WGU D236 Pathophysiology Objective
Assessment 2026
150 Practice Questions with Verified Answers & Detailed Rationales
SECTION 1: CELLULAR PATHOLOGY & INFLAMMATION (Q1-25)
Q1. A patient's biopsy report indicates cellular atrophy. Which of the following best describes
this cellular adaptation?
A) Increase in cell size
B) Decrease in cell size
C) Increase in cell number
D) Change in cell type
Answer: B) Decrease in cell size
Rationale: Atrophy is a cellular adaptation characterized by a decrease in cell size, often
resulting from disuse, denervation, ischemia, or malnutrition. This is distinct from hypertrophy
(increase in cell size), hyperplasia (increase in cell number), and metaplasia (change in cell
type) .
Q2. A patient with chronic gastric reflux develops metaplasia in the esophageal lining. Which
type of cellular adaptation is this?
A) Hypertrophy
B) Hyperplasia
C) Metaplasia
D) Dysplasia
Answer: C) Metaplasia
Rationale: Metaplasia is the reversible replacement of one differentiated cell type with another.
In Barrett's esophagus, the stratified squamous epithelium is replaced by columnar epithelium in
response to chronic acid exposure. This is an adaptive response to chronic irritation .
,Q3. Which of the following is characterized by disordered cellular growth, loss of cellular
orientation, and variation in cell size and shape?
A) Hyperplasia
B) Metaplasia
C) Dysplasia
D) Neoplasia
Answer: C) Dysplasia
Rationale: Dysplasia is characterized by disordered cellular growth, loss of cellular orientation,
and variation in cell size and shape. It is considered a pre-neoplastic condition and may
progress to malignancy if the underlying stimulus persists .
Q4. A patient has a tumor that is benign. Which characteristic would you expect?
A) Rapid growth
B) Metastasis
C) Well-differentiated cells
D) Invasion into surrounding tissue
Answer: C) Well-differentiated cells
Rationale: Benign tumors are characterized by well-differentiated cells that resemble the tissue
of origin. They grow slowly, do not metastasize, and do not invade surrounding tissues.
Adenomas and osteomas are examples of benign tumors .
Q5. A patient with a history of long-term acetaminophen use presents with nausea, vomiting,
jaundice, ascites, and leg edema. Laboratory findings show elevated aminotransferases. Which
condition is described?
A) Cholelithiasis
B) Cirrhosis
C) Pancreatitis
D) Hepatitis
Answer: B) Cirrhosis
,Rationale: Long-term acetaminophen use can cause liver damage leading to cirrhosis. Clinical
presentation includes nausea, vomiting, jaundice, ascites, and edema. Elevated
aminotransferases indicate hepatocellular injury .
Q6. Which of the following is TRUE about apoptosis?
A) It causes inflammation
B) It is programmed cell death
C) It results from injury
D) It leads to necrosis
Answer: B) It is programmed cell death
Rationale: Apoptosis is programmed cell death that occurs in a controlled, orderly manner
without triggering inflammation. It is essential for normal tissue turnover, embryonic
development, and removal of damaged cells .
Q7. A patient with chronic inflammation has elevated C-reactive protein (CRP). This indicates:
A) Acute infection only
B) Systemic inflammation
C) Autoimmune disease
D) Allergic reaction
Answer: B) Systemic inflammation
Rationale: C-reactive protein (CRP) is an acute-phase reactant produced by the liver in
response to inflammatory cytokines. Elevated CRP indicates systemic inflammation and is a
marker of increased cardiovascular risk and chronic inflammatory conditions .
Q8. Which cell type is primarily responsible for chronic inflammation?
A) Neutrophils
B) Eosinophils
C) Macrophages
D) Basophils
Answer: C) Macrophages
, Rationale: Macrophages are the predominant cells in chronic inflammation. They phagocytose
debris, present antigens, and release cytokines that perpetuate the inflammatory response.
Neutrophils are characteristic of acute inflammation .
Q9. Which of the following is a characteristic of granulation tissue?
A) Avascular
B) Pale and fibrous
C) Pink, soft, and vascular
D) Composed of epithelial cells only
Answer: C) Pink, soft, and vascular
Rationale: Granulation tissue is pink, soft, and vascular, consisting of new capillaries and
fibroblasts. It forms during the proliferative phase of wound healing and provides the foundation
for scar formation .
Q10. A patient develops a wound infection. The presence of purulent drainage indicates:
A) Serous inflammation
B) Fibrinous inflammation
C) Suppurative inflammation
D) Catarrhal inflammation
Answer: C) Suppurative inflammation
Rationale: Suppurative (purulent) inflammation is characterized by the production of pus
(purulent exudate), which contains neutrophils, dead tissue, and microorganisms. It is typically
caused by pyogenic bacteria such as Staphylococcus and Streptococcus .
Q11. Which type of hypersensitivity reaction is mediated by IgE antibodies?
