NSG 530 — Advanced Pathophysiology | Exam 2 (2026/2027) Wilkes University | Graduate Nursing
NSG 530 / NSG530 Exam 2 (Latest )
Advanced Pathophysiology
Questions and Verified Answers | 100% Correct | Grade A
Wilkes University — Graduate Nursing & Advanced Practice Education
Aligned with Wilkes University NSG 530 Course Syllabus, AACN Essentials of Master's Education, and Advanced Pathophysiology
Competencies (2026/2027 Edition)
Section Topic Q Range Items
1 Cardiovascular Pathophysiology Q1 – Q20 20
2 Pulmonary Pathophysiology Q21 – Q35 15
3 Renal & Genitourinary Pathophysiology Q36 – Q50 15
4 Endocrine & Metabolic Pathophysiology Q51 – Q65 15
5 Gastrointestinal & Hepatic Pathophysiology Q66 – Q77 12
6 Neurological Pathophysiology Q78 – Q90 13
7 Multisystem & Integrative Pathophysiology Q91 – Q100 10
Total Q1 – Q100 100
Cognitive Distribution: 20% recall · 50% application · 30% analysis (clinical reasoning, pathophysiological mechanisms, laboratory
interpretation). Question Style: 75% scenario-based · 25% direct knowledge. Format: 4-option single-best-answer MCQs with verified
rationale grounded in NSG 530 curriculum, AACN Essentials, and advanced pathophysiology competencies.
Special Inclusions: 15 clinical-reasoning scenarios · 10 laboratory/diagnostic interpretation items · 10 mechanism/process items.
Section 1: Cardiovascular Pathophysiology
Q1: A 58-year-old male with hyperlipidemia and a 30-pack-year smoking history asks how atherosclerotic
plaques initially form in his coronary arteries. Which pathophysiological event is the EARLIEST recognizable
step in atherogenesis according to the response-to-injury hypothesis?
Type: recall | Cognitive Level: recall
A. Proliferation of smooth muscle cells into the intima producing a fibrous cap
B. Endothelial injury with increased permeability, leukocyte adhesion, and oxidized LDL uptake by
macrophages (foam cell formation) *[CORRECT]*
C. Rupture of the vasa vasorum leading to intraplaque hemorrhage and luminal narrowing
D. Calcification of the tunica media (Monckeberg sclerosis) producing vessel stiffness
Correct Answer: B
Rationale: Per the NSG 530 curriculum and the response-to-injury hypothesis, atherosclerosis begins with endothelial
dysfunction/injury that increases permeability and permits LDL infiltration. Monocytes adhere (VCAM-1), migrate into the
intima, become macrophages, and engulf oxidized LDL to form foam cells—the hallmark of the fatty streak, the earliest lesion.
Smooth muscle proliferation (A) and fibrous cap formation occur later. Plaque hemorrhage (C) and Monckeberg medial
calcification (D) represent advanced or unrelated pathology.
100% Verified Correct | Grade A | Latest 2026/2027 Edition Page 1
,NSG 530 — Advanced Pathophysiology | Exam 2 (2026/2027) Wilkes University | Graduate Nursing
Q2: A 62-year-old man with known three-vessel coronary artery disease reports stable angina that occurs
predictably when he walks two blocks uphill and is relieved by 2 minutes of rest and one sublingual
nitroglycerin. Which mechanism BEST explains the relationship between exertion and his chest pain?
Type: scenario | Cognitive Level: application
A. Transient platelet aggregation producing intermittent coronary occlusion at rest
B. Fixed atherosclerotic stenosis limiting coronary flow reserve so that demand exceeds supply during exertion
*[CORRECT]*
C. Vasospasm of an epicardial coronary artery triggered by cold or stress (Prinzmetal angina)
D. Acute plaque rupture with non-occlusive thrombus causing rest pain
Correct Answer: B
Rationale: Stable angina reflects a fixed, flow-limiting atherosclerotic stenosis (>70% of the lumen). At rest, myocardial oxygen
supply meets demand; with exertion, demand rises (rate-pressure product) but flow cannot increase proportionally because the
stenotic segment has exhausted its vasodilatory reserve, producing transient subendocardial ischemia and angina that resolves
with rest or nitrates. Platelet aggregation (A) and acute plaque rupture (D) characterize unstable angina/ACS. Vasospasm (C)
defines Prinzmetal (variant) angina, which typically occurs at rest, not with predictable exertion.
