NURS 6501 ADVANCED PATHOPHYSIOLOGY MIDTERM
PRACTICE EXAM – 100 GRADUATE-LEVEL CLINICAL
MULTIPLE-CHOICE QUESTIONS WITH ANSWER KEY &
DETAILED RATIONALES
Section I: Question Bank
Questions 1-100. Select the single best answer for each clinical vignette.
Question 1
A 62-year-old man with a 15-year history of poorly controlled hypertension undergoes echocardiography.
The left ventricular wall is markedly thickened, but the number of cardiac myocytes has not increased. A full
guide with final exam bank and exam tips at hhhwmunyes . gumroad . com. Type it manually. Which cellular
adaptation best explains this finding?
A. Hypertrophy caused by increased synthesis of structural proteins in existing myocytes
B. Hyperplasia caused by mitotic proliferation of mature cardiac myocytes
C. Metaplasia caused by replacement of cardiac myocytes with pressure-resistant cells
D. Dysplasia caused by disordered myocardial growth in response to chronic pressure overload
Question 2
A 49-year-old woman with a 30-pack-year smoking history has persistent cough. Bronchial biopsy
shows replacement of normal ciliated columnar epithelium by stratified squamous epithelium
without invasion. Which process is most likely occurring?
A. Dysplasia, an irreversible malignant transformation of epithelial cells
B. Metaplasia, a reversible change from one mature cell type to another
C. Hyperplasia, an increase in the number of ciliated columnar cells
D. Hypertrophy, an increase in the size of individual bronchial epithelial cells
Question 3
A 45-year-old man undergoes surgical resection of 60% of his liver for a localized benign tumor. Over
the next several weeks, imaging demonstrates substantial restoration of liver mass. Which
mechanism most directly accounts for this adaptation?
A. Hypertrophy of hepatocytes without entry into the cell cycle
B. Metaplastic conversion of biliary epithelial cells into hepatocytes
C. Compensatory hyperplasia of residual hepatocytes stimulated by growth signals
D. Dysplastic proliferation of hepatocytes with loss of normal architecture
Question 4
A 71-year-old woman experiences transient severe hypotension during surgery. Renal tubular
epithelial cells become swollen, and intracellular ATP levels fall, but perfusion is rapidly restored and
the cells recover. Which early event most directly caused the cellular swelling?
A. Activation of caspases with controlled fragmentation of nuclear DNA
B. Failure of ATP-dependent sodium-potassium pumps with intracellular sodium and water
accumulation
C. Irreversible rupture of lysosomal membranes with widespread enzymatic digestion
Page 1
, D. Massive calcium deposition within mitochondria due to dystrophic calcification
Question 5
A 58-year-old man presents 12 hours after an occlusive myocardial infarction. Histology of the
infarcted myocardium shows loss of plasma membrane integrity, leakage of intracellular enzymes,
and an intense inflammatory response. Which form of cell death is most consistent with these
findings?
A. Apoptosis, because dying cells are rapidly removed without membrane leakage
B. Autophagy, because damaged organelles are selectively degraded to preserve cell survival
C. Senescence, because cells permanently withdraw from the cell cycle without dying
D. Necrosis, because membrane disruption releases intracellular contents and triggers inflammation
Question 6
A researcher cultures fibroblasts from an 82-year-old adult. Compared with fibroblasts from a young
adult, the cells have markedly shortened telomeres and stop dividing despite adequate nutrients and growth
factors. Which aging mechanism is best illustrated?
A. Replicative senescence caused by progressive telomere shortening
B. Coagulative necrosis caused by chronic low-grade ischemia
C. Pathologic hyperplasia caused by prolonged growth-factor exposure
D. Metaplastic reprogramming caused by oxidative stress
Question 7
A 29-year-old woman has familial hypertrophic cardiomyopathy caused by a pathogenic autosomal
dominant mutation. She is heterozygous for the variant, and her partner does not carry it. What is
the probability that each child will inherit the pathogenic allele?
