Western Governors University | D115 Advanced Pathophysiology
WGU D115 Advanced Pathophysiology
Objective Assessment 2026/2027 |
Verified Questions
Western Governors University | Advanced Pathophysiology | Professional Graduate Nursing Candidates
150 Verified Questions | 6 Core Domains | Academic Year 2026/2027
Prepared by
Western Governors University | D115 Advanced Pathophysiology
Objective Assessment (OA) and Pre-Assessment (Pre-OA) Actual Exam | Academic Year
2026/2027
WGU D115 Advanced Pathophysiology Objective Assessment 2026/2027 | Verified Questions
,INTRODUCTION
This document contains 150 Verified Questions covering the full WGU D115 Advanced Pathophysiology
Objective Assessment and Pre-Assessment. The questions address all six core domains of the official
content outline: Cellular Adaptation, Injury & Wound Healing; Genetics & Multifactorial Disease;
Inflammation, Immunity & Hypersensitivity; Hematologic & Cardiovascular Alterations; Pulmonary,
Renal & Endocrine Alterations; and Neurologic, GI & Multisystem Pathophysiology. Content is original
and designed to reinforce the official D115 course competencies for actual exam readiness and
pathophysiologic proficiency, aligned to the 2026/2027 academic year. Candidates are expected to
demonstrate mastery of mechanisms of disease at the cellular, organ, and system levels consistent with
graduate nursing pathophysiology standards.
ACTUAL QUESTIONS
Domain 1: Cellular Adaptation, Injury & Wound Healing
Question 1. Cellular adaptation in which cells increase in size due to increased workload is
called:
A. Hyperplasia
B. Hypertrophy
C. Metaplasia
D. Atrophy
Correct Answer: B
Rationale: Hypertrophy is an increase in cell size (and often organ size) in response to increased
demand or hormonal stimulation, as seen in skeletal muscle with resistance training or cardiac muscle
in hypertension.
Question 2. Replacement of one differentiated cell type by another differentiated cell type
is:
A. Hyperplasia
B. Dysplasia
C. Neoplasia
D. Metaplasia
Correct Answer: A
Rationale: Metaplasia is the reversible replacement of one mature cell type by another, often in
response to chronic irritation (e.g., squamous metaplasia of bronchial epithelium in smokers).
Question 3. Irreversible cell injury is characterized by:
A. Cellular swelling only
B. Fatty change only
C. Membrane damage, mitochondrial permeability transition, and calcium influx leading to necrosis
or apoptosis
D. Transient ATP depletion without membrane damage
Correct Answer: B
Rationale: When injury exceeds the cell's adaptive capacity, severe membrane and mitochondrial
damage, calcium overload, and enzyme activation produce irreversible injury culminating in necrosis
or apoptosis.
Question 4. The most common cause of cellular hypoxia is:
A. Carbon monoxide poisoning exclusively
B. Ischemia due to reduced blood flow
WGU D115 Advanced Pathophysiology Objective Assessment 2026/2027 | Verified Questions
, C. Vitamin deficiency only
D. Hyperthermia
Correct Answer: A
Rationale: Ischemia (reduced arterial blood flow) is the most frequent cause of hypoxia and subsequent
cell injury in clinical settings such as myocardial infarction and stroke.
Question 5. Apoptosis differs from necrosis in that apoptosis:
A. Always causes intense inflammation
B. Is a programmed, energy-dependent process that removes cells without significant inflammation
C. Results from severe membrane rupture only
D. Is always pathologic
Correct Answer: D
Rationale: Apoptosis is orderly programmed cell death with cell shrinkage, chromatin condensation,
and phagocytic clearance, minimizing inflammation. Necrosis is uncontrolled cell death that elicits
inflammation.
