Pathophysiology Final Exam
2026/2027||Questions And Answers
With Rationales/Graded A+/2026
Update/100% Correct /Instant
Download
NCLEX-Style Questions for Student School Test
Instructions: Choose the best answer. Correct answers are highlighted in bold.
Rationales are provided.
Section 1: Cellular Adaptation & Injury (Questions 1–20)
1. A patient with chronic anemia develops an enlarged heart. This is an
example of which cellular adaptation?
a) Hyperplasia
b) Metaplasia
c) Hypertrophy
d) Dysplasia
Rationale: Hypertrophy is an increase in cell size due to increased workload (e.g.,
chronic anemia → heart works harder).
2. A chronic smoker has ciliated pseudostratified columnar epithelium
replaced by stratified squamous epithelium in the bronchi. This is:
a) Dysplasia
b) Metaplasia
c) Anaplasia
d) Neoplasia
Rationale: Metaplasia is reversible replacement of one differentiated cell type with
another (smoking → squamous metaplasia).
3. Which cellular change is most characteristic of irreversible cell injury?
a) Swelling of mitochondria
b) Nuclear pyknosis, karyorrhexis, karyolysis
,c) Loss of microvilli
d) Ribosomal detachment
Rationale: Nuclear changes (pyknosis, karyorrhexis, karyolysis) indicate
irreversible injury and cell death.
4. A patient with a myocardial infarction has elevated troponin I. This reflects:
a) Apoptosis
b) Necrosis
c) Metaplasia
d) Atrophy
Rationale: Troponin leaks from necrotic cardiac myocytes; necrosis is
pathological cell death.
5. Which finding indicates apoptosis rather than necrosis?
a) Inflammation
b) Cell swelling
c) Formation of apoptotic bodies
d) ATP depletion
Rationale: Apoptosis is programmed cell death with apoptotic bodies and no
inflammation.
6. Lead poisoning causes anemia by interfering with:
a) DNA synthesis
b) Heme synthesis
c) Globin chain production
d) Iron absorption
Rationale: Lead inhibits ALA dehydratase and ferrochelatase → impaired heme
synthesis.
7. Free radical injury is implicated in reperfusion injury. An endogenous
antioxidant is:
a) Vitamin E
b) Glutathione
c) Ascorbic acid
d) Beta-carotene
Rationale: Glutathione is a major intracellular antioxidant produced by the body.
8. Atrophy of a limb after cast removal is due to:
a) Denervation
b) Disuse
,c) Ischemia
d) Malnutrition
Rationale: Disuse atrophy from lack of mechanical load.
9. Caseous necrosis is classically seen in:
a) Ischemic heart
b) Tuberculosis
c) Acute pancreatitis
d) Brain infarction
Rationale: Caseous necrosis (cheese-like) is characteristic of TB.
10. Fat necrosis most commonly occurs in:
a) Myocardium
b) Pancreas
c) Kidney
d) Liver
Rationale: Acute pancreatitis releases lipases that digest fat → saponification.
11. Liquefactive necrosis of the brain results from:
a) Ischemic stroke
b) Bacterial infection
c) Viral encephalitis
d) Trauma
Rationale: Brain necrosis liquefies due to abundant lysosomal enzymes and lack
of connective tissue.
12. Gangrene of a diabetic foot with dry, black skin is termed:
a) Wet gangrene
b) Gas gangrene
c) Dry gangrene
d) Fournier’s gangrene
Rationale: Dry gangrene = coagulative necrosis without infection, often in
diabetics/PVD.
13. Pathologic calcification of damaged aortic valves is called:
a) Metastatic calcification
b) Dystrophic calcification
c) Calciphylaxis
d) Ossification
, Rationale: Dystrophic calcification occurs in dead/damaged tissue with normal
calcium levels.
14. Which organ is most susceptible to hypoxic injury due to its high
metabolic rate?
a) Liver
b) Brain
c) Skeletal muscle
d) Bone
Rationale: Brain consumes 20% of O2; neurons die within 4–6 minutes of anoxia.
15. A patient with carbon monoxide poisoning has cherry-red skin due to:
a) Cyanide binding
b) Carboxyhemoglobin
c) Methemoglobin
d) Sulfhemoglobin
Rationale: CO binds Hb with 200x affinity for O2 → carboxyhemoglobin →
cherry-red color.
16. Ethanol-induced liver injury primarily involves which organelle?
a) Nucleus
b) Smooth ER
c) Golgi
d) Lysosomes
Rationale: Ethanol induces smooth ER proliferation (detoxification) → tolerance,
then damage.
17. Which is an example of physiologic hyperplasia?
a) Benign prostatic hyperplasia
b) Uterine enlargement during pregnancy
c) Psoriasis
d) Endometrial hyperplasia
Rationale: Hormone-induced (estrogen) uterine hyperplasia is normal during
pregnancy.
