NSG5003 Advanced Pathophysiology
Quizzes Weeks 1–10 2026/2027 | Knowledge
Check Questions & Verified Answers | South
University
NSG5003 ADVANCED PATHOPHYSIOLOGY QUIZZES
WEEKS 1–10 | 2026/2027 KNOWLEDGE CHECK QUESTIONS
═══════════════════════════════════════════════════════
════════════════
• This comprehensive quiz bank contains verified knowledge-check questions
spanning all major pathophysiology topics covered in weeks 1–10, designed to
reinforce foundational and advanced concepts through progressive difficulty and
clinical application scenarios.
• Study this material by completing questions sequentially, reviewing detailed
rationales for incorrect selections, and using identified weak areas to guide
targeted review of course materials and clinical case studies.
═══════════════════════════════════════════════════════
════════════════
QUESTIONS 1–50: CELLULAR ADAPTATION, INJURY, AND DEATH
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1. Which of the following cellular adaptations occurs in response to chronic
increased workload, such as in sustained hypertension?
A) Hyperplasia leading to organ shrinkage
B) Metaplasia of smooth muscle cells
C) Hypertrophy of myocardial cells
D) Apoptosis of vascular endothelium
E) Dysplasia of arterial walls
✓ CORRECT ANSWER: C) Hypertrophy of myocardial cells
,RATIONALE: In response to chronic increased demand (such as sustained
hypertension), cardiac myocytes undergo hypertrophy—an increase in individual
cell size without an increase in cell number. This adaptation allows the heart to
generate greater contractile force to meet increased workload demands.
Hyperplasia refers to an increase in cell number, not size, and typically occurs with
different stimuli. Metaplasia involves replacement of one differentiated cell type
with another and is not the primary adaptation to increased workload. Apoptosis
and dysplasia are pathological processes, not adaptive responses to chronic
hemodynamic stress.
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────────────────
2. A 58-year-old male with chronic irritation of his respiratory epithelium due
to smoking develops replacement of the normal ciliated pseudostratified
columnar epithelium with stratified squamous epithelium. What is this
process called?
A) Anaplasia
B) Hyperplasia
C) Metaplasia
D) Dysplasia
E) Necrosis
✓ CORRECT ANSWER: C) Metaplasia
RATIONALE: Metaplasia is the reversible replacement of one differentiated cell type
with another mature cell type. In this case, the ciliated pseudostratified columnar
epithelium of the respiratory tract is replaced by stratified squamous epithelium as
an adaptation to chronic irritation from cigarette smoke. This replacement
represents a change from one cell type to another, not a progression toward
malignancy (which would be dysplasia) or loss of differentiation (anaplasia).
Hyperplasia would refer to increased cell number, not type replacement. While this
adaptation is protective in the short term (stratified squamous epithelium is more
resistant to irritants), it is reversible if the irritant is removed.
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────────────────
3. Which mechanism of cellular injury is primarily responsible for damage in
ischemic stroke?
A) Direct oxidative damage by free radicals
B) Depletion of ATP and failure of ion pumps
C) Excessive lysosomal enzyme release
D) Complement-mediated membrane attack
E) Protein misfolding and aggregation
✓ CORRECT ANSWER: B) Depletion of ATP and failure of ion pumps
RATIONALE: Ischemic injury occurs when blood flow to tissue is compromised,
resulting in oxygen deprivation and consequent inability to produce adequate ATP
through oxidative phosphorylation. Without sufficient ATP, the Na+/K+-ATPase and
Ca2+-ATPase pumps fail, leading to accumulation of intracellular Na+ and Ca2+.
This causes cell swelling (cytotoxic edema) and activation of calcium-dependent
enzymes (proteases, phospholipases, endonucleases), ultimately leading to cell
death. While oxidative damage occurs later during reperfusion, the initial and
primary mechanism in ischemia is ATP depletion. Lysosomal enzyme release and
complement activation are secondary responses, and protein misfolding is
associated with other pathologies.