Q3: A 55-year-old woman presents with 90 minutes of crushing substernal chest pain, diaphoresis, and
nausea. ECG shows 2 mm ST-segment elevation in leads II, III, and aVF. Initial cardiac troponin I is 0.04
ng/mL (reference <0.04). Which interpretation is MOST accurate regarding her biomarker profile?
Type: lab | Cognitive Level: analysis
A. The normal troponin excludes acute myocardial infarction; the ECG changes are likely early repolarization
B. Troponin may be normal in the first 1–3 hours after symptom onset; ST elevation itself establishes STEMI
activation of the catheterization lab *[CORRECT]*
C. Troponin is too insensitive; creatine kinase-MB should be obtained to confirm MI
D. Troponin rises only in unstable angina, not in STEMI, so the ECG is misleading
Correct Answer: B
Rationale: Cardiac troponin I/T begins to rise 2–4 hours after myocardial necrosis, peaks at ~24 hours, and remains elevated for
7–10 days. In the first hour, troponin is frequently still within the reference range; therefore, a single normal value does NOT
exclude MI. In this patient, the 2 mm ST elevation in II/III/aVF is diagnostic of an acute inferior STEMI, meeting criteria for
immediate reperfusion (PCI within 90 minutes door-to-balloon) regardless of initial troponin. CK-MB (C) is no longer preferred
because of lower specificity and later rise. Troponin is the most sensitive and specific biomarker for myocardial injury and is
central to the universal definition of MI.
100% Verified Correct | Grade A | Latest 2026/2027 Edition Page 2
,NSG 530 — Advanced Pathophysiology | Exam 2 (2026/2027) Wilkes University | Graduate Nursing
Q4: A 67-year-old male is admitted with an anterior STEMI and undergoes primary PCI with stenting of the
proximal LAD. Six hours later he develops acute severe dyspnea, bilateral crackles, a new loud apical
holosystolic murmur, and cardiogenic shock. Which mechanical complication of acute MI is MOST likely?
Type: scenario | Cognitive Level: application
A. Rupture of the ventricular free wall producing cardiac tamponade
B. Acute papillary muscle rupture causing severe mitral regurgitation
C. Interventricular septal rupture creating a left-to-right shunt *[CORRECT]*
D. Left ventricular aneurysm with mural thrombus formation
Correct Answer: C
Rationale: Post-MI ventricular septal rupture (VSR) typically occurs 3–5 days after transmural infarction but can occur earlier. It
produces a harsh, loud holosystolic murmur at the lower left sternal border with a thrill, rapid pulmonary edema, and a step-up in
oxygen saturation from the right atrium to the right ventricle (left-to-right shunt). Papillary muscle rupture (B) causes severe MR
with an apical murmur and is more common with inferior MI (right coronary artery supply). Free wall rupture (A) causes
tamponade and electromechanical dissociation, typically fatal within minutes. LV aneurysm (D) is a late (weeks to months)
complication presenting with heart failure, thrombus, or persistent ST elevation, not acute shock.
Q5: Following a large anterior STEMI, a 70-year-old patient undergoes serial echocardiography over 6 weeks.
Which sequence BEST describes the pathophysiological ventricular remodeling that places him at highest risk
for progression to heart failure?
