NSG530 / NSG 530 EXAM 1 (LATEST )
ADVANCED PATHOPHYSIOLOGY
QUESTIONS AND VERIFIED ANSWERS | 100% CORRECT | GRADE A
Wilkes University | Graduate Nursing Program
Total Questions: 100 | Format: Multiple Choice (A-D) | Cognitive Levels: 20% Recall, 50% Application, 30% Analysis
Aligned With: Wilkes University NSG 530 Course Syllabus, AACN Essentials of Master's Education, Advanced
Pathophysiology Competencies (2026/2027 Edition)
Exam Blueprint: This comprehensive examination contains 100 multiple-choice questions across eight core content
areas of advanced pathophysiology. Approximately 75% of items are scenario-based clinical reasoning questions
grounded in patient presentations and case studies; 25% are direct knowledge items. Special focus areas include 15
clinical reasoning scenarios, 10 laboratory value interpretation items, and 10 pathophysiological mechanism questions.
Each question includes the correct answer and a 2-4 sentence rationale tied to NSG 530 curriculum, AACN Essentials,
and advanced pathophysiology principles.
Section 1: Cellular & Molecular Pathophysiology
Coverage: cellular injury, adaptation, death (atrophy, hypertrophy, hyperplasia, metaplasia, dysplasia, necrosis, apoptosis); cellular
mechanisms (membrane transport, signal transduction, energy metabolism, oxidative stress); inflammation and repair; immunology;
neoplasia (carcinogenesis, tumor suppressor genes, oncogenes, metastasis). 15 questions.
Q1. A 68-year-old male with a long-standing history of hypertension presents with an echocardiogram
demonstrating increased left ventricular wall thickness without an increase in chamber size. Which cellular
adaptation best explains this finding?
A. Atrophy due to decreased workload
B. Hypertrophy from increased pressure overload *[CORRECT]*
C. Hyperplasia from hormonal stimulation
D. Metaplasia from chronic irritation
Correct Answer: B
Rationale: Pressure overload in hypertension forces cardiomyocytes to increase in size (hypertrophy) because cardiac muscle
cells are terminally differentiated and cannot undergo mitosis. Atrophy is a decrease in cell size from disuse; hyperplasia requires
cells capable of division; metaplasia is reversible replacement of one cell type with another, none of which apply here.
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Q2. A 55-year-old chronic smoker undergoes bronchoscopy with biopsy of the bronchial epithelium. Pathology
reveals replacement of normal ciliated pseudostratified columnar epithelium with stratified squamous
epithelium. This adaptive change is best described as:
A. Dysplasia requiring immediate chemotherapy
B. Anaplasia indicating invasive carcinoma
C. Metaplasia from chronic smoke exposure *[CORRECT]*
D. Hyperplasia from hormonal stimulation
Correct Answer: C
Rationale: Metaplasia is the reversible replacement of one differentiated cell type (ciliated columnar) with another (squamous)
better suited to withstand chronic smoke irritation. Dysplasia implies disordered growth, anaplasia indicates loss of
differentiation in cancer, and hyperplasia is increased cell number—not a cell-type switch. Per NSG 530, this represents an
adaptive response that may precede malignant transformation.
Q3. A pathologist examining a necrotic tissue specimen from an acute myocardial infarction observes
coagulative necrosis. Which morphologic feature is characteristic of this type of necrosis?
A. Liquefaction with neutrophil infiltration forming pus
B. Tissue architecture preserved with protein denaturation *[CORRECT]*
C. Cheesy, caseous appearance from mycobacterial infection
D. Fatty deposits in pancreas with saponification
Correct Answer: B
Rationale: Coagulative necrosis, characteristic of ischemic injury in most organs except the brain, preserves tissue architecture
because denatured proteins resist enzymatic digestion. Liquefactive necrosis (A) occurs in brain or with pus-forming infections;
caseous necrosis (C) is associated with TB; fat necrosis (D) occurs in acute pancreatitis. NSG 530 emphasizes linking necrosis
patterns to underlying injury mechanisms.
Q4. A researcher is studying a cell line and notes characteristic chromatin condensation, cell shrinkage,
membrane blebbing, and formation of apoptotic bodies without an inflammatory response. This process is
primarily mediated by which enzyme family?
A. Caspases activated through intrinsic and extrinsic pathways *[CORRECT]*
B. Lysosomal hydrolases released during necrosis
C. Matrix metalloproteinases degrading basement membrane
D. Cyclin-dependent kinases driving cell cycle progression
Correct Answer: A
Rationale: Apoptosis is an energy-dependent, programmed cell death executed by caspases activated via intrinsic (mitochondrial
cytochrome c release) and extrinsic (death receptor) pathways. Unlike necrosis, apoptosis does not elicit inflammation.
Lysosomal hydrolases (B) mediate necrotic autolysis, MMPs (C) remodel extracellular matrix, and CDKs (D) drive cell division.
NSG 530 links apoptosis dysregulation to cancer and degenerative disease.
