NSG 530 EXAM 1 | ADVANCED PATHOPHYSIOLOGY | WILKES QUESTIONS AND VERIFIED ANSWERS
WILKES UNIVERSITY | GRADUATE NURSING & ADVANCED PRACTICE EDUCATION
NSG530 / NSG 530 EXAM 1 (LATEST ):
ADVANCED PATHOPHYSIOLOGY
QUESTIONS AND VERIFIED ANSWERS | 100% CORRECT | GRADE A - WILKES
Aligned with the Wilkes University NSG 530 Course Syllabus, the AACN Essentials of Master's Education in Nursing, and
Advanced Pathophysiology Competencies (2026/2027 Edition).
100 8 A-D / 30
Total Questions Content Sections One Best Answer Format Recall / Application / Analysis (%)
Each item provides four response options with one verified best answer, a marked key, and a rationale citing NSG 530 curriculum
and advanced pathophysiology principles.
Section 1: Cellular & Molecular Pathophysiology
Questions 1 through 15
Q1: A 58-year-old man is evaluated 6 weeks after sustaining a spinal cord injury that left him with
complete immobility of both lower extremities. Physical assessment reveals that his left and right calf
circumferences have decreased by 4 cm, and the muscles feel firm but not swollen. Which cellular
mechanism best explains this adaptation?
A. Increased accumulation of intracellular glycogen and water within myocytes
B. Compensatory mitotic division of mature skeletal muscle cells to replace lost fibers
C. Ubiquitin-proteasome-mediated proteolysis of myofibrillar proteins triggered by reduced
mechanical loading [CORRECT]
D. Replacement of atrophied myocytes by mature adipocytes as a form of metaplasia
Correct Answer: C
Rationale: Disuse atrophy results from decreased protein synthesis paired with accelerated proteasomal
degradation of actin and myosin, the classic ubiquitin-proteasome pathway described in the NSG 530 cellular
injury unit. Option A describes mechanisms of hydropic swelling, not atrophy. Option B is incorrect because
mature skeletal muscle cells are terminally differentiated and cannot regenerate by mitosis to any meaningful
degree. Option D confounds atrophy with adipose replacement, which occurs in severe sarcopenia but is not the
primary adaptive mechanism.
Wilkes University | NSG 530 Advanced Pathophysiology | 2026/2027 Edition 1
,NSG 530 EXAM 1 | ADVANCED PATHOPHYSIOLOGY | WILKES QUESTIONS AND VERIFIED ANSWERS
Q2: An autopsy study of a patient with long-standing aortic valve stenosis demonstrates a markedly
thickened left ventricular wall with enlarged myocytes and no increase in cell number. Which statement best
characterizes this adaptive response?
A. It is hyperplasia driven by growth factor stimulation of quiescent myocytes
B. It is pathologic hypertrophy mediated by mechanical stretch and re-expression of fetal gene
programs [CORRECT]
C. It is physiologic hypertrophy identical to that seen in trained athletes
D. It is dysplasia reflecting disordered myocyte growth and maturation
Correct Answer: B
Rationale: Pressure overload from aortic stenosis produces pathologic concentric hypertrophy in which
mechanical stretch activates stretch receptors, MAP kinase and PI3K-AKT signaling, and re-expression of fetal
genes such as ANP and BNP, a core NSG 530 adaptation concept. Option A is wrong because adult cardiac
myocytes have limited proliferative capacity, so the response is enlargement, not hyperplasia. Option C is
incorrect because athlete's heart is physiologic with normal or enhanced function, whereas pressure-overload
hypertrophy eventually progresses to failure. Option D misuses dysplasia, which denotes disordered epithelial
maturation, not ventricular remodeling.
Q3: A 62-year-old smoker undergoes bronchoscopy, and the pathologist reports that the normal
pseudostratified ciliated columnar epithelium of the bronchus has been replaced by stratified squamous
epithelium. Which statement accurately describes this change?