Type: mechanism | Cognitive Level: analysis
A. Early concentric hypertrophy followed by thinning of the posterior wall
B. Infarct expansion (thinning and dilation of the infarcted segment) followed by global LV dilation with
increased wall stress via Laplace's law *[CORRECT]*
C. Immediate decrease in LV end-diastolic volume with compensatory bradycardia
D. Replacement of necrotic myocardium by regenerating cardiomyocytes restoring systolic function
Correct Answer: B
Rationale: Post-MI remodeling is mediated by activation of the renin-angiotensin-aldosterone system and sympathetic nervous
system, matrix metalloproteinase-mediated extracellular matrix degradation, and myocyte sliding within the infarct segment. The
result is infarct expansion (thinning and dilation of the necrotic segment) followed by global LV dilation. Increased radius raises
wall stress per Laplace's law (stress = P × r / 2h), creating a vicious cycle of further dilation, decreased ejection fraction, and
progression to heart failure. This is the rationale for early ACE-inhibitor/ARB and beta-blocker therapy to attenuate remodeling.
Cardiomyocytes are terminally differentiated and do not regenerate in meaningful numbers (D).
100% Verified Correct | Grade A | Latest 2026/2027 Edition Page 3
, NSG 530 — Advanced Pathophysiology | Exam 2 (2026/2027) Wilkes University | Graduate Nursing
Q6: Which pathophysiological mechanism is the central initiating abnormality in PRIMARY (essential)
hypertension?
Type: recall | Cognitive Level: recall
A. Increased renal renin secretion producing exclusively volume-mediated hypertension
B. Inability of the kidneys to excrete sodium adequately at normal perfusion pressures, leading to volume
expansion, increased peripheral resistance, and impaired baroreflex buffering *[CORRECT]*
C. Single-gene mutation in the epithelial sodium channel causing lifelong volume overload
D. Fibromuscular dysplasia of the renal artery producing renovascular hypertension
Correct Answer: B
Rationale: The Guyton hypothesis, central to NSG 530 pathophysiology, holds that primary hypertension arises from a renal
pressure-natriuresis defect: the kidney cannot excrete sodium normally at prevailing blood pressures, so pressure must rise to
maintain sodium balance. This is compounded by increased sympathetic tone, RAAS activation, vascular remodeling, and
impaired baroreflex sensitivity. Pure renin excess (A) and single-gene ENaC mutations (C) characterize secondary hypertension.
Fibromuscular dysplasia (D) is a cause of secondary renovascular hypertension, not primary.
Q7: A 32-year-old woman with previously controlled hypertension of 130/80 now presents with BP 180/110,
headache, and a new abdominal bruit. Renal Doppler shows elevated peak systolic velocity at the renal hilum.
Which mechanism accounts for her refractory hypertension?
Type: scenario | Cognitive Level: application
A. Atheromatous unilateral renal artery stenosis causing reduced perfusion pressure to the affected kidney,
triggering RAAS activation and systemic angiotensin II-mediated vasoconstriction and aldosterone-mediated
volume expansion *[CORRECT]*
B. Bilateral adrenal hyperplasia producing excess aldosterone independent of renin
C. Aortic coarctation producing upper-extremity hypertension with lower-extremity hypotension
D. Pheochromocytoma causing episodic catecholamine surges
Correct Answer: A
Rationale: Renovascular hypertension from renal artery stenosis (commonly atherosclerosis in older adults or fibromuscular
dysplasia in young women) reduces perfusion pressure to the juxtaglomerular apparatus of the affected kidney, which
misinterprets this as systemic hypovolemia and secretes renin. Angiotensin II causes vasoconstriction and efferent arteriolar
constriction, while aldosterone retains sodium and water, raising systemic BP. The contralateral kidney exhibits pressure
natriuresis, but the affected kidney sustains the elevated BP. The new abdominal bruit and Doppler findings are classic.
Aldosterone excess without renin (B) = Conn syndrome; coarctation (C) shows radio-femoral delay; pheochromocytoma (D)
shows episodic spells with headache/sweating/palpitations.
