WGU D236 PATHOPHYSIOLOGY FINAL EXAM LATEST
2026/2027 | Grade A Prep | Complete Q&A | Verified Answers
| Pass Guaranteed - A+ Graded
SECTION 1: CELLULAR ADAPTATION, INJURY, INFLAMMATION & REPAIR (Q1-20)
Q1. A 65-year-old patient with long-standing hypertension is found to have left
ventricular hypertrophy on echocardiogram. Which cellular adaptation has occurred?
A. Atrophy
B. Hyperplasia
C. Hypertrophy [CORRECT]
D. Metaplasia
Rationale: Hypertrophy is an increase in individual cell size resulting in enlargement of
the organ; cardiac muscle cells enlarge in response to chronic pressure overload.
Atrophy involves decreased cell size, hyperplasia involves increased cell number, and
metaplasia involves replacement of one cell type by another.
Correct Answer: C
Q2. A patient with chronic gastroesophageal reflux disease develops Barrett's
esophagus. Which cellular adaptation is demonstrated?
A. Dysplasia
B. Metaplasia [CORRECT]
C. Hyperplasia
D. Anaplasia
,Rationale: Barrett's esophagus involves replacement of stratified squamous epithelium
with intestinal-type columnar epithelium, which is metaplasia. Dysplasia refers to
disordered growth, hyperplasia is increased cell proliferation, and anaplasia is loss of
differentiation seen in malignancy.
Correct Answer: B
Q3. Which cellular change is characterized by a decrease in cell size and functional
ability due to decreased workload or disuse?
A. Hypertrophy
B. Hyperplasia
C. Atrophy [CORRECT]
D. Metaplasia
Rationale: Atrophy is the reduction in cell size and functional capacity secondary to
decreased demand, disuse, or inadequate nutrition. Hypertrophy is enlargement,
hyperplasia is increased cell number, and metaplasia is reversible cell type substitution.
Correct Answer: C
Q4. A patient suffers an acute myocardial infarction. The affected myocardial cells
demonstrate cell swelling, denatured enzymes, and plasma membrane disruption.
Which pathological process has occurred?
A. Apoptosis
B. Autophagy
C. Necrosis [CORRECT]
D. Metaplasia
Rationale: Necrosis is unregulated cell death following ischemic injury characterized by
enzyme denaturation, cell swelling, and membrane rupture triggering inflammation.
,Apoptosis is programmed cell death without inflammation, autophagy is cellular
component recycling, and metaplasia is an adaptive change.
Correct Answer: C
Q5. Coagulative necrosis is most characteristically associated with which condition?
A. Cerebral infarction
B. Tuberculosis
C. Myocardial infarction [CORRECT]
D. Acute pancreatitis
Rationale: Coagulative necrosis preserves tissue architecture for several days and is
characteristic of ischemia in solid organs such as the heart. Cerebral infarction causes
liquefactive necrosis, tuberculosis causes caseous necrosis, and pancreatitis causes
fat necrosis.
Correct Answer: C
Q6. A patient with pulmonary tuberculosis has necrotic granulomatous tissue that
appears soft, white, and cheese-like on gross examination. Which type of necrosis is
present?
A. Liquefactive necrosis
B. Coagulative necrosis
C. Caseous necrosis [CORRECT]
D. Fat necrosis
Rationale: Caseous necrosis is uniquely associated with tuberculosis and appears as
amorphous, cheese-like debris without preserved tissue architecture. Liquefactive
necrosis occurs in brain abscesses, coagulative in myocardial infarction, and fat
necrosis in pancreatic enzyme leakage.
, Correct Answer: C
Q7. A patient who suffered an ischemic stroke shows enzymatic dissolution of brain
tissue on histopathology. Which type of necrosis has occurred?
A. Coagulative necrosis
B. Caseous necrosis
C. Liquefactive necrosis [CORRECT]
D. Gangrenous necrosis
Rationale: Ischemic brain tissue undergoes liquefactive necrosis due to robust
lysosomal enzymatic digestion and lack of structural connective tissue. Coagulative
necrosis preserves architecture in solid organs, caseous necrosis is TB-specific, and
gangrenous necrosis refers to ischemic tissue of an extremity.
Correct Answer: C
Q8. Free radical injury to cellular membranes is primarily caused by which mechanism?
A. ATP depletion
B. Calcium influx into mitochondria
C. Unpaired electrons causing oxidative damage to lipids and proteins [CORRECT]
D. Lysosomal enzyme release into cytoplasm
Rationale: Free radicals contain unpaired electrons that attack polyunsaturated fatty
acids and proteins through oxidative chain reactions. ATP depletion and calcium influx
occur in ischemic cell injury, while lysosomal enzyme release is characteristic of
necrosis.
