NR507 Advanced Pathophysiology Exam 2 Questions and Answers and
Explanations | Latest - Chamberlain
1. Which of the following describes the pathophysiology of emphysema?
A. Destruction of alveolar walls and loss of elastic recoil
B. Chronic inflammation causing excessive mucus production
C. Reversible airway obstruction due to hypersensitivity
D. Infection and inflammation of the pleural space
Answer: A
Explanation: Emphysema is characterized by the destruction of alveolar walls and loss of
elastic recoil, leading to air trapping and enlargement of the gas-exchange airways.
2. In the renin-angiotensin-aldosterone system (RAAS), what is the direct effect
of Angiotensin II?
A. Systemic vasoconstriction
B. Sodium and water excretion
C. Peripheral vasodilation
D. Decreased myocardial contractility
Answer: A
Explanation: Angiotensin II is a potent vasoconstrictor that increases systemic vascular
resistance and stimulates the release of aldosterone.
,3. Which clinical manifestation is most characteristic of Right-sided Heart
Failure?
A. Pulmonary edema and crackles
B. Dyspnea on exertion
C. Paroxysmal nocturnal dyspnea
D. Jugular venous distention and peripheral edema
Answer: D
Explanation: Right-sided heart failure leads to systemic venous congestion, manifesting as
JVD, hepatomegaly, and peripheral edema.
4. What is the primary pathophysiology behind Nephrotic Syndrome?
A. Inflammatory injury to the glomerular capillaries with hematuria
B. Increased glomerular permeability to proteins resulting in massive proteinuria
C. Obstruction of the urinary tract by calcium stones
D. Infection of the renal pelvis and interstitium
Answer: B
Explanation: Nephrotic syndrome is characterized by massive proteinuria (usually
>3.5g/day) due to increased glomerular permeability.
,5. A patient with Chronic Kidney Disease (CKD) develops anemia. What is the
most likely cause?
A. Inadequate production of erythropoietin
B. Chronic blood loss in the urine
C. Folic acid deficiency
D. Hemolysis of red blood cells in the kidneys
Answer: A
Explanation: As renal function declines, the kidneys produce less erythropoietin, which is
necessary for red blood cell production in the bone marrow.
6. Which type of anemia is characterized by Vitamin B12 deficiency due to a lack
of Intrinsic Factor?
A. Iron deficiency anemia
B. Aplastic anemia
C. Hemolytic anemia
D. Pernicious anemia
Answer: D
Explanation: Pernicious anemia is a type of macrocytic-normochromic anemia caused by a
lack of intrinsic factor, which is required for Vitamin B12 absorption.
, 7. Which of the following is a hallmark of Acute Respiratory Distress Syndrome
(ARDS)?
A. Chronic mucus hypersecretion
B. Localized infection with Ghon complex formation
C. Left ventricular failure leading to high capillary pressure
D. Increased alveolar-capillary membrane permeability
Answer: D
Explanation: ARDS involves acute lung inflammation and diffuse alveolocapillary injury,
resulting in increased permeability and non-cardiogenic pulmonary edema.
8. What is the primary cause of symptoms in Disseminated Intravascular
Coagulation (DIC)?
A. Vitamin K deficiency
B. Increased platelet production
C. Autoimmune destruction of red blood cells
D. Widespread microvascular clotting followed by depletion of clotting factors and
bleeding
Answer: D
Explanation: DIC involves uncontrolled activation of coagulation, using up clotting factors
and platelets, leading to both ischemia and hemorrhage.
Explanations | Latest - Chamberlain
1. Which of the following describes the pathophysiology of emphysema?
A. Destruction of alveolar walls and loss of elastic recoil
B. Chronic inflammation causing excessive mucus production
C. Reversible airway obstruction due to hypersensitivity
D. Infection and inflammation of the pleural space
Answer: A
Explanation: Emphysema is characterized by the destruction of alveolar walls and loss of
elastic recoil, leading to air trapping and enlargement of the gas-exchange airways.
2. In the renin-angiotensin-aldosterone system (RAAS), what is the direct effect
of Angiotensin II?
A. Systemic vasoconstriction
B. Sodium and water excretion
C. Peripheral vasodilation
D. Decreased myocardial contractility
Answer: A
Explanation: Angiotensin II is a potent vasoconstrictor that increases systemic vascular
resistance and stimulates the release of aldosterone.
,3. Which clinical manifestation is most characteristic of Right-sided Heart
Failure?
A. Pulmonary edema and crackles
B. Dyspnea on exertion
C. Paroxysmal nocturnal dyspnea
D. Jugular venous distention and peripheral edema
Answer: D
Explanation: Right-sided heart failure leads to systemic venous congestion, manifesting as
JVD, hepatomegaly, and peripheral edema.
4. What is the primary pathophysiology behind Nephrotic Syndrome?
A. Inflammatory injury to the glomerular capillaries with hematuria
B. Increased glomerular permeability to proteins resulting in massive proteinuria
C. Obstruction of the urinary tract by calcium stones
D. Infection of the renal pelvis and interstitium
Answer: B
Explanation: Nephrotic syndrome is characterized by massive proteinuria (usually
>3.5g/day) due to increased glomerular permeability.
,5. A patient with Chronic Kidney Disease (CKD) develops anemia. What is the
most likely cause?
A. Inadequate production of erythropoietin
B. Chronic blood loss in the urine
C. Folic acid deficiency
D. Hemolysis of red blood cells in the kidneys
Answer: A
Explanation: As renal function declines, the kidneys produce less erythropoietin, which is
necessary for red blood cell production in the bone marrow.
6. Which type of anemia is characterized by Vitamin B12 deficiency due to a lack
of Intrinsic Factor?
A. Iron deficiency anemia
B. Aplastic anemia
C. Hemolytic anemia
D. Pernicious anemia
Answer: D
Explanation: Pernicious anemia is a type of macrocytic-normochromic anemia caused by a
lack of intrinsic factor, which is required for Vitamin B12 absorption.
, 7. Which of the following is a hallmark of Acute Respiratory Distress Syndrome
(ARDS)?
A. Chronic mucus hypersecretion
B. Localized infection with Ghon complex formation
C. Left ventricular failure leading to high capillary pressure
D. Increased alveolar-capillary membrane permeability
Answer: D
Explanation: ARDS involves acute lung inflammation and diffuse alveolocapillary injury,
resulting in increased permeability and non-cardiogenic pulmonary edema.
8. What is the primary cause of symptoms in Disseminated Intravascular
Coagulation (DIC)?
A. Vitamin K deficiency
B. Increased platelet production
C. Autoimmune destruction of red blood cells
D. Widespread microvascular clotting followed by depletion of clotting factors and
bleeding
Answer: D
Explanation: DIC involves uncontrolled activation of coagulation, using up clotting factors
and platelets, leading to both ischemia and hemorrhage.