100% Verified Correct | Grade A | Latest 2026/2027 Edition Page 4
NSG 530 / NSG530 Exam 2 (Latest )
Advanced Pathophysiology
Questions and Verified Answers | 100% Correct | Grade A
Wilkes University — Graduate Nursing & Advanced Practice Education
Aligned with Wilkes University NSG 530 Course Syllabus, AACN Essentials of Master's Education, and Advanced Pathophysiology
Competencies (2026/2027 Edition)
Section Topic Q Range Items
1 Cardiovascular Pathophysiology Q1 – Q20 20
2 Pulmonary Pathophysiology Q21 – Q35 15
3 Renal & Genitourinary Pathophysiology Q36 – Q50 15
4 Endocrine & Metabolic Pathophysiology Q51 – Q65 15
5 Gastrointestinal & Hepatic Pathophysiology Q66 – Q77 12
6 Neurological Pathophysiology Q78 – Q90 13
7 Multisystem & Integrative Pathophysiology Q91 – Q100 10
Total Q1 – Q100 100
Cognitive Distribution: 20% recall · 50% application · 30% analysis (clinical reasoning, pathophysiological mechanisms, laboratory
interpretation). Question Style: 75% scenario-based · 25% direct knowledge. Format: 4-option single-best-answer MCQs with verified
rationale grounded in NSG 530 curriculum, AACN Essentials, and advanced pathophysiology competencies.
Special Inclusions: 15 clinical-reasoning scenarios · 10 laboratory/diagnostic interpretation items · 10 mechanism/process items.
Section 1: Cardiovascular Pathophysiology
Q1: A 58-year-old male with hyperlipidemia and a 30-pack-year smoking history asks how atherosclerotic
plaques initially form in his coronary arteries. Which pathophysiological event is the EARLIEST recognizable
step in atherogenesis according to the response-to-injury hypothesis?
Type: recall | Cognitive Level: recall
A. Proliferation of smooth muscle cells into the intima producing a fibrous cap
B. Endothelial injury with increased permeability, leukocyte adhesion, and oxidized LDL uptake by
macrophages (foam cell formation) *[CORRECT]*
C. Rupture of the vasa vasorum leading to intraplaque hemorrhage and luminal narrowing
D. Calcification of the tunica media (Monckeberg sclerosis) producing vessel stiffness
Correct Answer: B
Rationale: Per the NSG 530 curriculum and the response-to-injury hypothesis, atherosclerosis begins with endothelial
dysfunction/injury that increases permeability and permits LDL infiltration. Monocytes adhere (VCAM-1), migrate into the
intima, become macrophages, and engulf oxidized LDL to form foam cells—the hallmark of the fatty streak, the earliest lesion.
Smooth muscle proliferation (A) and fibrous cap formation occur later. Plaque hemorrhage (C) and Monckeberg medial
calcification (D) represent advanced or unrelated pathology.
100% Verified Correct | Grade A | Latest 2026/2027 Edition Page 1
,NSG 530 — Advanced Pathophysiology | Exam 2 (2026/2027) Wilkes University | Graduate Nursing
Q2: A 62-year-old man with known three-vessel coronary artery disease reports stable angina that occurs
predictably when he walks two blocks uphill and is relieved by 2 minutes of rest and one sublingual
nitroglycerin. Which mechanism BEST explains the relationship between exertion and his chest pain?
Type: scenario | Cognitive Level: application
A. Transient platelet aggregation producing intermittent coronary occlusion at rest
B. Fixed atherosclerotic stenosis limiting coronary flow reserve so that demand exceeds supply during exertion
*[CORRECT]*
C. Vasospasm of an epicardial coronary artery triggered by cold or stress (Prinzmetal angina)
D. Acute plaque rupture with non-occlusive thrombus causing rest pain
Correct Answer: B
Rationale: Stable angina reflects a fixed, flow-limiting atherosclerotic stenosis (>70% of the lumen). At rest, myocardial oxygen
supply meets demand; with exertion, demand rises (rate-pressure product) but flow cannot increase proportionally because the
stenotic segment has exhausted its vasodilatory reserve, producing transient subendocardial ischemia and angina that resolves
with rest or nitrates. Platelet aggregation (A) and acute plaque rupture (D) characterize unstable angina/ACS. Vasospasm (C)
defines Prinzmetal (variant) angina, which typically occurs at rest, not with predictable exertion.
