfunction, and inflammatory activation.
Advanced Pathophysiology | Practice Exam 2026–2027 • 2
, NURS 6501 — Advanced Pathophysiology Practice Exam 2026–2027
Why the other options are incorrect:
A. Reactive oxygen species may increase during reperfusion.
C. Leukocytes may become activated and contribute to injury.
D. Intracellular calcium can increase during ischemic and reperfusion injury.
────────────────────────────────────────────────────────────────────────
Question 5: Which form of cell death is characterized by controlled cellular fragmentation and
generally minimal surrounding inflammation?
A. Necrosis
B. Apoptosis
C. Gangrene
D. Liquefaction
Correct Answer: B. Apoptosis
Detailed Rationale: Apoptosis is a regulated form of cell death involving cellular shrinkage, chromatin
condensation, fragmentation, and removal of apoptotic bodies without the extensive inflammatory
response commonly associated with necrosis.
Why the other options are incorrect:
A. Necrosis commonly produces inflammation.
C. Gangrene represents extensive tissue necrosis.
D. Liquefactive necrosis is a pattern of tissue destruction rather than programmed cell death.
────────────────────────────────────────────────────────────────────────
Question 6: A patient has chronic irritation of the bronchial epithelium. Normal ciliated
columnar cells are replaced by stratified squamous cells. Which adaptation has occurred?
A. Hypertrophy
B. Hyperplasia
C. Metaplasia
D. Atrophy
Correct Answer: C. Metaplasia
Detailed Rationale: Metaplasia is a potentially reversible adaptive response in which one differentiated
cell type is replaced by another better able to tolerate chronic environmental stress.
Advanced Pathophysiology | Practice Exam 2026–2027 • 3
, NURS 6501 — Advanced Pathophysiology Practice Exam 2026–2027
Why the other options are incorrect:
A. Hypertrophy involves increased cell size.
B. Hyperplasia involves increased cell number.
D. Atrophy involves decreased cellular size or tissue mass.
────────────────────────────────────────────────────────────────────────
Question 7: A patient has prolonged nutritional deprivation and develops skeletal muscle
wasting. Which cellular adaptation is occurring?
A. Hypertrophy
B. Hyperplasia
C. Metaplasia
D. Atrophy
Correct Answer: D. Atrophy
Detailed Rationale: Atrophy involves reduction in cell size and functional tissue mass. Nutritional
deprivation can increase protein breakdown and decrease protein synthesis, contributing to muscle
wasting.
Why the other options are incorrect:
A. Hypertrophy enlarges cells.
B. Hyperplasia increases cell number.
C. Metaplasia changes cell type.
────────────────────────────────────────────────────────────────────────
Question 8: A patient has severe hypoxemia resulting from respiratory failure. Which cellular
metabolic change occurs when oxygen delivery becomes inadequate?
A. Increased aerobic ATP production
B. Increased anaerobic glycolysis
C. Increased oxidative phosphorylation
D. Increased mitochondrial efficiency
Correct Answer: B. Increased anaerobic glycolysis
Detailed Rationale: When oxygen is insufficient for normal oxidative phosphorylation, cells increase
anaerobic glycolysis to generate limited ATP. Pyruvate is converted to lactate, which can contribute to
lactic acidosis.
Advanced Pathophysiology | Practice Exam 2026–2027 • 4
NURS 6501 — Advanced Pathophysiology Practice Exam
2026–2027
Question 1: A patient with long-standing hypertension develops increased left ventricular wall
thickness. Which cellular adaptation best explains this finding?
A. Hyperplasia
B. Metaplasia
C. Atrophy
D. Hypertrophy
Correct Answer: D. Hypertrophy
Detailed Rationale: Chronic pressure overload increases the workload of cardiac myocytes. Because
adult cardiac myocytes have limited proliferative capacity, they primarily respond by increasing in size,
producing myocardial hypertrophy.
Why the other options are incorrect:
A. Hyperplasia: Involves an increase in cell number rather than cell size.
B. Metaplasia: Involves replacement of one mature cell type with another.
C. Atrophy: Represents a reduction in cellular size or tissue mass.
────────────────────────────────────────────────────────────────────────
Question 2: A patient experiences prolonged tissue ischemia. Which cellular event occurs early
as ATP production declines?
A. Increased sodium-potassium pump activity
B. Intracellular sodium and water accumulation
C. Increased oxidative phosphorylation
D. Increased intracellular protein synthesis
Correct Answer: B. Intracellular sodium and water accumulation
Detailed Rationale: ATP depletion impairs the sodium-potassium ATPase. Sodium accumulates inside
cells, followed by water movement into the intracellular compartment, producing cellular swelling. This
is an early potentially reversible manifestation of hypoxic injury.