A. 25%
B. 50%
C. 75%
D. 100%
Question 8
A newborn has a severe metabolic disorder. Genetic sequencing identifies a single-base substitution
that converts a codon for glutamine into a premature termination codon, producing a truncated
nonfunctional enzyme. What type of mutation is this?
A. Missense mutation
B. Silent mutation
C. Nonsense mutation
D. Frameshift mutation
Question 9
A 52-year-old woman develops colon cancer. Tumor analysis shows that the coding sequence of
a tumor-suppressor gene is intact, but its promoter region is heavily methylated and the gene is
Page 2
,transcriptionally silenced. Which mechanism best explains this finding?
A. Epigenetic gene silencing without alteration of the underlying DNA sequence
B. Chromosomal nondisjunction causing aneuploidy
C. A gain-of-function point mutation creating a constitutively active oncogene
D. Meiotic recombination producing a new allele in somatic tumor cells
Question 10
A 34-year-old man presents with acute bacterial cellulitis of the lower leg. The affected area is warm,
erythematous, swollen, and tender. A tissue sample obtained early in the process shows a
predominant leukocyte population. Which cell type is most likely to predominate during this early
acute inflammatory response?
A. Neutrophils
B. Plasma cells
C. Eosinophils
D. Fibroblasts
Question 11
A 23-year-old woman develops wheezing, urticaria, and hypotension within minutes of eating a dessert
containing peanuts. Which immunologic mechanism most directly produced her acute symptoms?
A. IgG antibodies binding to basement membrane antigens and activating complement
B. Circulating antigen-antibody complexes depositing in small vessels
C. Sensitized T lymphocytes releasing cytokines after delayed antigen recognition
D. Allergen cross-linking of IgE bound to mast cells, causing rapid mediator release
Question 12
A 36-year-old man presents with hemoptysis and rapidly progressive kidney failure. Testing detects
autoantibodies directed against the alpha-3 chain of type IV collagen in glomerular and alveolar
basement membranes. Which hypersensitivity mechanism is responsible?
A. Type I: IgE-mediated mast-cell degranulation
B. Type II: antibody-mediated injury against fixed tissue antigens
C. Type III: deposition of circulating immune complexes
D. Type IV: delayed T-cell-mediated cytotoxicity
Question 13
A 28-year-old woman with systemic lupus erythematosus develops proteinuria, hematuria, and reduced
complement levels. Kidney biopsy demonstrates granular deposits of immunoglobulin and complement
along glomerular structures. Which mechanism best explains the renal injury?
A. Direct IgE-mediated activation of mast cells within glomeruli
B. Cytotoxic T-cell destruction of glomerular epithelial cells
C. Deposition of circulating immune complexes with complement activation
D. Autoantibodies binding exclusively to a fixed glomerular basement-membrane antigen
Page 3
, Question 14
A 41-year-old nurse develops an intensely pruritic, erythematous rash 48 hours after using an
adhesive dressing containing a sensitizing chemical. The reaction is localized to the area of contact.
Which mechanism is most likely?
A. Preformed IgE on mast cells causing an immediate reaction
B. IgM-mediated complement activation against epidermal cells
C. Immune-complex deposition within dermal venules
D. Sensitized T lymphocytes producing a delayed inflammatory response
Question 15
A 39-year-old man with untreated HIV infection has a CD4+ T-cell count of 110 cells/mm3 and
recurrent opportunistic infections. Which pathophysiologic process most directly accounts for his
progressive immunodeficiency?
A. Selective depletion and dysfunction of CD4+ T lymphocytes through viral infection and chronic
immune activation
B. Excessive production of functional neutrophils that suppress B-cell maturation
C. Destruction of erythrocytes by HIV-specific antibodies, causing impaired oxygen delivery to lymphoid
tissue
D. Inhibition of complement synthesis in the liver as the primary effect of viral replication
Question 16
A 55-year-old woman is diagnosed with an aggressive breast carcinoma. Molecular testing shows loss
of function of both copies of a gene that normally halts the cell cycle after DNA damage and promotes
apoptosis when damage is irreparable. Which type of gene has most likely been inactivated?