A) Type I (Anaphylactic)
B) Type II (Cytotoxic)
C) Type III (Immune complex)
D) Type IV (Delayed-type)
Assessment 2026
150 Practice Questions with Verified Answers & Detailed Rationales
SECTION 1: CELLULAR PATHOLOGY & INFLAMMATION (Q1-25)
Q1. A patient's biopsy report indicates cellular atrophy. Which of the following best describes
this cellular adaptation?
A) Increase in cell size
B) Decrease in cell size
C) Increase in cell number
D) Change in cell type
Answer: B) Decrease in cell size
Rationale: Atrophy is a cellular adaptation characterized by a decrease in cell size, often
resulting from disuse, denervation, ischemia, or malnutrition. This is distinct from hypertrophy
(increase in cell size), hyperplasia (increase in cell number), and metaplasia (change in cell
type) .
Q2. A patient with chronic gastric reflux develops metaplasia in the esophageal lining. Which
type of cellular adaptation is this?
A) Hypertrophy
B) Hyperplasia
C) Metaplasia
D) Dysplasia
Answer: C) Metaplasia
Rationale: Metaplasia is the reversible replacement of one differentiated cell type with another.
In Barrett's esophagus, the stratified squamous epithelium is replaced by columnar epithelium in
response to chronic acid exposure. This is an adaptive response to chronic irritation .
,Q3. Which of the following is characterized by disordered cellular growth, loss of cellular
orientation, and variation in cell size and shape?
A) Hyperplasia
B) Metaplasia
C) Dysplasia
D) Neoplasia
Answer: C) Dysplasia
Rationale: Dysplasia is characterized by disordered cellular growth, loss of cellular orientation,
and variation in cell size and shape. It is considered a pre-neoplastic condition and may
progress to malignancy if the underlying stimulus persists .
Q4. A patient has a tumor that is benign. Which characteristic would you expect?
A) Rapid growth
B) Metastasis
C) Well-differentiated cells
D) Invasion into surrounding tissue
Answer: C) Well-differentiated cells
Rationale: Benign tumors are characterized by well-differentiated cells that resemble the tissue
of origin. They grow slowly, do not metastasize, and do not invade surrounding tissues.
Adenomas and osteomas are examples of benign tumors .
Q5. A patient with a history of long-term acetaminophen use presents with nausea, vomiting,
jaundice, ascites, and leg edema. Laboratory findings show elevated aminotransferases. Which
condition is described?
A) Cholelithiasis
B) Cirrhosis
C) Pancreatitis
D) Hepatitis
Answer: B) Cirrhosis
,Rationale: Long-term acetaminophen use can cause liver damage leading to cirrhosis. Clinical
presentation includes nausea, vomiting, jaundice, ascites, and edema. Elevated
aminotransferases indicate hepatocellular injury .
Q6. Which of the following is TRUE about apoptosis?
A) It causes inflammation
B) It is programmed cell death
C) It results from injury
D) It leads to necrosis
Answer: B) It is programmed cell death
Rationale: Apoptosis is programmed cell death that occurs in a controlled, orderly manner
without triggering inflammation. It is essential for normal tissue turnover, embryonic
development, and removal of damaged cells .
Q7. A patient with chronic inflammation has elevated C-reactive protein (CRP). This indicates:
A) Acute infection only
B) Systemic inflammation
C) Autoimmune disease
D) Allergic reaction
Answer: B) Systemic inflammation
Rationale: C-reactive protein (CRP) is an acute-phase reactant produced by the liver in
response to inflammatory cytokines. Elevated CRP indicates systemic inflammation and is a
marker of increased cardiovascular risk and chronic inflammatory conditions .
Q8. Which cell type is primarily responsible for chronic inflammation?
A) Neutrophils
B) Eosinophils
C) Macrophages
D) Basophils
Answer: C) Macrophages
, Rationale: Macrophages are the predominant cells in chronic inflammation. They phagocytose
debris, present antigens, and release cytokines that perpetuate the inflammatory response.
Neutrophils are characteristic of acute inflammation .
Q9. Which of the following is a characteristic of granulation tissue?
A) Avascular
B) Pale and fibrous
C) Pink, soft, and vascular
D) Composed of epithelial cells only
Answer: C) Pink, soft, and vascular
Rationale: Granulation tissue is pink, soft, and vascular, consisting of new capillaries and
fibroblasts. It forms during the proliferative phase of wound healing and provides the foundation
for scar formation .
Q10. A patient develops a wound infection. The presence of purulent drainage indicates:
A) Serous inflammation
B) Fibrinous inflammation
C) Suppurative inflammation
D) Catarrhal inflammation
Answer: C) Suppurative inflammation
Rationale: Suppurative (purulent) inflammation is characterized by the production of pus
(purulent exudate), which contains neutrophils, dead tissue, and microorganisms. It is typically
caused by pyogenic bacteria such as Staphylococcus and Streptococcus .
Q11. Which type of hypersensitivity reaction is mediated by IgE antibodies?
A) Type I (Anaphylactic)
B) Type II (Cytotoxic)
C) Type III (Immune complex)
D) Type IV (Delayed-type)
