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PATHOPHYSIOLOGY TEST BANK WITH VERIFIED ANSWERS
DETAILED RATIONALES GRADED A+
Pathophysiology Test Bank
SECTION 1: CELLULAR ADAPTATION, INJURY & DEATH (Questions 1–15)
Question 1. A 68-year-old patient with long-standing hypertension develops left ventricular wall
thickening without an increase in chamber size. Which cellular adaptive response does the
nurse practitioner recognize?
A) Hyperplasia of cardiac myocytes
B) Hypertrophy of cardiac myocytes
C) Metaplasia of cardiac tissue
D) Atrophy of the ventricular myocardium
Answer: B
Rationale: Chronic pressure overload from hypertension stimulates myocyte hypertrophy,
increasing cell size and wall thickness while chamber dimensions remain relatively stable.
Hyperplasia is limited in terminally differentiated cardiac myocytes.
Question 2. During a myocardial infarction, a zone of irreversibly injured myocytes exhibits
disrupted membrane integrity, mitochondrial swelling, and calcium influx. Which form of cell
death is primarily occurring?
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A) Apoptosis with orderly DNA fragmentation
B) Autophagy with lysosomal recycling of organelles
C) Necrosis with inflammatory sequelae
D) Senescence with permanent cell-cycle arrest
Answer: C
Rationale: Ischemic necrosis is characterized by loss of membrane integrity, organelle swelling,
and subsequent inflammation. Apoptosis is programmed and energy-dependent without early
membrane rupture.
Question 3. A patient with chronic GERD develops replacement of esophageal squamous
epithelium by columnar epithelium resembling intestinal mucosa. This adaptive change is best
classified as which process?
A) Metaplasia driven by chronic injury
B) Hyperplasia of residual squamous cells
C) Dysplasia with disordered maturation
D) Neoplastic transformation to adenocarcinoma
Answer: A
Rationale: Barrett esophagus exemplifies metaplasia, a reversible change in which one
differentiated cell type is replaced by another better suited to the altered environment.
Question 4. A pathologist examining a biopsy of cervical tissue notes that the cells appear
abnormal in size, shape, and organization but are confined to the epithelial surface. This finding
is most consistent with:
A) Metaplasia
B) Hyperplasia
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C) Dysplasia
D) Anaplasia
Answer: C
Rationale: Dysplasia refers to disorganized growth with abnormal cell morphology. It is
considered a preneoplastic condition and is graded from mild to severe.
Question 5. A patient with chronic kidney disease has a hemoglobin of 9.2 g/dL, low
reticulocyte count, and normal ferritin. Which mechanism most directly explains the anemia?
A) Decreased erythropoietin production
B) Iron-deficiency anemia
C) Vitamin B12 deficiency
D) Hemolysis
Answer: A
Rationale: In chronic kidney disease, decreased erythropoietin production by damaged
peritubular interstitial cells leads to normocytic, normochromic anemia.
Question 6. A 72-year-old female with end-stage ovarian cancer develops tumor lysis syndrome
after initial chemotherapy. Which mechanism best describes the primary mode of cell death
occurring in malignant cells exposed to cytotoxic chemotherapy?
A) Programmed cell death characterized by cytochrome c release
B) Oncosis driven by rapid ATP depletion and loss of plasma membrane integrity
C) Autophagic cell death from excessive lysosomal degradation
D) Pyroptosis mediated by inflammasome activation
Answer: B
Rationale: Cytotoxic chemotherapy primarily induces oncotic cell death through direct DNA
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damage and metabolic disruption, causing rapid ATP depletion, cell swelling, and plasma
membrane rupture.
Question 7. Which type of necrosis is most commonly associated with ischemic injury in the
heart and kidneys?
A) Coagulative necrosis
B) Liquefactive necrosis
C) Caseous necrosis
D) Fat necrosis
Answer: A
Rationale: Coagulative necrosis is characteristic of ischemic injury in the heart, kidneys, and
other solid organs, where tissue architecture remains temporarily preserved.
Question 8. A patient with a history of pancreatitis develops chalky-white deposits in the
peritoneum. This is an example of which type of necrosis?
A) Coagulative necrosis
B) Liquefactive necrosis
C) Fat necrosis
D) Fibrinoid necrosis
Answer: C
Rationale: Fat necrosis occurs when pancreatic enzymes leak and digest adipose tissue, forming
chalky-white deposits via saponification.
Question 9. Which cellular adaptation is characterized by the replacement of one mature cell
type by another, less mature cell type?