A. Proto-oncogene that normally stimulates controlled cell proliferation
B. Tumor-suppressor gene that normally restrains proliferation and preserves genomic integrity
Page 4
PRACTICE EXAM – 100 GRADUATE-LEVEL CLINICAL
MULTIPLE-CHOICE QUESTIONS WITH ANSWER KEY &
DETAILED RATIONALES
Section I: Question Bank
Questions 1-100. Select the single best answer for each clinical vignette.
Question 1
A 62-year-old man with a 15-year history of poorly controlled hypertension undergoes echocardiography.
The left ventricular wall is markedly thickened, but the number of cardiac myocytes has not increased. A full
guide with final exam bank and exam tips at hhhwmunyes . gumroad . com. Type it manually. Which cellular
adaptation best explains this finding?
A. Hypertrophy caused by increased synthesis of structural proteins in existing myocytes
B. Hyperplasia caused by mitotic proliferation of mature cardiac myocytes
C. Metaplasia caused by replacement of cardiac myocytes with pressure-resistant cells
D. Dysplasia caused by disordered myocardial growth in response to chronic pressure overload
Question 2
A 49-year-old woman with a 30-pack-year smoking history has persistent cough. Bronchial biopsy
shows replacement of normal ciliated columnar epithelium by stratified squamous epithelium
without invasion. Which process is most likely occurring?
A. Dysplasia, an irreversible malignant transformation of epithelial cells
B. Metaplasia, a reversible change from one mature cell type to another
C. Hyperplasia, an increase in the number of ciliated columnar cells
D. Hypertrophy, an increase in the size of individual bronchial epithelial cells
Question 3
A 45-year-old man undergoes surgical resection of 60% of his liver for a localized benign tumor. Over
the next several weeks, imaging demonstrates substantial restoration of liver mass. Which
mechanism most directly accounts for this adaptation?
A. Hypertrophy of hepatocytes without entry into the cell cycle
B. Metaplastic conversion of biliary epithelial cells into hepatocytes
C. Compensatory hyperplasia of residual hepatocytes stimulated by growth signals
D. Dysplastic proliferation of hepatocytes with loss of normal architecture
Question 4
A 71-year-old woman experiences transient severe hypotension during surgery. Renal tubular
epithelial cells become swollen, and intracellular ATP levels fall, but perfusion is rapidly restored and
the cells recover. Which early event most directly caused the cellular swelling?
A. Activation of caspases with controlled fragmentation of nuclear DNA
B. Failure of ATP-dependent sodium-potassium pumps with intracellular sodium and water
accumulation
C. Irreversible rupture of lysosomal membranes with widespread enzymatic digestion
Page 1
, D. Massive calcium deposition within mitochondria due to dystrophic calcification
Question 5
A 58-year-old man presents 12 hours after an occlusive myocardial infarction. Histology of the
infarcted myocardium shows loss of plasma membrane integrity, leakage of intracellular enzymes,
and an intense inflammatory response. Which form of cell death is most consistent with these
findings?
A. Apoptosis, because dying cells are rapidly removed without membrane leakage
B. Autophagy, because damaged organelles are selectively degraded to preserve cell survival
C. Senescence, because cells permanently withdraw from the cell cycle without dying
D. Necrosis, because membrane disruption releases intracellular contents and triggers inflammation
Question 6
A researcher cultures fibroblasts from an 82-year-old adult. Compared with fibroblasts from a young
adult, the cells have markedly shortened telomeres and stop dividing despite adequate nutrients and growth
factors. Which aging mechanism is best illustrated?
A. Replicative senescence caused by progressive telomere shortening
B. Coagulative necrosis caused by chronic low-grade ischemia
C. Pathologic hyperplasia caused by prolonged growth-factor exposure
D. Metaplastic reprogramming caused by oxidative stress
Question 7
A 29-year-old woman has familial hypertrophic cardiomyopathy caused by a pathogenic autosomal
dominant mutation. She is heterozygous for the variant, and her partner does not carry it. What is
the probability that each child will inherit the pathogenic allele?
A. 25%
B. 50%
C. 75%
D. 100%
Question 8
A newborn has a severe metabolic disorder. Genetic sequencing identifies a single-base substitution
that converts a codon for glutamine into a premature termination codon, producing a truncated
nonfunctional enzyme. What type of mutation is this?
