NURS 611 EXAM 1
PATHOPHYSIOLOGY 2026 EXAM
QUESTIONS AND VERIFIED
ANSWERS WITH RATIONALES
GRADED A+ LATEST
Question 1
A patient with long-standing hypertension develops left ventricular hypertrophy.
Which cellular mechanism most directly explains this adaptation?
A. Increased myocyte apoptosis
B. Increased protein synthesis within cardiac myocytes
C. Increased mitochondrial destruction
D. Replacement of myocytes with fibrous tissue
Correct Answer: B
Rationale:
Left ventricular hypertrophy results from increased workload, leading to adaptive
hypertrophy characterized by increased protein synthesis and enlargement of
existing myocytes, not cell division or replacement.
Question 2
A patient presents with acute inflammation following tissue injury. Which
mediator is primarily responsible for increased vascular permeability during the
early inflammatory response?
A. Prostaglandins
B. Histamine
C. Bradykinin
D. Leukotrienes
,Correct Answer: B
Rationale:
Histamine is released from mast cells and basophils early in inflammation and
directly increases capillary permeability, allowing plasma proteins and leukocytes
to exit the circulation.
Question 3
A 58-year-old patient with poorly controlled diabetes reports numbness and
burning pain in the feet. Which mechanism best explains the development of
diabetic neuropathy?
A. Autoimmune destruction of Schwann cells
B. Microvascular ischemia and sorbitol accumulation
C. Acute inflammatory demyelination
D. Compression of peripheral nerves
Correct Answer: B
Rationale:
Chronic hyperglycemia causes sorbitol accumulation within nerves and
microvascular damage, leading to ischemia and progressive nerve dysfunction.
Question 4
Which acid–base disturbance is most consistent with prolonged vomiting?
A. Metabolic acidosis
B. Respiratory acidosis
C. Metabolic alkalosis
D. Respiratory alkalosis
Correct Answer: C
Rationale:
Loss of gastric acid (hydrochloric acid) through vomiting leads to metabolic
alkalosis due to increased serum bicarbonate.
,Question 5
Which hormone is primarily responsible for increasing serum calcium levels?
A. Calcitonin
B. Vitamin D
C. Parathyroid hormone
D. Aldosterone
Correct Answer: C
Rationale:
Parathyroid hormone increases serum calcium by promoting bone resorption, renal
calcium reabsorption, and activation of vitamin D.
Question 6
A patient with sepsis develops hypotension despite adequate fluid resuscitation.
Which mechanism contributes most to septic shock?
A. Decreased cardiac contractility from hypoxia
B. Widespread vasodilation and capillary leakage
C. Acute coronary artery occlusion
D. Increased blood viscosity
Correct Answer: B
Rationale:
Septic shock is characterized by systemic vasodilation and increased capillary
permeability caused by inflammatory mediators, leading to relative hypovolemia
and hypotension.
, Question 7
Which finding is most characteristic of chronic inflammation?
A. Neutrophil predominance
B. Granuloma formation
C. Increased exudate production
D. Rapid tissue resolution
Correct Answer: B
Rationale:
Chronic inflammation is marked by macrophages, lymphocytes, tissue destruction,
and granuloma formation rather than acute neutrophilic responses.
Question 8
A patient with chronic kidney disease develops anemia. Which mechanism best
explains this finding?
A. Iron malabsorption
B. Reduced erythropoietin production
C. Increased red blood cell destruction
D. Folate deficiency
Correct Answer: B
Rationale:
The kidneys produce erythropoietin. Chronic kidney disease results in reduced
erythropoietin synthesis, leading to decreased red blood cell production.
Question 9
Which change is expected during the compensatory stage of shock?
A. Decreased heart rate
B. Decreased systemic vascular resistance
C. Activation of the renin–angiotensin–aldosterone system
D. Cellular anoxia
PATHOPHYSIOLOGY 2026 EXAM
QUESTIONS AND VERIFIED
ANSWERS WITH RATIONALES
GRADED A+ LATEST
Question 1
A patient with long-standing hypertension develops left ventricular hypertrophy.
Which cellular mechanism most directly explains this adaptation?
A. Increased myocyte apoptosis
B. Increased protein synthesis within cardiac myocytes
C. Increased mitochondrial destruction
D. Replacement of myocytes with fibrous tissue
Correct Answer: B
Rationale:
Left ventricular hypertrophy results from increased workload, leading to adaptive
hypertrophy characterized by increased protein synthesis and enlargement of
existing myocytes, not cell division or replacement.
Question 2
A patient presents with acute inflammation following tissue injury. Which
mediator is primarily responsible for increased vascular permeability during the
early inflammatory response?
A. Prostaglandins
B. Histamine
C. Bradykinin
D. Leukotrienes
,Correct Answer: B
Rationale:
Histamine is released from mast cells and basophils early in inflammation and
directly increases capillary permeability, allowing plasma proteins and leukocytes
to exit the circulation.
Question 3
A 58-year-old patient with poorly controlled diabetes reports numbness and
burning pain in the feet. Which mechanism best explains the development of
diabetic neuropathy?
A. Autoimmune destruction of Schwann cells
B. Microvascular ischemia and sorbitol accumulation
C. Acute inflammatory demyelination
D. Compression of peripheral nerves
Correct Answer: B
Rationale:
Chronic hyperglycemia causes sorbitol accumulation within nerves and
microvascular damage, leading to ischemia and progressive nerve dysfunction.
Question 4
Which acid–base disturbance is most consistent with prolonged vomiting?
A. Metabolic acidosis
B. Respiratory acidosis
C. Metabolic alkalosis
D. Respiratory alkalosis
Correct Answer: C
Rationale:
Loss of gastric acid (hydrochloric acid) through vomiting leads to metabolic
alkalosis due to increased serum bicarbonate.
,Question 5
Which hormone is primarily responsible for increasing serum calcium levels?
A. Calcitonin
B. Vitamin D
C. Parathyroid hormone
D. Aldosterone
Correct Answer: C
Rationale:
Parathyroid hormone increases serum calcium by promoting bone resorption, renal
calcium reabsorption, and activation of vitamin D.
Question 6
A patient with sepsis develops hypotension despite adequate fluid resuscitation.
Which mechanism contributes most to septic shock?
A. Decreased cardiac contractility from hypoxia
B. Widespread vasodilation and capillary leakage
C. Acute coronary artery occlusion
D. Increased blood viscosity
Correct Answer: B
Rationale:
Septic shock is characterized by systemic vasodilation and increased capillary
permeability caused by inflammatory mediators, leading to relative hypovolemia
and hypotension.
, Question 7
Which finding is most characteristic of chronic inflammation?
A. Neutrophil predominance
B. Granuloma formation
C. Increased exudate production
D. Rapid tissue resolution
Correct Answer: B
Rationale:
Chronic inflammation is marked by macrophages, lymphocytes, tissue destruction,
and granuloma formation rather than acute neutrophilic responses.
Question 8
A patient with chronic kidney disease develops anemia. Which mechanism best
explains this finding?
A. Iron malabsorption
B. Reduced erythropoietin production
C. Increased red blood cell destruction
D. Folate deficiency
Correct Answer: B
Rationale:
The kidneys produce erythropoietin. Chronic kidney disease results in reduced
erythropoietin synthesis, leading to decreased red blood cell production.
Question 9
Which change is expected during the compensatory stage of shock?
A. Decreased heart rate
B. Decreased systemic vascular resistance
C. Activation of the renin–angiotensin–aldosterone system
D. Cellular anoxia
