NURS 611 ADVANCED PATHOPHYSIOLOGY FINAL EXAM
2026/2027 QUESTIONS AND CORRECT DETAILED
ANSWERS
Original practice questions modeled on recurring advanced-pathophysiology exam concepts; they are not represented as
leaked or verified copies of a live exam.
1. A patient develops reversible cellular injury after transient hypoxia. Which change is most characteristic?
A. A. Nuclear fragmentation
B. B. Cellular swelling from impaired ion pumps
C. C. Membrane rupture
D. D. Extensive lysosomal autodigestion
Correct Answer: B
Detailed Rationale: ATP depletion impairs the sodium-potassium pump, causing sodium and water to accumulate
intracellularly. Nuclear fragmentation and membrane rupture indicate more severe, irreversible injury.
2. A patient with chronic hypertension develops thickening of the left ventricular wall. Which cellular adaptation
best explains this finding?
A. A. Atrophy
B. B. Hyperplasia
C. C. Hypertrophy
D. D. Metaplasia
Correct Answer: C
Detailed Rationale: Cardiac myocytes have limited proliferative capacity, so chronic pressure overload primarily increases
cell size, producing hypertrophy.
3. Which mediator is most strongly associated with rapid vasodilation and increased vascular permeability during
acute inflammation?
A. A. Histamine
B. B. Albumin
C. C. Hemoglobin
D. D. Insulin
Correct Answer: A
Detailed Rationale: Histamine is rapidly released from mast cells and produces arteriolar vasodilation and increased
venular permeability.
4. Which hypersensitivity reaction is caused by immune-complex deposition in tissues?
A. A. Type I
B. B. Type II
C. C. Type III
D. D. Type IV
,Correct Answer: C
Detailed Rationale: Type III hypersensitivity results from circulating antigen-antibody complexes depositing in tissues and
activating complement and inflammation.
5. A child has a single-gene disorder caused by a pathogenic variant inherited from one affected parent. Which
inheritance pattern is most consistent?
A. A. Autosomal dominant
B. B. Mitochondrial recessive
C. C. X-linked recessive only
D. D. Multifactorial
Correct Answer: A
Detailed Rationale: Autosomal-dominant disorders can manifest when a pathogenic variant is present on one allele, with
an affected heterozygous parent potentially transmitting it to offspring.
6. Cushing disease is specifically caused by which mechanism?
A. A. Adrenal cortisol-producing tumor
B. B. Ectopic cortisol secretion
C. C. Pituitary ACTH-secreting adenoma
D. D. Exogenous glucocorticoid use
Correct Answer: C
Detailed Rationale: Cushing disease refers specifically to pituitary ACTH excess. Cushing syndrome is the broader term
for hypercortisolism from any cause.
7. A patient has exertional chest pain that predictably resolves with rest and has no troponin elevation. Which
process is most likely?
A. A. Stable angina from fixed coronary obstruction
B. B. Acute myocardial infarction
C. C. Myocarditis
D. D. Pericardial tamponade
Correct Answer: A
Detailed Rationale: Stable angina reflects a supply-demand mismatch caused by a fixed coronary lesion. Rest reduces
myocardial oxygen demand, relieving symptoms without myocardial necrosis.
8. Which mechanism best explains pulmonary crackles in left-sided heart failure?
A. A. Reduced systemic venous pressure
B. B. Increased pulmonary capillary hydrostatic pressure
C. C. Increased lymphatic drainage
D. D. Reduced pulmonary blood flow
Correct Answer: B
Detailed Rationale: Left ventricular dysfunction increases pressure upstream in the pulmonary circulation. Elevated
pulmonary capillary hydrostatic pressure drives fluid into the interstitium and alveoli.
9. Renin release is most directly stimulated by which change?
, A. A. Increased renal perfusion
B. B. Decreased renal perfusion pressure
C. C. Increased distal sodium delivery
D. D. Increased atrial natriuretic peptide
Correct Answer: B
Detailed Rationale: Reduced renal perfusion is sensed by the juxtaglomerular apparatus and stimulates renin release,
initiating the RAAS cascade.
10. A patient with emphysema has alpha-1 antitrypsin deficiency. What is the normal role of alpha-1 antitrypsin?
A. A. Stimulates bronchoconstriction
B. B. Inhibits neutrophil elastase
C. C. Increases alveolar surface tension
D. D. Activates histamine release
Correct Answer: B
Detailed Rationale: Alpha-1 antitrypsin inhibits proteases such as neutrophil elastase. Deficiency permits excessive
elastin degradation and contributes to emphysema.
11. During the early phase of an allergic asthma attack, which mediator contributes to rapid bronchoconstriction?
A. A. Histamine
B. B. Albumin
C. C. Erythropoietin
D. D. Insulin
Correct Answer: A
Detailed Rationale: Mast-cell degranulation releases histamine rapidly during immediate hypersensitivity, contributing to
bronchoconstriction and vascular permeability.
