WGU D236 VASCULAR AND CARDIAC
HEALTH ADVANCED EXAM PREP
QUESTIONS AND ANSWERS
1. Which pathophysiological process is primarily responsible for the development of an
atherosclerotic plaque?
A. Excessive production of high-density lipoproteins
B. Spasmodic constriction of the tunica adventitia
C. Chronic inflammation resulting from endothelial injury
D. Systemic vasodilation leading to venous stasis
Answer: C
Conceptual Explanation: Atherosclerosis is initiated by endothelial injury, which triggers
a chronic inflammatory response, leading to lipid accumulation and plaque formation.
2. A patient presents with an Ejection Fraction (EF) of 35%. Which condition does this finding
most likely indicate?
A. Systolic heart failure
B. Hyperdynamic systolic function
,C. Normal cardiac function
D. Diastolic heart failure with preserved EF
Answer: A
Conceptual Explanation: An ejection fraction below 40% is a hallmark of systolic heart
failure, indicating the heart cannot pump blood effectively.
3. Which laboratory marker is the most specific for detecting acute myocardial injury?
A. Creatine Kinase (CK-MB)
B. Cardiac Troponin I
C. Brain Natriuretic Peptide (BNP)
D. C-Reactive Protein (CRP)
Answer: B
Conceptual Explanation: Cardiac Troponin I and T are highly specific and sensitive
biomarkers for myocardial necrosis.
4. What is the primary physiological effect of Brain Natriuretic Peptide (BNP) secretion?
A. Vasodilation and increased natriuresis
B. Vasoconstriction and sodium retention
C. Increased sympathetic nervous system activity
D. Stimulation of the renin-angiotensin-aldosterone system
, Answer: A
Conceptual Explanation: BNP is released in response to atrial or ventricular stretch and
promotes vasodilation and the excretion of sodium and water.
5. In the context of the RAAS pathway, what is the role of Angiotensin-Converting Enzyme
(ACE)?
A. Inhibits the release of renin from the kidneys
B. Converts Angiotensinogen to Angiotensin I
C. Directly stimulates the release of aldosterone
D. Converts Angiotensin I to Angiotensin II
Answer: D
Conceptual Explanation: ACE is primarily responsible for converting the inactive
Angiotensin I into the potent vasoconstrictor Angiotensin II.
6. Which clinical manifestation is most characteristic of Right-sided Heart Failure?
A. Peripheral edema and jugular venous distention
B. Pulmonary crackles and dyspnea
C. Pink frothy sputum
D. Paroxysmal nocturnal dyspnea
Answer: A
HEALTH ADVANCED EXAM PREP
QUESTIONS AND ANSWERS
1. Which pathophysiological process is primarily responsible for the development of an
atherosclerotic plaque?
A. Excessive production of high-density lipoproteins
B. Spasmodic constriction of the tunica adventitia
C. Chronic inflammation resulting from endothelial injury
D. Systemic vasodilation leading to venous stasis
Answer: C
Conceptual Explanation: Atherosclerosis is initiated by endothelial injury, which triggers
a chronic inflammatory response, leading to lipid accumulation and plaque formation.
2. A patient presents with an Ejection Fraction (EF) of 35%. Which condition does this finding
most likely indicate?
A. Systolic heart failure
B. Hyperdynamic systolic function
,C. Normal cardiac function
D. Diastolic heart failure with preserved EF
Answer: A
Conceptual Explanation: An ejection fraction below 40% is a hallmark of systolic heart
failure, indicating the heart cannot pump blood effectively.
3. Which laboratory marker is the most specific for detecting acute myocardial injury?
A. Creatine Kinase (CK-MB)
B. Cardiac Troponin I
C. Brain Natriuretic Peptide (BNP)
D. C-Reactive Protein (CRP)
Answer: B
Conceptual Explanation: Cardiac Troponin I and T are highly specific and sensitive
biomarkers for myocardial necrosis.
4. What is the primary physiological effect of Brain Natriuretic Peptide (BNP) secretion?
A. Vasodilation and increased natriuresis
B. Vasoconstriction and sodium retention
C. Increased sympathetic nervous system activity
D. Stimulation of the renin-angiotensin-aldosterone system
, Answer: A
Conceptual Explanation: BNP is released in response to atrial or ventricular stretch and
promotes vasodilation and the excretion of sodium and water.
5. In the context of the RAAS pathway, what is the role of Angiotensin-Converting Enzyme
(ACE)?
A. Inhibits the release of renin from the kidneys
B. Converts Angiotensinogen to Angiotensin I
C. Directly stimulates the release of aldosterone
D. Converts Angiotensin I to Angiotensin II
Answer: D
Conceptual Explanation: ACE is primarily responsible for converting the inactive
Angiotensin I into the potent vasoconstrictor Angiotensin II.
6. Which clinical manifestation is most characteristic of Right-sided Heart Failure?
A. Peripheral edema and jugular venous distention
B. Pulmonary crackles and dyspnea
C. Pink frothy sputum
D. Paroxysmal nocturnal dyspnea
Answer: A