Q3: A 55-year-old woman presents with 90 minutes of crushing substernal chest pain, diaphoresis, and
nausea. ECG shows 2 mm ST-segment elevation in leads II, III, and aVF. Initial cardiac troponin I is 0.04
ng/mL (reference <0.04). Which interpretation is MOST accurate regarding her biomarker profile?
Type: lab | Cognitive Level: analysis
A. The normal troponin excludes acute myocardial infarction; the ECG changes are likely early repolarization
B. Troponin may be normal in the first 1–3 hours after symptom onset; ST elevation itself establishes STEMI
activation of the catheterization lab *[CORRECT]*
C. Troponin is too insensitive; creatine kinase-MB should be obtained to confirm MI
D. Troponin rises only in unstable angina, not in STEMI, so the ECG is misleading
Correct Answer: B
Rationale: Cardiac troponin I/T begins to rise 2–4 hours after myocardial necrosis, peaks at ~24 hours, and remains elevated for
7–10 days. In the first hour, troponin is frequently still within the reference range; therefore, a single normal value does NOT
exclude MI. In this patient, the 2 mm ST elevation in II/III/aVF is diagnostic of an acute inferior STEMI, meeting criteria for
immediate reperfusion (PCI within 90 minutes door-to-balloon) regardless of initial troponin. CK-MB (C) is no longer preferred
because of lower specificity and later rise. Troponin is the most sensitive and specific biomarker for myocardial injury and is
central to the universal definition of MI.
100% Verified Correct | Grade A | Latest 2026/2027 Edition Page 2
,NSG 530 — Advanced Pathophysiology | Exam 2 (2026/2027) Wilkes University | Graduate Nursing
Q4: A 67-year-old male is admitted with an anterior STEMI and undergoes primary PCI with stenting of the
proximal LAD. Six hours later he develops acute severe dyspnea, bilateral crackles, a new loud apical
holosystolic murmur, and cardiogenic shock. Which mechanical complication of acute MI is MOST likely?
Type: scenario | Cognitive Level: application
A. Rupture of the ventricular free wall producing cardiac tamponade
B. Acute papillary muscle rupture causing severe mitral regurgitation
C. Interventricular septal rupture creating a left-to-right shunt *[CORRECT]*
D. Left ventricular aneurysm with mural thrombus formation
Correct Answer: C
Rationale: Post-MI ventricular septal rupture (VSR) typically occurs 3–5 days after transmural infarction but can occur earlier. It
produces a harsh, loud holosystolic murmur at the lower left sternal border with a thrill, rapid pulmonary edema, and a step-up in
oxygen saturation from the right atrium to the right ventricle (left-to-right shunt). Papillary muscle rupture (B) causes severe MR
with an apical murmur and is more common with inferior MI (right coronary artery supply). Free wall rupture (A) causes
tamponade and electromechanical dissociation, typically fatal within minutes. LV aneurysm (D) is a late (weeks to months)
complication presenting with heart failure, thrombus, or persistent ST elevation, not acute shock.
Q5: Following a large anterior STEMI, a 70-year-old patient undergoes serial echocardiography over 6 weeks.
Which sequence BEST describes the pathophysiological ventricular remodeling that places him at highest risk
for progression to heart failure?