12. A patient with sickle cell disease has a beta-globin mutation replacing glutamic acid with which amino acid?
A. A. Valine
B. B. Glycine
C. C. Lysine
D. D. Methionine
Correct Answer: A
Detailed Rationale: The classic HbS mutation substitutes valine for glutamic acid at position 6 of the beta-globin chain,
promoting hemoglobin polymerization under low-oxygen conditions.
13. Which finding best distinguishes Crohn disease from ulcerative colitis?
A. A. Continuous rectal involvement
B. B. Transmural inflammation with skip lesions
C. C. Disease limited to mucosa
D. D. Absence of fistulas
Correct Answer: B
, Detailed Rationale: Crohn disease can affect any part of the gastrointestinal tract and characteristically produces
transmural inflammation and skip lesions.
14. What is the defining pathologic feature of amyotrophic lateral sclerosis?
A. A. Loss of dopamine neurons only
B. B. Degeneration of upper and lower motor neurons
C. C. Amyloid plaques as the primary lesion
D. D. Peripheral demyelination only
Correct Answer: B
Detailed Rationale: ALS involves progressive degeneration of motor neurons in the brain and spinal cord, producing
combined upper- and lower-motor-neuron findings.
15. Which term describes malignant cells that have lost differentiation and resemble neither their tissue of origin
nor normal mature cells?
A. A. Hyperplasia
B. B. Anaplasia
C. C. Hypertrophy
D. D. Metaplasia
Correct Answer: B
Detailed Rationale: Anaplasia means lack of differentiation and is a characteristic of aggressive malignant neoplasms.
16. A patient with septic shock develops profound systemic vasodilation. Which mediator plays a major role?
A. A. Nitric oxide
B. B. Angiotensin II
C. C. Endothelin-1
D. D. Erythropoietin
Correct Answer: A
Detailed Rationale: Inflammatory signaling in sepsis induces nitric oxide production, contributing to widespread
vasodilation and reduced systemic vascular resistance.
17. A patient has pH 7.28, PaCO2 55 mmHg, and HCO3− 24 mEq/L. Which primary disorder is present?
A. A. Metabolic alkalosis
B. B. Respiratory acidosis
C. C. Metabolic acidosis
D. D. Respiratory alkalosis
Correct Answer: B
Detailed Rationale: The pH is acidemic and PaCO2 is elevated while bicarbonate is not substantially increased, indicating
primary respiratory acidosis.
18. Which laboratory pattern is most consistent with primary hypothyroidism?
A. A. Low TSH and high free T4
B. B. High TSH and low free T4
2026/2027 QUESTIONS AND CORRECT DETAILED
ANSWERS
Original practice questions modeled on recurring advanced-pathophysiology exam concepts; they are not represented as
leaked or verified copies of a live exam.
1. A patient develops reversible cellular injury after transient hypoxia. Which change is most characteristic?
A. A. Nuclear fragmentation
B. B. Cellular swelling from impaired ion pumps
C. C. Membrane rupture
D. D. Extensive lysosomal autodigestion
Correct Answer: B
Detailed Rationale: ATP depletion impairs the sodium-potassium pump, causing sodium and water to accumulate
intracellularly. Nuclear fragmentation and membrane rupture indicate more severe, irreversible injury.
2. A patient with chronic hypertension develops thickening of the left ventricular wall. Which cellular adaptation
best explains this finding?
A. A. Atrophy
B. B. Hyperplasia
C. C. Hypertrophy
D. D. Metaplasia
Correct Answer: C
Detailed Rationale: Cardiac myocytes have limited proliferative capacity, so chronic pressure overload primarily increases
cell size, producing hypertrophy.
3. Which mediator is most strongly associated with rapid vasodilation and increased vascular permeability during
acute inflammation?
A. A. Histamine
B. B. Albumin
C. C. Hemoglobin
D. D. Insulin
Correct Answer: A
Detailed Rationale: Histamine is rapidly released from mast cells and produces arteriolar vasodilation and increased
venular permeability.
4. Which hypersensitivity reaction is caused by immune-complex deposition in tissues?
A. A. Type I
B. B. Type II
C. C. Type III
D. D. Type IV
,Correct Answer: C
Detailed Rationale: Type III hypersensitivity results from circulating antigen-antibody complexes depositing in tissues and
activating complement and inflammation.
5. A child has a single-gene disorder caused by a pathogenic variant inherited from one affected parent. Which
inheritance pattern is most consistent?
A. A. Autosomal dominant
B. B. Mitochondrial recessive
C. C. X-linked recessive only
D. D. Multifactorial
Correct Answer: A
Detailed Rationale: Autosomal-dominant disorders can manifest when a pathogenic variant is present on one allele, with
an affected heterozygous parent potentially transmitting it to offspring.
6. Cushing disease is specifically caused by which mechanism?
A. A. Adrenal cortisol-producing tumor
B. B. Ectopic cortisol secretion
C. C. Pituitary ACTH-secreting adenoma
D. D. Exogenous glucocorticoid use
Correct Answer: C
Detailed Rationale: Cushing disease refers specifically to pituitary ACTH excess. Cushing syndrome is the broader term
for hypercortisolism from any cause.