Question 6. Free radical (reactive oxygen species) injury damages cells primarily by:
A. Lipid peroxidation of membranes, protein modification, and DNA damage
B. Only increasing ATP production
C. Stabilizing membrane phospholipids
D. Enhancing DNA repair exclusively
Correct Answer: A
Rationale: ROS attack polyunsaturated lipids in membranes (lipid peroxidation), oxidize proteins, and
damage nucleic acids, contributing to reperfusion injury and many chronic diseases.
Question 7. Reperfusion injury after ischemia is partly mediated by:
A. Immediate full restoration of function without risk
B. Only bacterial infection
C. Generation of reactive oxygen species, inflammation, and calcium overload when blood flow is
restored
D. Complete absence of oxygen-derived free radicals
Correct Answer: C
Rationale: When oxygen returns to ischemic tissue, ROS are generated, neutrophils infiltrate, and
calcium dysregulation can extend injury beyond the original ischemic zone.
Question 8. Atrophy is a decrease in cell size that may result from:
A. Only increased hormonal stimulation
B. Disuse, denervation, ischemia, inadequate nutrition, or reduced hormonal stimulation
C. Only hyperplasia of neighboring cells
D. Always irreversible neoplastic change
Correct Answer: D
Rationale: Atrophy is adaptive reduction in cell size and organ mass when workload or trophic signals
decrease; causes include disuse, loss of innervation, ischemia, malnutrition, and endocrine deficiency.
Question 9. Dysplasia is best described as:
A. A disorderly, atypical growth of cells with variation in size, shape, and organization that may be a
precursor to malignancy
B. Always synonymous with invasive cancer
C. A normal adaptive response identical to hypertrophy
D. An increase in the number of normal cells only
WGU D115 Advanced Pathophysiology Objective Assessment 2026/2027 | Verified Questions
, Correct Answer: B
Rationale: Dysplasia involves atypical cellular changes (pleomorphism, hyperchromasia, disordered
architecture). Severe dysplasia may progress to carcinoma in situ or invasive cancer but is not itself
invasive.
Question 10. Coagulative necrosis is typically seen in:
A. The brain after ischemic stroke
B. Abscess cavities only
C. Ischemic infarction of solid organs such as heart, kidney, and spleen
D. Pancreatic fat necrosis exclusively
Correct Answer: D
Rationale: Coagulative necrosis preserves tissue architecture initially and is the pattern of ischemic
infarction in most solid organs except the brain (which usually shows liquefactive necrosis).
Question 11. Liquefactive necrosis is characteristic of:
A. Myocardial infarction
B. Focal bacterial infections (abscesses) and ischemic injury in the brain
C. Caseating granulomas only
D. Fat necrosis of the breast only
Correct Answer: B
Rationale: Enzymatic digestion of cells produces a liquid viscous mass. This pattern occurs in abscesses
and in brain infarcts.
Question 12. Caseous necrosis is classically associated with:
A. Tuberculosis and some fungal infections, producing a cheese-like gross appearance
B. Only acute myocardial infarction
C. Only enzymatic fat necrosis
D. Gangrene of the extremities exclusively
Correct Answer: C
Rationale: Caseous necrosis combines features of coagulative and liquefactive necrosis and is typical of
granulomatous inflammation in tuberculosis.
Question 13. The inflammatory phase of wound healing is characterized by:
A. Immediate collagen remodeling without cellular infiltration
B. Only epithelialization
C. Hemostasis, neutrophil and macrophage infiltration, and removal of debris
D. Complete scar maturation in the first 24 hours
Correct Answer: B
Rationale: Early wound healing involves hemostasis and an inflammatory phase in which neutrophils
and then macrophages clear debris and release growth factors that prepare the wound for
proliferation.