───────────────────────────────────────────────────────
────────────────
4. A 45-year-old patient with chronic alcohol abuse develops fatty infiltration
of the liver without significant inflammation or fibrosis. Which stage of
hepatic injury does this represent?
A) Acute hepatitis
B) Cirrhosis
C) Hepatic steatosis
D) Cholangitis
, E) Hepatic necrosis
✓ CORRECT ANSWER: C) Hepatic steatosis
RATIONALE: Hepatic steatosis represents the reversible accumulation of
triglycerides within hepatocytes, commonly seen in alcohol abuse, obesity, and
metabolic syndrome. At this early stage, the liver is fatty but has not yet developed
inflammation (which would indicate hepatitis) or fibrosis (which would indicate
cirrhosis). Hepatic steatosis can progress to more severe liver disease if the
causative factor (alcohol consumption) is not eliminated, but it is initially reversible.
The presence of fatty infiltration without inflammation specifically defines simple
steatosis rather than steatohepatitis or cirrhosis.
───────────────────────────────────────────────────────
────────────────
5. Which of the following best explains why calcium accumulation in cells
leads to cellular injury?
A) Calcium directly inhibits ATP production
B) Calcium activates calcium-dependent proteases and phospholipases
C) Calcium increases cell membrane permeability to electrolytes
D) Calcium competitively inhibits magnesium transport
E) Calcium binds to mitochondrial DNA and causes mutations
✓ CORRECT ANSWER: B) Calcium activates calcium-dependent proteases and
phospholipases
RATIONALE: Intracellular calcium accumulation activates multiple calcium-
dependent enzymes, including calpains (proteases), phospholipases, and
calcineurin, which collectively cause cellular destruction. Calpains digest
cytoskeletal proteins and nuclear proteins, phospholipases degrade phospholipids
in cell membranes, and calcineurin causes inappropriate gene transcription. This
cascade of enzyme activation leads to cell death through multiple mechanisms.
While calcium may indirectly affect ATP production through mitochondrial
dysfunction, the primary mechanism of calcium-mediated injury is enzyme
Quizzes Weeks 1–10 2026/2027 | Knowledge
Check Questions & Verified Answers | South
University
NSG5003 ADVANCED PATHOPHYSIOLOGY QUIZZES
WEEKS 1–10 | 2026/2027 KNOWLEDGE CHECK QUESTIONS
═══════════════════════════════════════════════════════
════════════════
• This comprehensive quiz bank contains verified knowledge-check questions
spanning all major pathophysiology topics covered in weeks 1–10, designed to
reinforce foundational and advanced concepts through progressive difficulty and
clinical application scenarios.
• Study this material by completing questions sequentially, reviewing detailed
rationales for incorrect selections, and using identified weak areas to guide
targeted review of course materials and clinical case studies.
═══════════════════════════════════════════════════════
════════════════
QUESTIONS 1–50: CELLULAR ADAPTATION, INJURY, AND DEATH
───────────────────────────────────────────────────────
────────────────
1. Which of the following cellular adaptations occurs in response to chronic
increased workload, such as in sustained hypertension?
A) Hyperplasia leading to organ shrinkage
B) Metaplasia of smooth muscle cells
C) Hypertrophy of myocardial cells
D) Apoptosis of vascular endothelium
E) Dysplasia of arterial walls
✓ CORRECT ANSWER: C) Hypertrophy of myocardial cells
,RATIONALE: In response to chronic increased demand (such as sustained
hypertension), cardiac myocytes undergo hypertrophy—an increase in individual
cell size without an increase in cell number. This adaptation allows the heart to
generate greater contractile force to meet increased workload demands.
Hyperplasia refers to an increase in cell number, not size, and typically occurs with
different stimuli. Metaplasia involves replacement of one differentiated cell type
with another and is not the primary adaptation to increased workload. Apoptosis
and dysplasia are pathological processes, not adaptive responses to chronic
hemodynamic stress.
───────────────────────────────────────────────────────
────────────────
2. A 58-year-old male with chronic irritation of his respiratory epithelium due
to smoking develops replacement of the normal ciliated pseudostratified
columnar epithelium with stratified squamous epithelium. What is this
process called?
