NR 511 CEA EXAM / ACTUAL EXAM QUESTIONS
AND CORRECT ANSWERS WITH RATIONALES
GRADED A+ LATEST Chamberlain University
_____________________________________
Question 1
A 54-year-old man with long-standing hypertension presents with progressive
dyspnea and lower-extremity edema. Echocardiography reveals concentric left
ventricular hypertrophy and preserved ejection fraction. Which pathophysiologic
mechanism best explains his symptoms?
A. Impaired systolic contraction due to myocyte necrosis
B. Decreased ventricular compliance leading to impaired diastolic filling
C. Acute reduction in preload from nervous dilation
D. Valvular regurgitation causing volume overload
Correct Answer: B
Rationale: Heart failure with preserved ejection fraction (HFpEF) is characterized
by diastolic dysfunction due to stiff, noncompliant ventricles, commonly from
chronic hypertension-induced hypertrophy.
Question 2
,A patient with type 2 diabetes mellitus is found to have persistent
microalbuminuria. Which pharmacologic intervention most directly reduces
intraglomerular pressure and slows disease progression?
A. Thiazide diuretic
B. Calcium channel blocker
C. ACE inhibitor
D. Beta-blocker
Correct Answer: C
Rationale: ACE inhibitors reduce efferent arteriolar constriction, lowering
intraglomerular pressure and decreasing proteinuria, thereby slowing diabetic
nephropathy progression.
Question 3
A 37-year-old woman presents with heat intolerance, palpitations, and weight loss.
Laboratory testing shows suppressed TSH and elevated free T4. Which additional
finding is most consistent with Graves disease?
A. Cold intolerance
B. Prethallium myxedema
C. Bradycardia
D. Delayed deep tendon reflexes
,Correct Answer: B
Rationale: Graves disease is an autoimmune hyperthyroid condition associated
with ophthalmopathy and prethallium myxedema due to glycosaminoglycan
deposition.
Question 4
Which mechanism best explains the antihypertensive effect of thiazide diuretics
during long-term therapy?
A. Reduced cardiac output
B. Increased natriuresis
C. Decreased systemic vascular resistance
D. Inhibition of the renin-angiotensin-aldosterone system
Correct Answer: C
Rationale: Although thiazides initially reduce plasma volume, their long-term
blood pressure-lowering effect is due primarily to decreased peripheral vascular
resistance.
Question 5
A patient presents with fever, productive cough, and pleuritic chest pain. Chest
radiograph reveals lobar consolidation. Which immune response is most
responsible for bacterial clearance in this condition?
, A. CD8+ cytotoxic T-cell activation
B. IgE-mediated mast cell degranulation
C. Neutrophil phagocytosis
D. Natural killer cell activity
Correct Answer: C
Rationale: Acute bacterial pneumonia primarily involves innate immune responses,
with neutrophils playing a key role in phagocytosis and bacterial clearance.
Question 6
A 62-year-old woman is diagnosed with osteoporosis. Which medication directly
inhibits osteoclast-mediated bone resorption?
A. Tetracaine
B. Calcitonin
C. Alendronate
D. Vitamin D
Correct Answer: C
Rationale: Bisphosphonates such as alendronate inhibit osteoclast activity,
reducing bone resorption and fracture risk.
AND CORRECT ANSWERS WITH RATIONALES
GRADED A+ LATEST Chamberlain University
_____________________________________
Question 1
A 54-year-old man with long-standing hypertension presents with progressive
dyspnea and lower-extremity edema. Echocardiography reveals concentric left
ventricular hypertrophy and preserved ejection fraction. Which pathophysiologic
mechanism best explains his symptoms?
A. Impaired systolic contraction due to myocyte necrosis
B. Decreased ventricular compliance leading to impaired diastolic filling
C. Acute reduction in preload from nervous dilation
D. Valvular regurgitation causing volume overload
Correct Answer: B
Rationale: Heart failure with preserved ejection fraction (HFpEF) is characterized
by diastolic dysfunction due to stiff, noncompliant ventricles, commonly from
chronic hypertension-induced hypertrophy.
Question 2
,A patient with type 2 diabetes mellitus is found to have persistent
microalbuminuria. Which pharmacologic intervention most directly reduces
intraglomerular pressure and slows disease progression?
A. Thiazide diuretic
B. Calcium channel blocker
C. ACE inhibitor
D. Beta-blocker
Correct Answer: C
Rationale: ACE inhibitors reduce efferent arteriolar constriction, lowering
intraglomerular pressure and decreasing proteinuria, thereby slowing diabetic
nephropathy progression.
Question 3
A 37-year-old woman presents with heat intolerance, palpitations, and weight loss.
Laboratory testing shows suppressed TSH and elevated free T4. Which additional
finding is most consistent with Graves disease?
A. Cold intolerance
B. Prethallium myxedema
C. Bradycardia
D. Delayed deep tendon reflexes
,Correct Answer: B
Rationale: Graves disease is an autoimmune hyperthyroid condition associated
with ophthalmopathy and prethallium myxedema due to glycosaminoglycan
deposition.
Question 4
Which mechanism best explains the antihypertensive effect of thiazide diuretics
during long-term therapy?
A. Reduced cardiac output
B. Increased natriuresis
C. Decreased systemic vascular resistance
D. Inhibition of the renin-angiotensin-aldosterone system
Correct Answer: C
Rationale: Although thiazides initially reduce plasma volume, their long-term
blood pressure-lowering effect is due primarily to decreased peripheral vascular
resistance.
Question 5
A patient presents with fever, productive cough, and pleuritic chest pain. Chest
radiograph reveals lobar consolidation. Which immune response is most
responsible for bacterial clearance in this condition?
, A. CD8+ cytotoxic T-cell activation
B. IgE-mediated mast cell degranulation
C. Neutrophil phagocytosis
D. Natural killer cell activity
Correct Answer: C
Rationale: Acute bacterial pneumonia primarily involves innate immune responses,
with neutrophils playing a key role in phagocytosis and bacterial clearance.
Question 6
A 62-year-old woman is diagnosed with osteoporosis. Which medication directly
inhibits osteoclast-mediated bone resorption?
A. Tetracaine
B. Calcitonin
C. Alendronate
D. Vitamin D
Correct Answer: C
Rationale: Bisphosphonates such as alendronate inhibit osteoclast activity,
reducing bone resorption and fracture risk.