A. It is a reversible adaptive replacement of one mature cell type by another cell type better able to
withstand the injurious stimulus [CORRECT]
B. It is an irreversible malignant transformation requiring immediate surgical resection
C. It is an increase in the number of ciliated cells in response to chronic irritation
D. It is a normal age-related change unrelated to tobacco exposure
Correct Answer: A
Rationale: Metaplasia is a reversible adaptation in which one mature adult cell type is replaced by another that is
more resistant to a hostile environment, in this case squamous epithelium replacing ciliated columnar epithelium
under chronic tobacco injury, a standard NSG 530 illustration. Option B overstates the process, because
metaplasia itself is not malignant, although persistent exposure can progress through dysplasia to carcinoma.
Option C describes hyperplasia of the original cell line, which does not occur here. Option D is false because this
metaplasia is directly linked to smoking rather than aging.
Wilkes University | NSG 530 Advanced Pathophysiology | 2026/2027 Edition 2
,NSG 530 EXAM 1 | ADVANCED PATHOPHYSIOLOGY | WILKES QUESTIONS AND VERIFIED ANSWERS
Q4: A 49-year-old man with a 20-year history of gastroesophageal reflux undergoes endoscopy, and biopsy
of the distal esophagus reveals intestinal-type columnar epithelium with goblet cells. The advanced practice
nurse explains the pathophysiologic significance of this finding, noting that the patient is now at increased
risk for which condition?
A. Squamous cell carcinoma of the esophagus
B. Gastric adenocarcinoma of the antrum
C. Leiomyoma of the esophageal wall
D. Esophageal adenocarcinoma [CORRECT]
Correct Answer: D
Rationale: Barrett esophagus is intestinal metaplasia of the distal esophagus induced by chronic acid exposure,
and it is the major risk factor for esophageal adenocarcinoma, a progression pathway emphasized in the NSG 530
neoplasia and cellular adaptation modules. Option A is associated with alcohol and tobacco use and arises from
squamous epithelium, not Barrett metaplasia. Option B is linked to chronic H. pylori gastritis and does not arise in
the esophagus. Option C is a benign smooth muscle tumor unrelated to reflux-induced metaplasia.
Q5: A 66-year-old woman dies 5 days after an extensive anterior myocardial infarction. Autopsy of the
infarcted region shows coagulative necrosis characterized by preserved tissue architecture, protein
denaturation, and infiltration of the dead tissue by acute inflammatory cells. Which feature distinguishes
coagulative necrosis from liquefactive necrosis?
A. Coagulative necrosis occurs almost exclusively within the central nervous system
B. Coagulative necrosis is defined by complete enzymatic liquefaction of dead cells into pus-like
debris
C. Coagulative necrosis preserves the architectural outline of dead tissue while protein denaturation
exceeds enzymatic digestion [CORRECT]
D. Coagulative necrosis requires secondary infection by pyogenic bacteria for its development
Correct Answer: C
Rationale: In coagulative necrosis, ischemic injury denatures structural proteins and enzymes while the generic
architecture of the dead tissue persists for days, which is why infarcts retain a soft but recognizable outline; this
pattern is the signature hypoxic death of most solid organs in the NSG 530 necrosis framework. Option A
describes liquefactive necrosis, which dominates in the lipid-rich CNS because of its scant structural protein.
Option B describes liquefactive necrosis again, where enzymatic digestion predominates. Option D is incorrect
because bacterial infection is the basis of gangrenous or suppurative processes, not uncomplicated coagulative
necrosis.
Wilkes University | NSG 530 Advanced Pathophysiology | 2026/2027 Edition 3
, NSG 530 EXAM 1 | ADVANCED PATHOPHYSIOLOGY | WILKES QUESTIONS AND VERIFIED ANSWERS
Q6: Which statement best differentiates apoptosis from necrosis at the cellular level?
