NR 507 WEEK 3 ADVANCED
PATHOPHYSIOLOGY EXAM
QUESTIONS AND ANSWERS | 50
QUESTIONS | PROCTORED EXAM |
CHAMBERLAIN UNIVERSITY
1. Which of the following best describes the initial step in the development of
atherosclerosis?
A. Formation of a fibrous plaque
B. Accumulation of oxidized LDL in the tunica media
C. Migration of smooth muscle cells into the intima
D. Injury to the endothelial cells of the arterial wall
Answer: D
Conceptual Explanation: The process of atherosclerosis begins with injury to the
endothelial cells that line the artery walls, often caused by hypertension, smoking, or
hyperlipidemia.
2. In the renin-angiotensin-aldosterone system (RAAS), which substance is directly
responsible for potent vasoconstriction?
A. Angiotensin II
,B. Angiotensin I
C. Renin
D. Aldosterone
Answer: A
Conceptual Explanation: Angiotensin II is a powerful systemic vasoconstrictor and also
stimulates the release of aldosterone from the adrenal cortex.
3. A patient presents with sudden chest pain that occurs at rest and follows a cyclic pattern,
often at night. This is characteristic of:
A. Stable angina
B. Prinzmetal (variant) angina
C. Unstable angina
D. Silent ischemia
Answer: B
Conceptual Explanation: Prinzmetal angina is caused by vasospasm of the coronary
arteries and often occurs at rest, frequently during sleep or at specific times of the day.
4. Which cardiac biomarker is the most specific and sensitive for diagnosing a myocardial
infarction?
A. Creatine kinase (CK-MB)
B. Troponin I
, C. Lactate dehydrogenase (LDH)
D. Myoglobin
Answer: B
Conceptual Explanation: Troponins (I and T) are highly specific to cardiac muscle and are
the preferred biomarkers for detecting myocardial injury.
5. Left-sided heart failure typically leads to which clinical manifestation due to backward
effects?
A. Peripheral edema
B. Jugular venous distention
C. Hepatomegaly
D. Pulmonary congestion and edema
Answer: D
Conceptual Explanation: Left-sided heart failure causes blood to back up into the
pulmonary circulation, leading to increased hydrostatic pressure in pulmonary capillaries
and fluid movement into the alveoli.
6. Which type of shock is characterized by a massive release of histamine and other
inflammatory mediators leading to widespread vasodilation?
A. Septic shock
B. Anaphylactic shock
PATHOPHYSIOLOGY EXAM
QUESTIONS AND ANSWERS | 50
QUESTIONS | PROCTORED EXAM |
CHAMBERLAIN UNIVERSITY
1. Which of the following best describes the initial step in the development of
atherosclerosis?
A. Formation of a fibrous plaque
B. Accumulation of oxidized LDL in the tunica media
C. Migration of smooth muscle cells into the intima
D. Injury to the endothelial cells of the arterial wall
Answer: D
Conceptual Explanation: The process of atherosclerosis begins with injury to the
endothelial cells that line the artery walls, often caused by hypertension, smoking, or
hyperlipidemia.
2. In the renin-angiotensin-aldosterone system (RAAS), which substance is directly
responsible for potent vasoconstriction?
A. Angiotensin II
,B. Angiotensin I
C. Renin
D. Aldosterone
Answer: A
Conceptual Explanation: Angiotensin II is a powerful systemic vasoconstrictor and also
stimulates the release of aldosterone from the adrenal cortex.
3. A patient presents with sudden chest pain that occurs at rest and follows a cyclic pattern,
often at night. This is characteristic of:
A. Stable angina
B. Prinzmetal (variant) angina
C. Unstable angina
D. Silent ischemia
Answer: B
Conceptual Explanation: Prinzmetal angina is caused by vasospasm of the coronary
arteries and often occurs at rest, frequently during sleep or at specific times of the day.
4. Which cardiac biomarker is the most specific and sensitive for diagnosing a myocardial
infarction?
A. Creatine kinase (CK-MB)
B. Troponin I
, C. Lactate dehydrogenase (LDH)
D. Myoglobin
Answer: B
Conceptual Explanation: Troponins (I and T) are highly specific to cardiac muscle and are
the preferred biomarkers for detecting myocardial injury.
5. Left-sided heart failure typically leads to which clinical manifestation due to backward
effects?
A. Peripheral edema
B. Jugular venous distention
C. Hepatomegaly
D. Pulmonary congestion and edema
Answer: D
Conceptual Explanation: Left-sided heart failure causes blood to back up into the
pulmonary circulation, leading to increased hydrostatic pressure in pulmonary capillaries
and fluid movement into the alveoli.
6. Which type of shock is characterized by a massive release of histamine and other
inflammatory mediators leading to widespread vasodilation?
A. Septic shock
B. Anaphylactic shock