Type: mechanism | Cognitive Level: analysis
A. Early concentric hypertrophy followed by thinning of the posterior wall
B. Infarct expansion (thinning and dilation of the infarcted segment) followed by global LV dilation with
increased wall stress via Laplace's law *[CORRECT]*
C. Immediate decrease in LV end-diastolic volume with compensatory bradycardia
D. Replacement of necrotic myocardium by regenerating cardiomyocytes restoring systolic function
Correct Answer: B
Rationale: Post-MI remodeling is mediated by activation of the renin-angiotensin-aldosterone system and sympathetic nervous
system, matrix metalloproteinase-mediated extracellular matrix degradation, and myocyte sliding within the infarct segment. The
result is infarct expansion (thinning and dilation of the necrotic segment) followed by global LV dilation. Increased radius raises
wall stress per Laplace's law (stress = P × r / 2h), creating a vicious cycle of further dilation, decreased ejection fraction, and
progression to heart failure. This is the rationale for early ACE-inhibitor/ARB and beta-blocker therapy to attenuate remodeling.
Cardiomyocytes are terminally differentiated and do not regenerate in meaningful numbers (D).
100% Verified Correct | Grade A | Latest 2026/2027 Edition Page 3
, NSG 530 — Advanced Pathophysiology | Exam 2 (2026/2027) Wilkes University | Graduate Nursing
Q6: Which pathophysiological mechanism is the central initiating abnormality in PRIMARY (essential)
hypertension?
Type: recall | Cognitive Level: recall
A. Increased renal renin secretion producing exclusively volume-mediated hypertension
B. Inability of the kidneys to excrete sodium adequately at normal perfusion pressures, leading to volume
expansion, increased peripheral resistance, and impaired baroreflex buffering *[CORRECT]*
C. Single-gene mutation in the epithelial sodium channel causing lifelong volume overload
D. Fibromuscular dysplasia of the renal artery producing renovascular hypertension
Correct Answer: B
Rationale: The Guyton hypothesis, central to NSG 530 pathophysiology, holds that primary hypertension arises from a renal
pressure-natriuresis defect: the kidney cannot excrete sodium normally at prevailing blood pressures, so pressure must rise to
maintain sodium balance. This is compounded by increased sympathetic tone, RAAS activation, vascular remodeling, and
impaired baroreflex sensitivity. Pure renin excess (A) and single-gene ENaC mutations (C) characterize secondary hypertension.
Fibromuscular dysplasia (D) is a cause of secondary renovascular hypertension, not primary.
Q7: A 32-year-old woman with previously controlled hypertension of 130/80 now presents with BP 180/110,
headache, and a new abdominal bruit. Renal Doppler shows elevated peak systolic velocity at the renal hilum.
Which mechanism accounts for her refractory hypertension?
Type: scenario | Cognitive Level: application
A. Atheromatous unilateral renal artery stenosis causing reduced perfusion pressure to the affected kidney,
triggering RAAS activation and systemic angiotensin II-mediated vasoconstriction and aldosterone-mediated
volume expansion *[CORRECT]*
B. Bilateral adrenal hyperplasia producing excess aldosterone independent of renin
C. Aortic coarctation producing upper-extremity hypertension with lower-extremity hypotension
D. Pheochromocytoma causing episodic catecholamine surges
Correct Answer: A
Rationale: Renovascular hypertension from renal artery stenosis (commonly atherosclerosis in older adults or fibromuscular
dysplasia in young women) reduces perfusion pressure to the juxtaglomerular apparatus of the affected kidney, which
misinterprets this as systemic hypovolemia and secretes renin. Angiotensin II causes vasoconstriction and efferent arteriolar
constriction, while aldosterone retains sodium and water, raising systemic BP. The contralateral kidney exhibits pressure
natriuresis, but the affected kidney sustains the elevated BP. The new abdominal bruit and Doppler findings are classic.
Aldosterone excess without renin (B) = Conn syndrome; coarctation (C) shows radio-femoral delay; pheochromocytoma (D)
shows episodic spells with headache/sweating/palpitations.
100% Verified Correct | Grade A | Latest 2026/2027 Edition Page 4