7. A patient has exertional chest pain that predictably resolves with rest and has no troponin elevation. Which
process is most likely?
A. A. Stable angina from fixed coronary obstruction
B. B. Acute myocardial infarction
C. C. Myocarditis
D. D. Pericardial tamponade
Correct Answer: A
Detailed Rationale: Stable angina reflects a supply-demand mismatch caused by a fixed coronary lesion. Rest reduces
myocardial oxygen demand, relieving symptoms without myocardial necrosis.
8. Which mechanism best explains pulmonary crackles in left-sided heart failure?
A. A. Reduced systemic venous pressure
B. B. Increased pulmonary capillary hydrostatic pressure
C. C. Increased lymphatic drainage
D. D. Reduced pulmonary blood flow
Correct Answer: B
Detailed Rationale: Left ventricular dysfunction increases pressure upstream in the pulmonary circulation. Elevated
pulmonary capillary hydrostatic pressure drives fluid into the interstitium and alveoli.
9. Renin release is most directly stimulated by which change?
, A. A. Increased renal perfusion
B. B. Decreased renal perfusion pressure
C. C. Increased distal sodium delivery
D. D. Increased atrial natriuretic peptide
Correct Answer: B
Detailed Rationale: Reduced renal perfusion is sensed by the juxtaglomerular apparatus and stimulates renin release,
initiating the RAAS cascade.
10. A patient with emphysema has alpha-1 antitrypsin deficiency. What is the normal role of alpha-1 antitrypsin?
A. A. Stimulates bronchoconstriction
B. B. Inhibits neutrophil elastase
C. C. Increases alveolar surface tension
D. D. Activates histamine release
Correct Answer: B
Detailed Rationale: Alpha-1 antitrypsin inhibits proteases such as neutrophil elastase. Deficiency permits excessive
elastin degradation and contributes to emphysema.
11. During the early phase of an allergic asthma attack, which mediator contributes to rapid bronchoconstriction?
A. A. Histamine
B. B. Albumin
C. C. Erythropoietin
D. D. Insulin
Correct Answer: A
Detailed Rationale: Mast-cell degranulation releases histamine rapidly during immediate hypersensitivity, contributing to
bronchoconstriction and vascular permeability.
12. A patient with sickle cell disease has a beta-globin mutation replacing glutamic acid with which amino acid?
A. A. Valine
B. B. Glycine
C. C. Lysine
D. D. Methionine
Correct Answer: A
Detailed Rationale: The classic HbS mutation substitutes valine for glutamic acid at position 6 of the beta-globin chain,
promoting hemoglobin polymerization under low-oxygen conditions.
13. Which finding best distinguishes Crohn disease from ulcerative colitis?
A. A. Continuous rectal involvement
B. B. Transmural inflammation with skip lesions
C. C. Disease limited to mucosa
D. D. Absence of fistulas
Correct Answer: B
, Detailed Rationale: Crohn disease can affect any part of the gastrointestinal tract and characteristically produces
transmural inflammation and skip lesions.
14. What is the defining pathologic feature of amyotrophic lateral sclerosis?
A. A. Loss of dopamine neurons only
B. B. Degeneration of upper and lower motor neurons
C. C. Amyloid plaques as the primary lesion
D. D. Peripheral demyelination only
Correct Answer: B
Detailed Rationale: ALS involves progressive degeneration of motor neurons in the brain and spinal cord, producing
combined upper- and lower-motor-neuron findings.
15. Which term describes malignant cells that have lost differentiation and resemble neither their tissue of origin
nor normal mature cells?
A. A. Hyperplasia
B. B. Anaplasia
C. C. Hypertrophy
D. D. Metaplasia
Correct Answer: B
Detailed Rationale: Anaplasia means lack of differentiation and is a characteristic of aggressive malignant neoplasms.
16. A patient with septic shock develops profound systemic vasodilation. Which mediator plays a major role?
A. A. Nitric oxide
B. B. Angiotensin II
C. C. Endothelin-1
D. D. Erythropoietin
Correct Answer: A
Detailed Rationale: Inflammatory signaling in sepsis induces nitric oxide production, contributing to widespread
vasodilation and reduced systemic vascular resistance.
17. A patient has pH 7.28, PaCO2 55 mmHg, and HCO3− 24 mEq/L. Which primary disorder is present?
A. A. Metabolic alkalosis
B. B. Respiratory acidosis
C. C. Metabolic acidosis
D. D. Respiratory alkalosis
Correct Answer: B
Detailed Rationale: The pH is acidemic and PaCO2 is elevated while bicarbonate is not substantially increased, indicating
primary respiratory acidosis.
18. Which laboratory pattern is most consistent with primary hypothyroidism?
A. A. Low TSH and high free T4
B. B. High TSH and low free T4