A. Apoptosis is always pathologic, whereas necrosis is a regulated physiologic process
B. Apoptosis is an energy-dependent, genetically programmed process characterized by cell shrinkage,
chromatin condensation, and absence of an inflammatory response [CORRECT]
C. Apoptosis causes cell membrane rupture with spillage of contents and vigorous inflammation
D. Apoptosis requires an intact complement system to fragment the cell into apoptotic bodies
Correct Answer: B
Rationale: Apoptosis is an ATP-dependent program of cell suicide driven by caspases, producing shrinkage,
nuclear fragmentation into apoptotic bodies, and rapid phagocytosis without inflammation, a foundational contrast
taught in the NSG 530 cell death unit. Option A reverses reality, because apoptosis serves vital physiologic roles
such as embryogenesis and elimination of damaged cells. Option C describes necrosis, in which membrane failure
floods the tissue with inflammatory contents. Option D is fabricated, since complement mediates immune lysis
rather than caspase-driven apoptotic body formation.
Q7: A patient with an acute limb ischemia undergoes successful thrombectomy, but during the hours after
revascularization the tissue shows paradoxically worse injury than before blood flow returned. Which
mechanism is responsible for this reperfusion injury?
A. Sustained adenosine triphosphate surplus that overdrives mitochondrial calcium pumps
B. Excessive formation of stable nitric oxide that irreversibly vasodilates capillary beds
C. Depletion of intracellular potassium that hyperpolarizes the mitochondrial membrane
D. Generation of reactive oxygen species by re-energized mitochondria and xanthine oxidase, with
secondary calcium overload [CORRECT]
Correct Answer: D
Rationale: Reperfusion floods the ischemic tissue with oxygen that mitochondria and xanthine oxidase convert
into superoxide and hydroxyl radicals, while restored ATP allows lethal calcium influx, together producing
membrane lipid peroxidation and cell death, a mechanism stressed in the NSG 530 oxidative stress content.
Option A is physiologically impossible, since ischemia depletes ATP rather than creating a surplus. Option B
misidentifies nitric oxide as stable rather than the reactive peroxynitrite pathway, and vasodilation is not itself
cytotoxic. Option C confuses potassium handling with the mitochondrial calcium overload that actually mediates
the injury.
Wilkes University | NSG 530 Advanced Pathophysiology | 2026/2027 Edition 4
WILKES UNIVERSITY | GRADUATE NURSING & ADVANCED PRACTICE EDUCATION
NSG530 / NSG 530 EXAM 1 (LATEST ):
ADVANCED PATHOPHYSIOLOGY
QUESTIONS AND VERIFIED ANSWERS | 100% CORRECT | GRADE A - WILKES
Aligned with the Wilkes University NSG 530 Course Syllabus, the AACN Essentials of Master's Education in Nursing, and
Advanced Pathophysiology Competencies (2026/2027 Edition).
100 8 A-D / 30
Total Questions Content Sections One Best Answer Format Recall / Application / Analysis (%)
Each item provides four response options with one verified best answer, a marked key, and a rationale citing NSG 530 curriculum
and advanced pathophysiology principles.
Section 1: Cellular & Molecular Pathophysiology
Questions 1 through 15
Q1: A 58-year-old man is evaluated 6 weeks after sustaining a spinal cord injury that left him with
complete immobility of both lower extremities. Physical assessment reveals that his left and right calf
circumferences have decreased by 4 cm, and the muscles feel firm but not swollen. Which cellular
mechanism best explains this adaptation?
A. Increased accumulation of intracellular glycogen and water within myocytes
B. Compensatory mitotic division of mature skeletal muscle cells to replace lost fibers
C. Ubiquitin-proteasome-mediated proteolysis of myofibrillar proteins triggered by reduced
mechanical loading [CORRECT]
D. Replacement of atrophied myocytes by mature adipocytes as a form of metaplasia
Correct Answer: C
Rationale: Disuse atrophy results from decreased protein synthesis paired with accelerated proteasomal
degradation of actin and myosin, the classic ubiquitin-proteasome pathway described in the NSG 530 cellular
injury unit. Option A describes mechanisms of hydropic swelling, not atrophy. Option B is incorrect because
mature skeletal muscle cells are terminally differentiated and cannot regenerate by mitosis to any meaningful
degree. Option D confounds atrophy with adipose replacement, which occurs in severe sarcopenia but is not the
primary adaptive mechanism.
