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WGU D236 PATHOPHYSIOLOGY EXAM 2026/2027 | Latest
Update | Verified Answers Grade A | Pass Guaranteed - A+
Graded
Section 1: Cellular Adaptation, Injury & Neoplasia (Q1-14)
Q1. A 78-year-old male is bedridden after a hip fracture. Muscle biopsy of his
quadriceps reveals smaller muscle fibers with increased lipofuscin pigment. Which
cellular adaptation is present?
A. Hypertrophy
B. Hyperplasia
C. Atrophy [CORRECT]
D. Metaplasia
Rationale: Atrophy is decreased cell size from disuse, denervation, or decreased
nutrition; bedridden patients develop disuse atrophy of skeletal muscle. Hypertrophy
involves increased cell size, hyperplasia involves increased cell number, and
metaplasia is a change from one cell type to another.
Correct Answer: C
Q2. A 45-year-old male with uncontrolled hypertension has left ventricular
enlargement. The cardiologist explains that individual cardiac myocytes have
increased in size from chronic pressure overload. Which process is described?
A. Physiologic hyperplasia
B. Pathologic hypertrophy [CORRECT]
C. Metaplasia
D. Dysplasia
Rationale: Hypertrophy is increased cell size in response to increased workload;
pathologic hypertrophy occurs in hypertension due to pressure overload. Hyperplasia
increases cell number, metaplasia changes cell type, and dysplasia is disordered pre-
neoplastic growth.
Correct Answer: B
,2
Q3. A 55-year-old female with GERD undergoes endoscopy. Biopsy reveals columnar
epithelium with goblet cells replacing normal squamous epithelium in the distal
esophagus. Which adaptation has occurred?
A. Dysplasia
B. Hyperplasia
C. Metaplasia [CORRECT]
D. Neoplasia
Rationale: Metaplasia is a reversible change of one differentiated cell type to another;
chronic acid exposure causes squamous-to-columnar metaplasia (Barrett esophagus).
Dysplasia involves disordered growth, hyperplasia increases cell number, and
neoplasia indicates autonomous tumor growth.
Correct Answer: C
Q4. A 32-year-old female has a Pap smear showing cervical cells with nuclear
enlargement, hyperchromasia, and loss of normal maturation. These cells show
abnormal size and shape but do not invade the basement membrane. Which process
is present?
A. Metaplasia
B. Hyperplasia
C. Dysplasia [CORRECT]
D. Carcinoma in situ
Rationale: Dysplasia is disordered epithelial growth with abnormal cell size, shape,
and organization that is pre-neoplastic and reversible if the stimulus is removed.
Metaplasia lacks cytologic atypia, hyperplasia is increased cell number without atypia,
and carcinoma in situ involves full-thickness dysplasia.
Correct Answer: C
Q5. A 68-year-old male suffers an MI. Autopsy of affected myocardium shows
preserved tissue architecture, loss of nuclei, and intensely eosinophilic cytoplasm.
Which necrosis type is present?
A. Liquefactive necrosis
B. Coagulative necrosis [CORRECT]
C. Caseous necrosis
D. Fat necrosis
, 3
Rationale: Coagulative necrosis is characteristic of ischemic injury in solid organs like
the heart, where denatured proteins preserve tissue architecture while cells become
eosinophilic. Liquefactive necrosis occurs in the brain, caseous necrosis is seen in
tuberculosis, and fat necrosis involves adipose tissue saponification.
Correct Answer: B
Q6. A patient with a bacterial brain abscess has tissue that appears liquefied and pus-
filled on gross examination. Microscopically, there is complete loss of normal tissue
architecture. Which necrosis type is present?
A. Coagulative necrosis
B. Caseous necrosis
C. Liquefactive necrosis [CORRECT]
D. Dry gangrene
Rationale: Liquefactive necrosis occurs when enzymatic digestion liquefies tissue,
characteristic of bacterial infections and brain infarctions. Coagulative necrosis
preserves architecture in solid organs, caseous necrosis produces cheese-like debris
in tuberculosis, and dry gangrene is ischemic coagulative necrosis of a limb.
Correct Answer: C
Q7. A patient with acute pancreatitis has chalky white deposits in the peripancreatic
fat on CT scan. Which pathophysiologic process explains these findings?
A. Coagulative necrosis of acinar cells
B. Fat necrosis with calcium soap formation [CORRECT]
C. Caseous necrosis from granulomatous inflammation
D. Apoptosis of adipocytes
Rationale: In pancreatitis, lipases digest adipose tissue releasing fatty acids that
combine with calcium to form insoluble calcium soaps (saponification), producing
chalky white deposits. Coagulative necrosis preserves architecture, caseous necrosis
is associated with TB, and apoptosis is programmed single-cell death without calcium
deposition.
Correct Answer: B
Q8. A patient with tuberculosis has granulomatous lung lesions containing
amorphous, eosinophilic, granular debris surrounded by epithelioid macrophages.
Which necrosis type is pathognomonic for this infection?