Question 14. Granulation tissue in wound healing consists of:
A. Dense avascular scar only
B. New capillaries, fibroblasts, and loose extracellular matrix
C. Only necrotic debris
D. Mature organized collagen without vessels
Correct Answer: A
WGU D115 Advanced Pathophysiology Objective Assessment 2026/2027 | Verified Questions
WGU D115 Advanced Pathophysiology
Objective Assessment 2026/2027 |
Verified Questions
Western Governors University | Advanced Pathophysiology | Professional Graduate Nursing Candidates
150 Verified Questions | 6 Core Domains | Academic Year 2026/2027
Prepared by
Western Governors University | D115 Advanced Pathophysiology
Objective Assessment (OA) and Pre-Assessment (Pre-OA) Actual Exam | Academic Year
2026/2027
WGU D115 Advanced Pathophysiology Objective Assessment 2026/2027 | Verified Questions
,INTRODUCTION
This document contains 150 Verified Questions covering the full WGU D115 Advanced Pathophysiology
Objective Assessment and Pre-Assessment. The questions address all six core domains of the official
content outline: Cellular Adaptation, Injury & Wound Healing; Genetics & Multifactorial Disease;
Inflammation, Immunity & Hypersensitivity; Hematologic & Cardiovascular Alterations; Pulmonary,
Renal & Endocrine Alterations; and Neurologic, GI & Multisystem Pathophysiology. Content is original
and designed to reinforce the official D115 course competencies for actual exam readiness and
pathophysiologic proficiency, aligned to the 2026/2027 academic year. Candidates are expected to
demonstrate mastery of mechanisms of disease at the cellular, organ, and system levels consistent with
graduate nursing pathophysiology standards.
ACTUAL QUESTIONS
Domain 1: Cellular Adaptation, Injury & Wound Healing
Question 1. Cellular adaptation in which cells increase in size due to increased workload is
called:
A. Hyperplasia
B. Hypertrophy
C. Metaplasia
D. Atrophy
Correct Answer: B
Rationale: Hypertrophy is an increase in cell size (and often organ size) in response to increased
demand or hormonal stimulation, as seen in skeletal muscle with resistance training or cardiac muscle
in hypertension.
Question 2. Replacement of one differentiated cell type by another differentiated cell type
is:
A. Hyperplasia
B. Dysplasia
C. Neoplasia
D. Metaplasia
Correct Answer: A
Rationale: Metaplasia is the reversible replacement of one mature cell type by another, often in
response to chronic irritation (e.g., squamous metaplasia of bronchial epithelium in smokers).
Question 3. Irreversible cell injury is characterized by:
A. Cellular swelling only
B. Fatty change only
C. Membrane damage, mitochondrial permeability transition, and calcium influx leading to necrosis
or apoptosis
D. Transient ATP depletion without membrane damage
Correct Answer: B
Rationale: When injury exceeds the cell's adaptive capacity, severe membrane and mitochondrial
damage, calcium overload, and enzyme activation produce irreversible injury culminating in necrosis
or apoptosis.
Question 4. The most common cause of cellular hypoxia is:
A. Carbon monoxide poisoning exclusively
B. Ischemia due to reduced blood flow
WGU D115 Advanced Pathophysiology Objective Assessment 2026/2027 | Verified Questions
, C. Vitamin deficiency only
D. Hyperthermia
Correct Answer: A
Rationale: Ischemia (reduced arterial blood flow) is the most frequent cause of hypoxia and subsequent
cell injury in clinical settings such as myocardial infarction and stroke.
Question 5. Apoptosis differs from necrosis in that apoptosis:
A. Always causes intense inflammation
B. Is a programmed, energy-dependent process that removes cells without significant inflammation
C. Results from severe membrane rupture only
D. Is always pathologic
Correct Answer: D
Rationale: Apoptosis is orderly programmed cell death with cell shrinkage, chromatin condensation,
and phagocytic clearance, minimizing inflammation. Necrosis is uncontrolled cell death that elicits
inflammation.