Wilkes University | NSG 530 Advanced Pathophysiology | 2026/2027 Edition 1
,NSG 530 EXAM 1 | ADVANCED PATHOPHYSIOLOGY | WILKES QUESTIONS AND VERIFIED ANSWERS
Q2: An autopsy study of a patient with long-standing aortic valve stenosis demonstrates a markedly
thickened left ventricular wall with enlarged myocytes and no increase in cell number. Which statement best
characterizes this adaptive response?
A. It is hyperplasia driven by growth factor stimulation of quiescent myocytes
B. It is pathologic hypertrophy mediated by mechanical stretch and re-expression of fetal gene
programs [CORRECT]
C. It is physiologic hypertrophy identical to that seen in trained athletes
D. It is dysplasia reflecting disordered myocyte growth and maturation
Correct Answer: B
Rationale: Pressure overload from aortic stenosis produces pathologic concentric hypertrophy in which
mechanical stretch activates stretch receptors, MAP kinase and PI3K-AKT signaling, and re-expression of fetal
genes such as ANP and BNP, a core NSG 530 adaptation concept. Option A is wrong because adult cardiac
myocytes have limited proliferative capacity, so the response is enlargement, not hyperplasia. Option C is
incorrect because athlete's heart is physiologic with normal or enhanced function, whereas pressure-overload
hypertrophy eventually progresses to failure. Option D misuses dysplasia, which denotes disordered epithelial
maturation, not ventricular remodeling.
Q3: A 62-year-old smoker undergoes bronchoscopy, and the pathologist reports that the normal
pseudostratified ciliated columnar epithelium of the bronchus has been replaced by stratified squamous
epithelium. Which statement accurately describes this change?
A. It is a reversible adaptive replacement of one mature cell type by another cell type better able to
withstand the injurious stimulus [CORRECT]
B. It is an irreversible malignant transformation requiring immediate surgical resection
C. It is an increase in the number of ciliated cells in response to chronic irritation
D. It is a normal age-related change unrelated to tobacco exposure
Correct Answer: A
Rationale: Metaplasia is a reversible adaptation in which one mature adult cell type is replaced by another that is
more resistant to a hostile environment, in this case squamous epithelium replacing ciliated columnar epithelium
under chronic tobacco injury, a standard NSG 530 illustration. Option B overstates the process, because
metaplasia itself is not malignant, although persistent exposure can progress through dysplasia to carcinoma.
Option C describes hyperplasia of the original cell line, which does not occur here. Option D is false because this
metaplasia is directly linked to smoking rather than aging.
Wilkes University | NSG 530 Advanced Pathophysiology | 2026/2027 Edition 2
,NSG 530 EXAM 1 | ADVANCED PATHOPHYSIOLOGY | WILKES QUESTIONS AND VERIFIED ANSWERS
Q4: A 49-year-old man with a 20-year history of gastroesophageal reflux undergoes endoscopy, and biopsy
of the distal esophagus reveals intestinal-type columnar epithelium with goblet cells. The advanced practice
nurse explains the pathophysiologic significance of this finding, noting that the patient is now at increased
risk for which condition?
A. Squamous cell carcinoma of the esophagus
B. Gastric adenocarcinoma of the antrum
C. Leiomyoma of the esophageal wall
D. Esophageal adenocarcinoma [CORRECT]
Correct Answer: D
Rationale: Barrett esophagus is intestinal metaplasia of the distal esophagus induced by chronic acid exposure,
and it is the major risk factor for esophageal adenocarcinoma, a progression pathway emphasized in the NSG 530
neoplasia and cellular adaptation modules. Option A is associated with alcohol and tobacco use and arises from
squamous epithelium, not Barrett metaplasia. Option B is linked to chronic H. pylori gastritis and does not arise in
the esophagus. Option C is a benign smooth muscle tumor unrelated to reflux-induced metaplasia.