18. Cellular swelling (“hydropic change”) is due to failure of:
a) Na+/K+ ATPase pump
b) Calcium channels
c) Glucose transporters
d) DNA repair
2026/2027||Questions And Answers
With Rationales/Graded A+/2026
Update/100% Correct /Instant
Download
NCLEX-Style Questions for Student School Test
Instructions: Choose the best answer. Correct answers are highlighted in bold.
Rationales are provided.
Section 1: Cellular Adaptation & Injury (Questions 1–20)
1. A patient with chronic anemia develops an enlarged heart. This is an
example of which cellular adaptation?
a) Hyperplasia
b) Metaplasia
c) Hypertrophy
d) Dysplasia
Rationale: Hypertrophy is an increase in cell size due to increased workload (e.g.,
chronic anemia → heart works harder).
2. A chronic smoker has ciliated pseudostratified columnar epithelium
replaced by stratified squamous epithelium in the bronchi. This is:
a) Dysplasia
b) Metaplasia
c) Anaplasia
d) Neoplasia
Rationale: Metaplasia is reversible replacement of one differentiated cell type with
another (smoking → squamous metaplasia).
3. Which cellular change is most characteristic of irreversible cell injury?
a) Swelling of mitochondria
b) Nuclear pyknosis, karyorrhexis, karyolysis
,c) Loss of microvilli
d) Ribosomal detachment
Rationale: Nuclear changes (pyknosis, karyorrhexis, karyolysis) indicate
irreversible injury and cell death.
4. A patient with a myocardial infarction has elevated troponin I. This reflects:
a) Apoptosis
b) Necrosis
c) Metaplasia
d) Atrophy
Rationale: Troponin leaks from necrotic cardiac myocytes; necrosis is
pathological cell death.
5. Which finding indicates apoptosis rather than necrosis?
a) Inflammation
b) Cell swelling
c) Formation of apoptotic bodies
d) ATP depletion
Rationale: Apoptosis is programmed cell death with apoptotic bodies and no
inflammation.
6. Lead poisoning causes anemia by interfering with:
a) DNA synthesis
b) Heme synthesis
c) Globin chain production
d) Iron absorption
Rationale: Lead inhibits ALA dehydratase and ferrochelatase → impaired heme
synthesis.
7. Free radical injury is implicated in reperfusion injury. An endogenous
antioxidant is:
a) Vitamin E
b) Glutathione
c) Ascorbic acid
d) Beta-carotene
Rationale: Glutathione is a major intracellular antioxidant produced by the body.
8. Atrophy of a limb after cast removal is due to:
a) Denervation
b) Disuse
,c) Ischemia
d) Malnutrition
Rationale: Disuse atrophy from lack of mechanical load.
9. Caseous necrosis is classically seen in:
a) Ischemic heart
b) Tuberculosis
c) Acute pancreatitis
d) Brain infarction
Rationale: Caseous necrosis (cheese-like) is characteristic of TB.
10. Fat necrosis most commonly occurs in:
a) Myocardium
b) Pancreas
c) Kidney
d) Liver
Rationale: Acute pancreatitis releases lipases that digest fat → saponification.
11. Liquefactive necrosis of the brain results from:
a) Ischemic stroke
b) Bacterial infection
c) Viral encephalitis
d) Trauma
Rationale: Brain necrosis liquefies due to abundant lysosomal enzymes and lack
of connective tissue.
12. Gangrene of a diabetic foot with dry, black skin is termed:
a) Wet gangrene
b) Gas gangrene
c) Dry gangrene
d) Fournier’s gangrene
Rationale: Dry gangrene = coagulative necrosis without infection, often in
diabetics/PVD.
13. Pathologic calcification of damaged aortic valves is called:
a) Metastatic calcification
b) Dystrophic calcification
c) Calciphylaxis
d) Ossification
, Rationale: Dystrophic calcification occurs in dead/damaged tissue with normal
calcium levels.
14. Which organ is most susceptible to hypoxic injury due to its high
metabolic rate?
a) Liver
b) Brain
c) Skeletal muscle
d) Bone
Rationale: Brain consumes 20% of O2; neurons die within 4–6 minutes of anoxia.
15. A patient with carbon monoxide poisoning has cherry-red skin due to:
a) Cyanide binding
b) Carboxyhemoglobin
c) Methemoglobin
d) Sulfhemoglobin
Rationale: CO binds Hb with 200x affinity for O2 → carboxyhemoglobin →
cherry-red color.
16. Ethanol-induced liver injury primarily involves which organelle?
a) Nucleus
b) Smooth ER
c) Golgi
d) Lysosomes
Rationale: Ethanol induces smooth ER proliferation (detoxification) → tolerance,
then damage.
17. Which is an example of physiologic hyperplasia?
a) Benign prostatic hyperplasia
b) Uterine enlargement during pregnancy
c) Psoriasis
d) Endometrial hyperplasia
Rationale: Hormone-induced (estrogen) uterine hyperplasia is normal during
pregnancy.
18. Cellular swelling (“hydropic change”) is due to failure of:
a) Na+/K+ ATPase pump
b) Calcium channels
c) Glucose transporters
d) DNA repair