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Q5. A 47-year-old female develops jaundice following a transfusion reaction. Laboratory findings include
hemoglobinuria and elevated unconjugated bilirubin. The cellular injury mechanism most responsible is:
A. Hypoxic injury causing ATP depletion
B. Free radical–mediated lipid peroxidation of cell membranes *[CORRECT]*
C. Hypertonic stress causing cell shrinkage
D. Direct viral invasion of hepatocytes
Correct Answer: B
Rationale: Transfusion reactions generate free radicals and reactive oxygen species that cause lipid peroxidation of erythrocyte
membranes, leading to hemolysis and release of hemoglobin (hemoglobinuria). Hypoxic ATP depletion (A) is a separate
mechanism; hypertonic stress (C) causes crenation, not hemolysis; viral invasion (D) does not match the acute post-transfusion
timing. NSG 530 emphasizes free radical injury as a central mechanism in chemical/ischemic cell injury.
Q6. Which cellular adaptation is correctly paired with a physiologic (not pathologic) example?
A. Hyperplasia — endometrial proliferation after estrogen therapy
B. Hypertrophy — uterine smooth muscle enlargement during pregnancy *[CORRECT]*
C. Metaplasia — Barrett esophagus from chronic reflux
D. Dysplasia — atypical squamous cells of the cervix
Correct Answer: B
Rationale: Uterine smooth muscle hypertrophy during pregnancy is physiologic, driven by both hormonal stimulation and
mechanical stretch. Endometrial hyperplasia after estrogen therapy (A) is pathologic; Barrett esophagus (C) is pathologic
metaplasia; cervical dysplasia (D) is premalignant. NSG 530 requires distinguishing physiologic from pathologic adaptation,
especially in reproductive and hepatic contexts.
Q7. A 60-year-old with chronic ischemia develops increased intracellular sodium and calcium, mitochondrial
swelling, and blebbing of the plasma membrane. These changes are most consistent with which sequence?
A. Reversible injury progressing to irreversible injury with membrane failure *[CORRECT]*
B. Apoptosis with caspase activation and DNA fragmentation
C. Adaptive hypertrophy with upregulated protein synthesis
D. Metaplasia with cell type substitution
Correct Answer: A
Rationale: The findings—Na+/Ca2+ influx, mitochondrial swelling, membrane blebbing—represent the continuum of ischemic
cell injury that progresses from reversible to irreversible when membrane integrity fails. Apoptosis (B) is energy-dependent and
non-inflammatory; hypertrophy (C) and metaplasia (D) are adaptations, not injuries. NSG 530 stresses the ATP-depletion
cascade as central to ischemic injury mechanisms.
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Q8. A 42-year-old male with alcohol use disorder develops acute pancreatitis. Lab analysis reveals elevated
serum lipase and hypocalcemia. The hypocalcemia is best explained by:
A. Free fatty acids saponifying calcium in necrotic peripancreatic fat *[CORRECT]*
B. Increased parathyroid hormone secretion
C. Renal calcium wasting from acute tubular necrosis
D. Vitamin D deficiency from malabsorption
Correct Answer: A
Rationale: In acute pancreatitis, activated lipases hydrolyze peripancreatic fat into free fatty acids, which chelate calcium to
form insoluble soaps (saponification), causing characteristic hypocalcemia. PTH (B) would be appropriately elevated, not the
cause; ATN (C) and malabsorption (D) are slower mechanisms not typical of acute presentation. NSG 530 highlights fat necrosis
and its biochemical consequences.
Q9. A 35-year-old African American male presents with sudden onset of severe bone pain, jaundice, and fatigue
after a hike at high altitude. Peripheral smear shows sickled erythrocytes. The pathogenetic mechanism most
directly responsible for sickling is:
A. A point mutation causing glutamic acid-to-valine substitution in beta-globin *[CORRECT]*
B. Deficiency of glucose-6-phosphate dehydrogenase
C. Autoimmune hemolysis mediated by IgG antibodies
D. Iron deficiency impairing heme synthesis
Correct Answer: A
Rationale: Sickle cell disease results from a single nucleotide substitution in the beta-globin gene (HBB) replacing glutamic acid
with valine; under low-oxygen conditions, deoxygenated HbS polymerizes, distorting red cells into sickle shapes. G6PD
deficiency (B) causes episodic hemolysis, autoimmune hemolysis (C) is Coombs-positive, and iron deficiency (D) causes
microcytosis—not sickling. NSG 530 emphasizes linking genotype to cellular phenotype.
Q10. A 72-year-old presents with progressive dementia, rigid posture, and resting tremor. Brain autopsy reveals
Lewy bodies in the substantia nigra. These inclusions result primarily from misfolding of which protein?
A. Beta-amyloid in extracellular plaques
B. Alpha-synuclein forming intracellular aggregates *[CORRECT]*
C. Huntingtin polyglutamine repeats in striatal neurons
D. Tau hyperphosphorylation forming neurofibrillary tangles
Correct Answer: B
Rationale: Lewy bodies in Parkinson disease are intracytoplasmic inclusions composed primarily of misfolded alpha-synuclein.
Beta-amyloid (A) defines Alzheimer plaques; mutant huntingtin (C) causes Huntington disease; hyperphosphorylated tau (D)
forms Alzheimer neurofibrillary tangles. NSG 530 underscores protein-misfolding mechanisms in neurodegenerative
pathophysiology.
NSG530 / NSG 530 Exam 1 — Advanced Pathophysiology | Grade A | 100% Verified Page 4