Advanced Pathophysiology | Practice Exam 2026–2027 • 1
, NURS 6501 — Advanced Pathophysiology Practice Exam 2026–2027
Why the other options are incorrect:
A. ATP-dependent sodium-potassium pump activity decreases.
C. Oxidative phosphorylation decreases when oxygen availability is inadequate.
D. Cellular protein synthesis generally decreases during significant energy depletion.
────────────────────────────────────────────────────────────────────────
Question 3: A patient develops tissue necrosis after severe ischemia. Which finding most
strongly indicates irreversible cellular injury?
A. Mild cellular swelling
B. Fatty change
C. Severe membrane damage with inability to restore mitochondrial function
D. Temporary reduction in ATP production
Correct Answer: C. Severe membrane damage with inability to restore mitochondrial function
Detailed Rationale: Irreversible cellular injury is characterized by severe mitochondrial dysfunction and
loss of membrane integrity. Once these abnormalities become profound, restoration of oxygen alone
cannot return the cell to normal function.
Why the other options are incorrect:
A. Mild swelling may be reversible.
B. Fatty change can be reversible depending on its cause and severity.
D. Temporary ATP depletion may resolve after restoration of perfusion.
────────────────────────────────────────────────────────────────────────
Question 4: A patient develops tissue injury shortly after blood flow is restored to an ischemic
organ. Which mechanism contributes to ischemia-reperfusion injury?
A. Reduced reactive oxygen species production
B. Reactive oxygen species generation and inflammatory activation
C. Complete inhibition of leukocyte activity
D. Decreased intracellular calcium
Correct Answer: B. Reactive oxygen species generation and inflammatory activation
Detailed Rationale: Reperfusion can paradoxically worsen cellular injury through reactive oxygen
species generation, calcium overload, mitochondrial dysfunction, and inflammatory activation.
Advanced Pathophysiology | Practice Exam 2026–2027 • 2
, NURS 6501 — Advanced Pathophysiology Practice Exam 2026–2027
Why the other options are incorrect:
A. Reactive oxygen species may increase during reperfusion.
C. Leukocytes may become activated and contribute to injury.
D. Intracellular calcium can increase during ischemic and reperfusion injury.
────────────────────────────────────────────────────────────────────────
Question 5: Which form of cell death is characterized by controlled cellular fragmentation and
generally minimal surrounding inflammation?
A. Necrosis
B. Apoptosis
C. Gangrene
D. Liquefaction
Correct Answer: B. Apoptosis
Detailed Rationale: Apoptosis is a regulated form of cell death involving cellular shrinkage, chromatin
condensation, fragmentation, and removal of apoptotic bodies without the extensive inflammatory
response commonly associated with necrosis.
Why the other options are incorrect:
A. Necrosis commonly produces inflammation.
C. Gangrene represents extensive tissue necrosis.
D. Liquefactive necrosis is a pattern of tissue destruction rather than programmed cell death.
────────────────────────────────────────────────────────────────────────
Question 6: A patient has chronic irritation of the bronchial epithelium. Normal ciliated
columnar cells are replaced by stratified squamous cells. Which adaptation has occurred?
A. Hypertrophy
B. Hyperplasia
C. Metaplasia
D. Atrophy
Correct Answer: C. Metaplasia
Detailed Rationale: Metaplasia is a potentially reversible adaptive response in which one differentiated
cell type is replaced by another better able to tolerate chronic environmental stress.
Advanced Pathophysiology | Practice Exam 2026–2027 • 3
, NURS 6501 — Advanced Pathophysiology Practice Exam 2026–2027
Why the other options are incorrect:
A. Hypertrophy involves increased cell size.
B. Hyperplasia involves increased cell number.
D. Atrophy involves decreased cellular size or tissue mass.
────────────────────────────────────────────────────────────────────────
Question 7: A patient has prolonged nutritional deprivation and develops skeletal muscle
wasting. Which cellular adaptation is occurring?
A. Hypertrophy
B. Hyperplasia
C. Metaplasia
D. Atrophy
Correct Answer: D. Atrophy
Detailed Rationale: Atrophy involves reduction in cell size and functional tissue mass. Nutritional
deprivation can increase protein breakdown and decrease protein synthesis, contributing to muscle
wasting.
Why the other options are incorrect:
A. Hypertrophy enlarges cells.
B. Hyperplasia increases cell number.
C. Metaplasia changes cell type.
────────────────────────────────────────────────────────────────────────
Question 8: A patient has severe hypoxemia resulting from respiratory failure. Which cellular
metabolic change occurs when oxygen delivery becomes inadequate?
A. Increased aerobic ATP production
B. Increased anaerobic glycolysis
C. Increased oxidative phosphorylation
D. Increased mitochondrial efficiency
Correct Answer: B. Increased anaerobic glycolysis
Detailed Rationale: When oxygen is insufficient for normal oxidative phosphorylation, cells increase
anaerobic glycolysis to generate limited ATP. Pyruvate is converted to lactate, which can contribute to
lactic acidosis.
Advanced Pathophysiology | Practice Exam 2026–2027 • 4