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PATHOPHYSIOLOGY TEST BANK WITH VERIFIED ANSWERS
DETAILED RATIONALES GRADED A+
Pathophysiology Test Bank
SECTION 1: CELLULAR ADAPTATION, INJURY & DEATH (Questions 1–15)
Question 1. A 68-year-old patient with long-standing hypertension develops left ventricular wall
thickening without an increase in chamber size. Which cellular adaptive response does the
nurse practitioner recognize?
A) Hyperplasia of cardiac myocytes
B) Hypertrophy of cardiac myocytes
C) Metaplasia of cardiac tissue
D) Atrophy of the ventricular myocardium
Answer: B
Rationale: Chronic pressure overload from hypertension stimulates myocyte hypertrophy,
increasing cell size and wall thickness while chamber dimensions remain relatively stable.
Hyperplasia is limited in terminally differentiated cardiac myocytes.
Question 2. During a myocardial infarction, a zone of irreversibly injured myocytes exhibits
disrupted membrane integrity, mitochondrial swelling, and calcium influx. Which form of cell
death is primarily occurring?
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,Page 2 of 60
A) Apoptosis with orderly DNA fragmentation
B) Autophagy with lysosomal recycling of organelles
C) Necrosis with inflammatory sequelae
D) Senescence with permanent cell-cycle arrest
Answer: C
Rationale: Ischemic necrosis is characterized by loss of membrane integrity, organelle swelling,
and subsequent inflammation. Apoptosis is programmed and energy-dependent without early
membrane rupture.
Question 3. A patient with chronic GERD develops replacement of esophageal squamous
epithelium by columnar epithelium resembling intestinal mucosa. This adaptive change is best
classified as which process?
A) Metaplasia driven by chronic injury
B) Hyperplasia of residual squamous cells
C) Dysplasia with disordered maturation
D) Neoplastic transformation to adenocarcinoma
Answer: A
Rationale: Barrett esophagus exemplifies metaplasia, a reversible change in which one
differentiated cell type is replaced by another better suited to the altered environment.
Question 4. A pathologist examining a biopsy of cervical tissue notes that the cells appear
abnormal in size, shape, and organization but are confined to the epithelial surface. This finding
is most consistent with:
A) Metaplasia
B) Hyperplasia
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C) Dysplasia
D) Anaplasia
Answer: C
Rationale: Dysplasia refers to disorganized growth with abnormal cell morphology. It is
considered a preneoplastic condition and is graded from mild to severe.
Question 5. A patient with chronic kidney disease has a hemoglobin of 9.2 g/dL, low
reticulocyte count, and normal ferritin. Which mechanism most directly explains the anemia?
A) Decreased erythropoietin production
B) Iron-deficiency anemia
C) Vitamin B12 deficiency
D) Hemolysis
Answer: A
Rationale: In chronic kidney disease, decreased erythropoietin production by damaged
peritubular interstitial cells leads to normocytic, normochromic anemia.
Question 6. A 72-year-old female with end-stage ovarian cancer develops tumor lysis syndrome
after initial chemotherapy. Which mechanism best describes the primary mode of cell death
occurring in malignant cells exposed to cytotoxic chemotherapy?
A) Programmed cell death characterized by cytochrome c release
B) Oncosis driven by rapid ATP depletion and loss of plasma membrane integrity
C) Autophagic cell death from excessive lysosomal degradation
D) Pyroptosis mediated by inflammasome activation
Answer: B
Rationale: Cytotoxic chemotherapy primarily induces oncotic cell death through direct DNA
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damage and metabolic disruption, causing rapid ATP depletion, cell swelling, and plasma
membrane rupture.
Question 7. Which type of necrosis is most commonly associated with ischemic injury in the
heart and kidneys?
A) Coagulative necrosis
B) Liquefactive necrosis
C) Caseous necrosis
D) Fat necrosis
Answer: A
Rationale: Coagulative necrosis is characteristic of ischemic injury in the heart, kidneys, and
other solid organs, where tissue architecture remains temporarily preserved.
Question 8. A patient with a history of pancreatitis develops chalky-white deposits in the
peritoneum. This is an example of which type of necrosis?
A) Coagulative necrosis
B) Liquefactive necrosis
C) Fat necrosis
D) Fibrinoid necrosis
Answer: C
Rationale: Fat necrosis occurs when pancreatic enzymes leak and digest adipose tissue, forming
chalky-white deposits via saponification.
Question 9. Which cellular adaptation is characterized by the replacement of one mature cell
type by another, less mature cell type?
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