Correct Answer: C
2026/2027 | Grade A Prep | Complete Q&A | Verified Answers
| Pass Guaranteed - A+ Graded
SECTION 1: CELLULAR ADAPTATION, INJURY, INFLAMMATION & REPAIR (Q1-20)
Q1. A 65-year-old patient with long-standing hypertension is found to have left
ventricular hypertrophy on echocardiogram. Which cellular adaptation has occurred?
A. Atrophy
B. Hyperplasia
C. Hypertrophy [CORRECT]
D. Metaplasia
Rationale: Hypertrophy is an increase in individual cell size resulting in enlargement of
the organ; cardiac muscle cells enlarge in response to chronic pressure overload.
Atrophy involves decreased cell size, hyperplasia involves increased cell number, and
metaplasia involves replacement of one cell type by another.
Correct Answer: C
Q2. A patient with chronic gastroesophageal reflux disease develops Barrett's
esophagus. Which cellular adaptation is demonstrated?
A. Dysplasia
B. Metaplasia [CORRECT]
C. Hyperplasia
D. Anaplasia
,Rationale: Barrett's esophagus involves replacement of stratified squamous epithelium
with intestinal-type columnar epithelium, which is metaplasia. Dysplasia refers to
disordered growth, hyperplasia is increased cell proliferation, and anaplasia is loss of
differentiation seen in malignancy.
Correct Answer: B
Q3. Which cellular change is characterized by a decrease in cell size and functional
ability due to decreased workload or disuse?
A. Hypertrophy
B. Hyperplasia
C. Atrophy [CORRECT]
D. Metaplasia
Rationale: Atrophy is the reduction in cell size and functional capacity secondary to
decreased demand, disuse, or inadequate nutrition. Hypertrophy is enlargement,
hyperplasia is increased cell number, and metaplasia is reversible cell type substitution.
Correct Answer: C
Q4. A patient suffers an acute myocardial infarction. The affected myocardial cells
demonstrate cell swelling, denatured enzymes, and plasma membrane disruption.
Which pathological process has occurred?
A. Apoptosis
B. Autophagy
C. Necrosis [CORRECT]
D. Metaplasia
Rationale: Necrosis is unregulated cell death following ischemic injury characterized by
enzyme denaturation, cell swelling, and membrane rupture triggering inflammation.
,Apoptosis is programmed cell death without inflammation, autophagy is cellular
component recycling, and metaplasia is an adaptive change.
Correct Answer: C
Q5. Coagulative necrosis is most characteristically associated with which condition?
A. Cerebral infarction
B. Tuberculosis
C. Myocardial infarction [CORRECT]
D. Acute pancreatitis
Rationale: Coagulative necrosis preserves tissue architecture for several days and is
characteristic of ischemia in solid organs such as the heart. Cerebral infarction causes
liquefactive necrosis, tuberculosis causes caseous necrosis, and pancreatitis causes
fat necrosis.
Correct Answer: C
Q6. A patient with pulmonary tuberculosis has necrotic granulomatous tissue that
appears soft, white, and cheese-like on gross examination. Which type of necrosis is
present?
A. Liquefactive necrosis
B. Coagulative necrosis
C. Caseous necrosis [CORRECT]
D. Fat necrosis
Rationale: Caseous necrosis is uniquely associated with tuberculosis and appears as
amorphous, cheese-like debris without preserved tissue architecture. Liquefactive
necrosis occurs in brain abscesses, coagulative in myocardial infarction, and fat
necrosis in pancreatic enzyme leakage.
, Correct Answer: C
Q7. A patient who suffered an ischemic stroke shows enzymatic dissolution of brain
tissue on histopathology. Which type of necrosis has occurred?
A. Coagulative necrosis
B. Caseous necrosis
C. Liquefactive necrosis [CORRECT]
D. Gangrenous necrosis
Rationale: Ischemic brain tissue undergoes liquefactive necrosis due to robust
lysosomal enzymatic digestion and lack of structural connective tissue. Coagulative
necrosis preserves architecture in solid organs, caseous necrosis is TB-specific, and
gangrenous necrosis refers to ischemic tissue of an extremity.
Correct Answer: C
Q8. Free radical injury to cellular membranes is primarily caused by which mechanism?
A. ATP depletion
B. Calcium influx into mitochondria
C. Unpaired electrons causing oxidative damage to lipids and proteins [CORRECT]
D. Lysosomal enzyme release into cytoplasm
Rationale: Free radicals contain unpaired electrons that attack polyunsaturated fatty
acids and proteins through oxidative chain reactions. ATP depletion and calcium influx
occur in ischemic cell injury, while lysosomal enzyme release is characteristic of
necrosis.
Correct Answer: C