A. Missense mutation
B. Silent mutation
C. Nonsense mutation
D. Frameshift mutation
Question 9
A 52-year-old woman develops colon cancer. Tumor analysis shows that the coding sequence of
a tumor-suppressor gene is intact, but its promoter region is heavily methylated and the gene is
Page 2
,transcriptionally silenced. Which mechanism best explains this finding?
A. Epigenetic gene silencing without alteration of the underlying DNA sequence
B. Chromosomal nondisjunction causing aneuploidy
C. A gain-of-function point mutation creating a constitutively active oncogene
D. Meiotic recombination producing a new allele in somatic tumor cells
Question 10
A 34-year-old man presents with acute bacterial cellulitis of the lower leg. The affected area is warm,
erythematous, swollen, and tender. A tissue sample obtained early in the process shows a
predominant leukocyte population. Which cell type is most likely to predominate during this early
acute inflammatory response?
A. Neutrophils
B. Plasma cells
C. Eosinophils
D. Fibroblasts
Question 11
A 23-year-old woman develops wheezing, urticaria, and hypotension within minutes of eating a dessert
containing peanuts. Which immunologic mechanism most directly produced her acute symptoms?
A. IgG antibodies binding to basement membrane antigens and activating complement
B. Circulating antigen-antibody complexes depositing in small vessels
C. Sensitized T lymphocytes releasing cytokines after delayed antigen recognition
D. Allergen cross-linking of IgE bound to mast cells, causing rapid mediator release
Question 12
A 36-year-old man presents with hemoptysis and rapidly progressive kidney failure. Testing detects
autoantibodies directed against the alpha-3 chain of type IV collagen in glomerular and alveolar
basement membranes. Which hypersensitivity mechanism is responsible?
A. Type I: IgE-mediated mast-cell degranulation
B. Type II: antibody-mediated injury against fixed tissue antigens
C. Type III: deposition of circulating immune complexes
D. Type IV: delayed T-cell-mediated cytotoxicity
Question 13
A 28-year-old woman with systemic lupus erythematosus develops proteinuria, hematuria, and reduced
complement levels. Kidney biopsy demonstrates granular deposits of immunoglobulin and complement
along glomerular structures. Which mechanism best explains the renal injury?
A. Direct IgE-mediated activation of mast cells within glomeruli
B. Cytotoxic T-cell destruction of glomerular epithelial cells
C. Deposition of circulating immune complexes with complement activation
D. Autoantibodies binding exclusively to a fixed glomerular basement-membrane antigen
Page 3
, Question 14
A 41-year-old nurse develops an intensely pruritic, erythematous rash 48 hours after using an
adhesive dressing containing a sensitizing chemical. The reaction is localized to the area of contact.
Which mechanism is most likely?
A. Preformed IgE on mast cells causing an immediate reaction
B. IgM-mediated complement activation against epidermal cells
C. Immune-complex deposition within dermal venules
D. Sensitized T lymphocytes producing a delayed inflammatory response
Question 15
A 39-year-old man with untreated HIV infection has a CD4+ T-cell count of 110 cells/mm3 and
recurrent opportunistic infections. Which pathophysiologic process most directly accounts for his
progressive immunodeficiency?
A. Selective depletion and dysfunction of CD4+ T lymphocytes through viral infection and chronic
immune activation
B. Excessive production of functional neutrophils that suppress B-cell maturation
C. Destruction of erythrocytes by HIV-specific antibodies, causing impaired oxygen delivery to lymphoid
tissue
D. Inhibition of complement synthesis in the liver as the primary effect of viral replication
Question 16
A 55-year-old woman is diagnosed with an aggressive breast carcinoma. Molecular testing shows loss
of function of both copies of a gene that normally halts the cell cycle after DNA damage and promotes
apoptosis when damage is irreparable. Which type of gene has most likely been inactivated?
A. Proto-oncogene that normally stimulates controlled cell proliferation
B. Tumor-suppressor gene that normally restrains proliferation and preserves genomic integrity
Page 4