WGU D236 PATHOPHYSIOLOGY EXAM 2026/2027 | Latest
Update | Verified Answers Grade A | Pass Guaranteed - A+
Graded
Section 1: Cellular Adaptation, Injury & Neoplasia (Q1-14)
Q1. A 78-year-old male is bedridden after a hip fracture. Muscle biopsy of his
quadriceps reveals smaller muscle fibers with increased lipofuscin pigment. Which
cellular adaptation is present?
A. Hypertrophy
B. Hyperplasia
C. Atrophy [CORRECT]
D. Metaplasia
Rationale: Atrophy is decreased cell size from disuse, denervation, or decreased
nutrition; bedridden patients develop disuse atrophy of skeletal muscle. Hypertrophy
involves increased cell size, hyperplasia involves increased cell number, and
metaplasia is a change from one cell type to another.
Correct Answer: C
Q2. A 45-year-old male with uncontrolled hypertension has left ventricular
enlargement. The cardiologist explains that individual cardiac myocytes have
increased in size from chronic pressure overload. Which process is described?
A. Physiologic hyperplasia
B. Pathologic hypertrophy [CORRECT]
C. Metaplasia
D. Dysplasia
Rationale: Hypertrophy is increased cell size in response to increased workload;
pathologic hypertrophy occurs in hypertension due to pressure overload. Hyperplasia
increases cell number, metaplasia changes cell type, and dysplasia is disordered pre-
neoplastic growth.
Correct Answer: B
,2
Q3. A 55-year-old female with GERD undergoes endoscopy. Biopsy reveals columnar
epithelium with goblet cells replacing normal squamous epithelium in the distal
esophagus. Which adaptation has occurred?
A. Dysplasia
B. Hyperplasia
C. Metaplasia [CORRECT]
D. Neoplasia
Rationale: Metaplasia is a reversible change of one differentiated cell type to another;
chronic acid exposure causes squamous-to-columnar metaplasia (Barrett esophagus).
Dysplasia involves disordered growth, hyperplasia increases cell number, and
neoplasia indicates autonomous tumor growth.
Correct Answer: C
Q4. A 32-year-old female has a Pap smear showing cervical cells with nuclear
enlargement, hyperchromasia, and loss of normal maturation. These cells show
abnormal size and shape but do not invade the basement membrane. Which process
is present?
A. Metaplasia
B. Hyperplasia
C. Dysplasia [CORRECT]
D. Carcinoma in situ
Rationale: Dysplasia is disordered epithelial growth with abnormal cell size, shape,
and organization that is pre-neoplastic and reversible if the stimulus is removed.
Metaplasia lacks cytologic atypia, hyperplasia is increased cell number without atypia,
and carcinoma in situ involves full-thickness dysplasia.
Correct Answer: C
Q5. A 68-year-old male suffers an MI. Autopsy of affected myocardium shows
preserved tissue architecture, loss of nuclei, and intensely eosinophilic cytoplasm.
Which necrosis type is present?
A. Liquefactive necrosis
B. Coagulative necrosis [CORRECT]
C. Caseous necrosis
D. Fat necrosis
, 3
Rationale: Coagulative necrosis is characteristic of ischemic injury in solid organs like
the heart, where denatured proteins preserve tissue architecture while cells become
eosinophilic. Liquefactive necrosis occurs in the brain, caseous necrosis is seen in
tuberculosis, and fat necrosis involves adipose tissue saponification.
Correct Answer: B
Q6. A patient with a bacterial brain abscess has tissue that appears liquefied and pus-
filled on gross examination. Microscopically, there is complete loss of normal tissue
architecture. Which necrosis type is present?
A. Coagulative necrosis
B. Caseous necrosis
C. Liquefactive necrosis [CORRECT]
D. Dry gangrene
Rationale: Liquefactive necrosis occurs when enzymatic digestion liquefies tissue,
characteristic of bacterial infections and brain infarctions. Coagulative necrosis
preserves architecture in solid organs, caseous necrosis produces cheese-like debris
in tuberculosis, and dry gangrene is ischemic coagulative necrosis of a limb.
Correct Answer: C
Q7. A patient with acute pancreatitis has chalky white deposits in the peripancreatic
fat on CT scan. Which pathophysiologic process explains these findings?
A. Coagulative necrosis of acinar cells
B. Fat necrosis with calcium soap formation [CORRECT]
C. Caseous necrosis from granulomatous inflammation
D. Apoptosis of adipocytes
Rationale: In pancreatitis, lipases digest adipose tissue releasing fatty acids that
combine with calcium to form insoluble calcium soaps (saponification), producing
chalky white deposits. Coagulative necrosis preserves architecture, caseous necrosis
is associated with TB, and apoptosis is programmed single-cell death without calcium
deposition.
Correct Answer: B
Q8. A patient with tuberculosis has granulomatous lung lesions containing
amorphous, eosinophilic, granular debris surrounded by epithelioid macrophages.
Which necrosis type is pathognomonic for this infection?