Q5: A 66-year-old woman dies 5 days after an extensive anterior myocardial infarction. Autopsy of the
infarcted region shows coagulative necrosis characterized by preserved tissue architecture, protein
denaturation, and infiltration of the dead tissue by acute inflammatory cells. Which feature distinguishes
coagulative necrosis from liquefactive necrosis?
A. Coagulative necrosis occurs almost exclusively within the central nervous system
B. Coagulative necrosis is defined by complete enzymatic liquefaction of dead cells into pus-like
debris
C. Coagulative necrosis preserves the architectural outline of dead tissue while protein denaturation
exceeds enzymatic digestion [CORRECT]
D. Coagulative necrosis requires secondary infection by pyogenic bacteria for its development
Correct Answer: C
Rationale: In coagulative necrosis, ischemic injury denatures structural proteins and enzymes while the generic
architecture of the dead tissue persists for days, which is why infarcts retain a soft but recognizable outline; this
pattern is the signature hypoxic death of most solid organs in the NSG 530 necrosis framework. Option A
describes liquefactive necrosis, which dominates in the lipid-rich CNS because of its scant structural protein.
Option B describes liquefactive necrosis again, where enzymatic digestion predominates. Option D is incorrect
because bacterial infection is the basis of gangrenous or suppurative processes, not uncomplicated coagulative
necrosis.
Wilkes University | NSG 530 Advanced Pathophysiology | 2026/2027 Edition 3
, NSG 530 EXAM 1 | ADVANCED PATHOPHYSIOLOGY | WILKES QUESTIONS AND VERIFIED ANSWERS
Q6: Which statement best differentiates apoptosis from necrosis at the cellular level?
A. Apoptosis is always pathologic, whereas necrosis is a regulated physiologic process
B. Apoptosis is an energy-dependent, genetically programmed process characterized by cell shrinkage,
chromatin condensation, and absence of an inflammatory response [CORRECT]
C. Apoptosis causes cell membrane rupture with spillage of contents and vigorous inflammation
D. Apoptosis requires an intact complement system to fragment the cell into apoptotic bodies
Correct Answer: B
Rationale: Apoptosis is an ATP-dependent program of cell suicide driven by caspases, producing shrinkage,
nuclear fragmentation into apoptotic bodies, and rapid phagocytosis without inflammation, a foundational contrast
taught in the NSG 530 cell death unit. Option A reverses reality, because apoptosis serves vital physiologic roles
such as embryogenesis and elimination of damaged cells. Option C describes necrosis, in which membrane failure
floods the tissue with inflammatory contents. Option D is fabricated, since complement mediates immune lysis
rather than caspase-driven apoptotic body formation.
Q7: A patient with an acute limb ischemia undergoes successful thrombectomy, but during the hours after
revascularization the tissue shows paradoxically worse injury than before blood flow returned. Which
mechanism is responsible for this reperfusion injury?
A. Sustained adenosine triphosphate surplus that overdrives mitochondrial calcium pumps
B. Excessive formation of stable nitric oxide that irreversibly vasodilates capillary beds
C. Depletion of intracellular potassium that hyperpolarizes the mitochondrial membrane
D. Generation of reactive oxygen species by re-energized mitochondria and xanthine oxidase, with
secondary calcium overload [CORRECT]
Correct Answer: D
Rationale: Reperfusion floods the ischemic tissue with oxygen that mitochondria and xanthine oxidase convert
into superoxide and hydroxyl radicals, while restored ATP allows lethal calcium influx, together producing
membrane lipid peroxidation and cell death, a mechanism stressed in the NSG 530 oxidative stress content.
Option A is physiologically impossible, since ischemia depletes ATP rather than creating a surplus. Option B
misidentifies nitric oxide as stable rather than the reactive peroxynitrite pathway, and vasodilation is not itself
cytotoxic. Option C confuses potassium handling with the mitochondrial calcium overload that actually mediates
the injury.
Wilkes University | NSG 530 Advanced Pathophysiology | 2026/2027 Edition 4