A) Anaplasia
B) Hyperplasia
C) Metaplasia
D) Dysplasia
E) Necrosis
✓ CORRECT ANSWER: C) Metaplasia
RATIONALE: Metaplasia is the reversible replacement of one differentiated cell type
with another mature cell type. In this case, the ciliated pseudostratified columnar
epithelium of the respiratory tract is replaced by stratified squamous epithelium as
an adaptation to chronic irritation from cigarette smoke. This replacement
represents a change from one cell type to another, not a progression toward
malignancy (which would be dysplasia) or loss of differentiation (anaplasia).
Hyperplasia would refer to increased cell number, not type replacement. While this
adaptation is protective in the short term (stratified squamous epithelium is more
resistant to irritants), it is reversible if the irritant is removed.
,───────────────────────────────────────────────────────
────────────────
3. Which mechanism of cellular injury is primarily responsible for damage in
ischemic stroke?
A) Direct oxidative damage by free radicals
B) Depletion of ATP and failure of ion pumps
C) Excessive lysosomal enzyme release
D) Complement-mediated membrane attack
E) Protein misfolding and aggregation
✓ CORRECT ANSWER: B) Depletion of ATP and failure of ion pumps
RATIONALE: Ischemic injury occurs when blood flow to tissue is compromised,
resulting in oxygen deprivation and consequent inability to produce adequate ATP
through oxidative phosphorylation. Without sufficient ATP, the Na+/K+-ATPase and
Ca2+-ATPase pumps fail, leading to accumulation of intracellular Na+ and Ca2+.
This causes cell swelling (cytotoxic edema) and activation of calcium-dependent
enzymes (proteases, phospholipases, endonucleases), ultimately leading to cell
death. While oxidative damage occurs later during reperfusion, the initial and
primary mechanism in ischemia is ATP depletion. Lysosomal enzyme release and
complement activation are secondary responses, and protein misfolding is
associated with other pathologies.
───────────────────────────────────────────────────────
────────────────
4. A 45-year-old patient with chronic alcohol abuse develops fatty infiltration
of the liver without significant inflammation or fibrosis. Which stage of
hepatic injury does this represent?
A) Acute hepatitis
B) Cirrhosis
C) Hepatic steatosis
D) Cholangitis
, E) Hepatic necrosis
✓ CORRECT ANSWER: C) Hepatic steatosis
RATIONALE: Hepatic steatosis represents the reversible accumulation of
triglycerides within hepatocytes, commonly seen in alcohol abuse, obesity, and
metabolic syndrome. At this early stage, the liver is fatty but has not yet developed
inflammation (which would indicate hepatitis) or fibrosis (which would indicate
cirrhosis). Hepatic steatosis can progress to more severe liver disease if the
causative factor (alcohol consumption) is not eliminated, but it is initially reversible.
The presence of fatty infiltration without inflammation specifically defines simple
steatosis rather than steatohepatitis or cirrhosis.
───────────────────────────────────────────────────────
────────────────
5. Which of the following best explains why calcium accumulation in cells
leads to cellular injury?
A) Calcium directly inhibits ATP production
B) Calcium activates calcium-dependent proteases and phospholipases
C) Calcium increases cell membrane permeability to electrolytes
D) Calcium competitively inhibits magnesium transport
E) Calcium binds to mitochondrial DNA and causes mutations
✓ CORRECT ANSWER: B) Calcium activates calcium-dependent proteases and
phospholipases
RATIONALE: Intracellular calcium accumulation activates multiple calcium-
dependent enzymes, including calpains (proteases), phospholipases, and
calcineurin, which collectively cause cellular destruction. Calpains digest
cytoskeletal proteins and nuclear proteins, phospholipases degrade phospholipids
in cell membranes, and calcineurin causes inappropriate gene transcription. This
cascade of enzyme activation leads to cell death through multiple mechanisms.
While calcium may indirectly affect ATP production through mitochondrial
dysfunction, the primary mechanism of calcium-mediated injury is enzyme
