NR 507 EXAM 3 - ADVANCED
PATHOPHYSIOLOGY QUESTIONS &
ANSWERS (CHAMBERLAIN) 100%
GUARANTEE PASS
1. Which of the following is the primary mechanism behind the development of pulmonary
edema in patients with left-sided heart failure?
A. Increased hydrostatic pressure in the pulmonary capillaries
B. Decreased oncotic pressure in the pulmonary capillaries
C. Increased permeability of the alveolar-capillary membrane
D. Obstruction of the lymphatic drainage in the lungs
Answer: A
Conceptual Explanation: In left-sided heart failure, the left ventricle fails to pump blood
effectively, causing blood to back up into the left atrium and pulmonary veins. This
increases pulmonary capillary hydrostatic pressure, forcing fluid into the interstitial and
alveolar spaces.
2. A patient with Chronic Kidney Disease (CKD) presents with significant anemia. What is the
most likely pathophysiological cause?
A. Chronic blood loss during hemodialysis
,B. Inadequate dietary intake of iron and folate
C. Reduced production of erythropoietin by the kidneys
D. Premature destruction of red blood cells due to uremia
Answer: C
Conceptual Explanation: Erythropoietin is a hormone produced by the interstitial cells of
the kidney that stimulates red blood cell production. In CKD, the loss of functional
nephrons leads to decreased erythropoietin production, resulting in normocytic,
normochromic anemia.
3. In the pathophysiology of Acute Respiratory Distress Syndrome (ARDS), what is the direct
result of the ‘exudative phase’?
A. Hyperinflation of the alveoli due to air trapping
B. Proliferation of Type II pneumocytes
C. Extensive pulmonary fibrosis and remodeling
D. Hyaline membrane formation and surfactant inactivation
Answer: D
Conceptual Explanation: During the exudative phase of ARDS, inflammatory mediators
damage the alveolar-capillary membrane, leading to the accumulation of protein-rich fluid.
This fluid, combined with dead cells, forms hyaline membranes and inactivates surfactant,
leading to atelectasis.
, 4. Which type of shock is characterized by a high cardiac output and a low systemic vascular
resistance (SVR)?
A. Cardiogenic shock
B. Hypovolemic shock
C. Septic shock
D. Neurogenic shock
Answer: C
Conceptual Explanation: Septic shock is a distributive shock where massive vasodilation
causes a significant drop in SVR. Initially, the body compensates with a hyperdynamic state
(increased cardiac output) to maintain perfusion.
5. What is the hallmark finding that distinguishes Nephrotic Syndrome from Nephritic
Syndrome?
A. Presence of red blood cell casts
B. Gross hematuria and hypertension
C. Proteinuria greater than 3.5 grams per day
D. Increased Serum Creatinine and BUN
Answer: C
Conceptual Explanation: Nephrotic syndrome is characterized by massive proteinuria
(>3.5g/day) due to glomerular basement membrane damage, leading to hypoalbuminemia
PATHOPHYSIOLOGY QUESTIONS &
ANSWERS (CHAMBERLAIN) 100%
GUARANTEE PASS
1. Which of the following is the primary mechanism behind the development of pulmonary
edema in patients with left-sided heart failure?
A. Increased hydrostatic pressure in the pulmonary capillaries
B. Decreased oncotic pressure in the pulmonary capillaries
C. Increased permeability of the alveolar-capillary membrane
D. Obstruction of the lymphatic drainage in the lungs
Answer: A
Conceptual Explanation: In left-sided heart failure, the left ventricle fails to pump blood
effectively, causing blood to back up into the left atrium and pulmonary veins. This
increases pulmonary capillary hydrostatic pressure, forcing fluid into the interstitial and
alveolar spaces.
2. A patient with Chronic Kidney Disease (CKD) presents with significant anemia. What is the
most likely pathophysiological cause?
A. Chronic blood loss during hemodialysis
,B. Inadequate dietary intake of iron and folate
C. Reduced production of erythropoietin by the kidneys
D. Premature destruction of red blood cells due to uremia
Answer: C
Conceptual Explanation: Erythropoietin is a hormone produced by the interstitial cells of
the kidney that stimulates red blood cell production. In CKD, the loss of functional
nephrons leads to decreased erythropoietin production, resulting in normocytic,
normochromic anemia.
3. In the pathophysiology of Acute Respiratory Distress Syndrome (ARDS), what is the direct
result of the ‘exudative phase’?
A. Hyperinflation of the alveoli due to air trapping
B. Proliferation of Type II pneumocytes
C. Extensive pulmonary fibrosis and remodeling
D. Hyaline membrane formation and surfactant inactivation
Answer: D
Conceptual Explanation: During the exudative phase of ARDS, inflammatory mediators
damage the alveolar-capillary membrane, leading to the accumulation of protein-rich fluid.
This fluid, combined with dead cells, forms hyaline membranes and inactivates surfactant,
leading to atelectasis.
, 4. Which type of shock is characterized by a high cardiac output and a low systemic vascular
resistance (SVR)?
A. Cardiogenic shock
B. Hypovolemic shock
C. Septic shock
D. Neurogenic shock
Answer: C
Conceptual Explanation: Septic shock is a distributive shock where massive vasodilation
causes a significant drop in SVR. Initially, the body compensates with a hyperdynamic state
(increased cardiac output) to maintain perfusion.
5. What is the hallmark finding that distinguishes Nephrotic Syndrome from Nephritic
Syndrome?
A. Presence of red blood cell casts
B. Gross hematuria and hypertension
C. Proteinuria greater than 3.5 grams per day
D. Increased Serum Creatinine and BUN
Answer: C
Conceptual Explanation: Nephrotic syndrome is characterized by massive proteinuria
(>3.5g/day) due to glomerular basement membrane damage, leading to hypoalbuminemia