Question 6. Free radical (reactive oxygen species) injury damages cells primarily by:
A. Lipid peroxidation of membranes, protein modification, and DNA damage
B. Only increasing ATP production
C. Stabilizing membrane phospholipids
D. Enhancing DNA repair exclusively
Correct Answer: A
Rationale: ROS attack polyunsaturated lipids in membranes (lipid peroxidation), oxidize proteins, and
damage nucleic acids, contributing to reperfusion injury and many chronic diseases.
Question 7. Reperfusion injury after ischemia is partly mediated by:
A. Immediate full restoration of function without risk
B. Only bacterial infection
C. Generation of reactive oxygen species, inflammation, and calcium overload when blood flow is
restored
D. Complete absence of oxygen-derived free radicals
Correct Answer: C
Rationale: When oxygen returns to ischemic tissue, ROS are generated, neutrophils infiltrate, and
calcium dysregulation can extend injury beyond the original ischemic zone.
Question 8. Atrophy is a decrease in cell size that may result from:
A. Only increased hormonal stimulation
B. Disuse, denervation, ischemia, inadequate nutrition, or reduced hormonal stimulation
C. Only hyperplasia of neighboring cells
D. Always irreversible neoplastic change
Correct Answer: D
Rationale: Atrophy is adaptive reduction in cell size and organ mass when workload or trophic signals
decrease; causes include disuse, loss of innervation, ischemia, malnutrition, and endocrine deficiency.
Question 9. Dysplasia is best described as:
A. A disorderly, atypical growth of cells with variation in size, shape, and organization that may be a
precursor to malignancy
B. Always synonymous with invasive cancer
C. A normal adaptive response identical to hypertrophy
D. An increase in the number of normal cells only
WGU D115 Advanced Pathophysiology Objective Assessment 2026/2027 | Verified Questions
, Correct Answer: B
Rationale: Dysplasia involves atypical cellular changes (pleomorphism, hyperchromasia, disordered
architecture). Severe dysplasia may progress to carcinoma in situ or invasive cancer but is not itself
invasive.
Question 10. Coagulative necrosis is typically seen in:
A. The brain after ischemic stroke
B. Abscess cavities only
C. Ischemic infarction of solid organs such as heart, kidney, and spleen
D. Pancreatic fat necrosis exclusively
Correct Answer: D
Rationale: Coagulative necrosis preserves tissue architecture initially and is the pattern of ischemic
infarction in most solid organs except the brain (which usually shows liquefactive necrosis).
Question 11. Liquefactive necrosis is characteristic of:
A. Myocardial infarction
B. Focal bacterial infections (abscesses) and ischemic injury in the brain
C. Caseating granulomas only
D. Fat necrosis of the breast only
Correct Answer: B
Rationale: Enzymatic digestion of cells produces a liquid viscous mass. This pattern occurs in abscesses
and in brain infarcts.
Question 12. Caseous necrosis is classically associated with:
A. Tuberculosis and some fungal infections, producing a cheese-like gross appearance
B. Only acute myocardial infarction
C. Only enzymatic fat necrosis
D. Gangrene of the extremities exclusively
Correct Answer: C
Rationale: Caseous necrosis combines features of coagulative and liquefactive necrosis and is typical of
granulomatous inflammation in tuberculosis.
Question 13. The inflammatory phase of wound healing is characterized by:
A. Immediate collagen remodeling without cellular infiltration
B. Only epithelialization
C. Hemostasis, neutrophil and macrophage infiltration, and removal of debris
D. Complete scar maturation in the first 24 hours
Correct Answer: B
Rationale: Early wound healing involves hemostasis and an inflammatory phase in which neutrophils
and then macrophages clear debris and release growth factors that prepare the wound for
proliferation.
Question 14. Granulation tissue in wound healing consists of:
A. Dense avascular scar only
B. New capillaries, fibroblasts, and loose extracellular matrix
C. Only necrotic debris
D. Mature organized collagen without vessels
Correct Answer: A
WGU D115 Advanced Pathophysiology Objective Assessment 2026/2027 | Verified Questions
