NUR 6111 ADVANCED
PATHOPHYSIOLOGY EXAM 2
QUESTIONS AND ANSWERS WITH
VERIFIED SOLUTIONS 2026/2027
UPDATE. JUST RELEASED
1. Which mechanism best describes the development of foam cells in the pathogenesis of
atherosclerosis?
A. Platelet aggregation at the site of endothelial injury
B. Smooth muscle cell proliferation in the tunica media
C. Macrophages engulfing oxidized LDL within the arterial wall
D. Release of nitric oxide by damaged endothelial cells
Answer: C
Conceptual Explanation: Foam cells are formed when macrophages migrate into the
subendothelial space and ingest oxidized low-density lipoproteins (LDL). This is a hallmark
of the fatty streak, the earliest visible lesion of atherosclerosis.
2. In the Renin-Angiotensin-Aldosterone System (RAAS), what is the primary physiological
effect of Angiotensin II on the vascular system?
A. Systemic vasodilation to reduce afterload
,B. Potent vasoconstriction and stimulation of ventricular remodeling
C. Inhibition of ADH secretion
D. Decreased sympathetic nervous system activity
Answer: B
Conceptual Explanation: Angiotensin II is a potent vasoconstrictor that increases
systemic vascular resistance. It also promotes the release of aldosterone and contributes to
long-term structural changes in the heart known as remodeling.
3. A patient presents with Heart Failure with Preserved Ejection Fraction (HFpEF). Which
statement correctly describes this condition?
A. It is characterized by impaired ventricular contraction and low stroke volume
B. The ejection fraction is typically below 40%
C. The primary issue is abnormal diastolic relaxation and decreased ventricular compliance
D. It is most commonly caused by acute myocardial infarction
Answer: C
Conceptual Explanation: HFpEF, or diastolic heart failure, involves a stiff non-compliant
left ventricle that cannot fill properly, even though the squeeze (systole) remains relatively
normal (EF > 50%).
, 4. Which of the following is the most significant consequence of the chronic inflammatory
state seen in COPD?
A. Increased production of alpha-1 antitrypsin
B. Reversible bronchospasm induced by IgE
C. Destruction of alveolar walls and loss of elastic recoil
D. Transient narrowing of upper airways during sleep
Answer: C
Conceptual Explanation: Chronic inflammation in COPD leads to the release of proteases
(like elastase) that break down the lung parenchyma (emphysema), leading to air trapping
and loss of gas exchange surface area.
5. A patient with Chronic Kidney Disease (CKD) develops secondary hyperparathyroidism.
What is the initiating factor?
A. Excessive excretion of calcium by the kidneys
B. Hyperphosphatemia and decreased activation of Vitamin D
C. Direct stimulation of the parathyroid gland by urea
D. Metabolic alkalosis causing calcium binding to albumin
Answer: B
PATHOPHYSIOLOGY EXAM 2
QUESTIONS AND ANSWERS WITH
VERIFIED SOLUTIONS 2026/2027
UPDATE. JUST RELEASED
1. Which mechanism best describes the development of foam cells in the pathogenesis of
atherosclerosis?
A. Platelet aggregation at the site of endothelial injury
B. Smooth muscle cell proliferation in the tunica media
C. Macrophages engulfing oxidized LDL within the arterial wall
D. Release of nitric oxide by damaged endothelial cells
Answer: C
Conceptual Explanation: Foam cells are formed when macrophages migrate into the
subendothelial space and ingest oxidized low-density lipoproteins (LDL). This is a hallmark
of the fatty streak, the earliest visible lesion of atherosclerosis.
2. In the Renin-Angiotensin-Aldosterone System (RAAS), what is the primary physiological
effect of Angiotensin II on the vascular system?
A. Systemic vasodilation to reduce afterload
,B. Potent vasoconstriction and stimulation of ventricular remodeling
C. Inhibition of ADH secretion
D. Decreased sympathetic nervous system activity
Answer: B
Conceptual Explanation: Angiotensin II is a potent vasoconstrictor that increases
systemic vascular resistance. It also promotes the release of aldosterone and contributes to
long-term structural changes in the heart known as remodeling.
3. A patient presents with Heart Failure with Preserved Ejection Fraction (HFpEF). Which
statement correctly describes this condition?
A. It is characterized by impaired ventricular contraction and low stroke volume
B. The ejection fraction is typically below 40%
C. The primary issue is abnormal diastolic relaxation and decreased ventricular compliance
D. It is most commonly caused by acute myocardial infarction
Answer: C
Conceptual Explanation: HFpEF, or diastolic heart failure, involves a stiff non-compliant
left ventricle that cannot fill properly, even though the squeeze (systole) remains relatively
normal (EF > 50%).
, 4. Which of the following is the most significant consequence of the chronic inflammatory
state seen in COPD?
A. Increased production of alpha-1 antitrypsin
B. Reversible bronchospasm induced by IgE
C. Destruction of alveolar walls and loss of elastic recoil
D. Transient narrowing of upper airways during sleep
Answer: C
Conceptual Explanation: Chronic inflammation in COPD leads to the release of proteases
(like elastase) that break down the lung parenchyma (emphysema), leading to air trapping
and loss of gas exchange surface area.
5. A patient with Chronic Kidney Disease (CKD) develops secondary hyperparathyroidism.
What is the initiating factor?
A. Excessive excretion of calcium by the kidneys
B. Hyperphosphatemia and decreased activation of Vitamin D
C. Direct stimulation of the parathyroid gland by urea
D. Metabolic alkalosis causing calcium binding to albumin
Answer: B
