NURS 6700 Advanced Pathophysiology – Graduate Nursing Program –
Complete Exam Questions and Answers Preparation Material
Below are 50 original, graduate-level pathophysiology questions for NURS 6700. These will reflect the
current 2026 understanding of disease mechanisms and clinical applications.
Introduction
This document outlines the structure of the exam and provides a clear introduction to the course
assessment format. It explains the types of questions included, grading criteria, time allocation, and key
expectations for successful completion.
The content helps students understand how the exam is organized and how to prepare effectively based
on the assessment components and evaluation standards.
1
A 68-year-old patient with type 2 diabetes presents with progressive fatigue, anorexia, and peripheral
edema. Laboratory studies reveal elevated BUN and creatinine, proteinuria, and glycated albumin
levels. Kidney biopsy demonstrates thickened glomerular basement membranes with mesangial
expansion and Kimmelstiel-Wilson nodules. Which pathophysiological mechanism most directly
contributes to the progression from early glomerular hyperfiltration to overt diabetic nephropathy in
this patient?
A. Activation of the polyol pathway leading to intracellular sorbitol accumulation B. Advanced glycation
end-product (AGE) formation and receptor-mediated oxidative stress C. Increased activation of protein
kinase C via diacylglycerol synthesis D. Enhanced expression of GLUT2 transporters in proximal tubular
cells
Correct Answer: B
Explanation: Advanced glycation end-products (AGEs) form through non-enzymatic glycation of
proteins, lipids, and nucleic acids in the presence of chronic hyperglycemia. AGEs bind to their receptor
RAGE on mesangial cells, podocytes, and endothelial cells, activating NF-κB signaling and generating
reactive oxygen species. This perpetuates a cycle of inflammation, extracellular matrix expansion, and
progressive glomerulosclerosis that characterizes diabetic nephropathy progression from hyperfiltration
to end-stage renal disease.
2
A 54-year-old woman with a 30-pack-year smoking history presents with progressive dyspnea on
exertion. Pulmonary function tests demonstrate an FEV₁/FVC ratio of 0.62, reduced FEV₁ with minimal
bronchodilator response, and decreased diffusion capacity. CT imaging reveals upper lobe-
predominant emphysema with multiple bullae. Which molecular mechanism involving protease-
,antiprotease imbalance best explains the parenchymal destruction pattern observed in this patient's
emphysema phenotype?
A. Neutrophil elastase-mediated degradation of type IV collagen in alveolar basement membranes B.
Macrophage-derived matrix metalloproteinase-12 (MMP-12) activation causing elastic fiber
fragmentation C. Alpha-1 antitrypsin deficiency leading to unopposed serine protease activity in alveolar
spaces D. Cysteine protease cathepsin G activation destroying type I collagen in interstitial matrix
Correct Answer: B
Explanation: In cigarette smoke-induced emphysema, macrophages are recruited to alveolar spaces and
release matrix metalloproteinase-12 (MMP-12), which specifically degrades elastin fibers in alveolar
walls. This protease-antiprotease imbalance, combined with oxidative stress from cigarette smoke,
causes progressive elastic fiber fragmentation and loss of alveolar structural integrity. The upper lobe
predominance reflects greater ventilation-perfusion ratios and macrophage accumulation in these
regions during smoking.
3
A 45-year-old patient with systemic lupus erythematosus develops acute-onset hematuria,
proteinuria, and rising creatinine. Renal biopsy reveals "wire loop" lesions, subendothelial immune
complex deposits, and positive staining for C1q, C4d, and C3 on immunofluorescence. Which
complement activation pathway is primarily responsible for the glomerular injury pattern observed in
this patient?
A. Alternative pathway activation via properdin stabilization of C3 convertase B. Classical pathway
activation initiated by C1q binding to immune complexes C. Lectin pathway activation through mannose-
binding lectin recognition of apoptotic cells D. Terminal pathway dysregulation causing uncontrolled
C5b-9 membrane attack complex formation
Correct Answer: B
Explanation: In lupus nephritis, circulating anti-dsDNA and other autoantibodies form immune
complexes that deposit in glomerular subendothelial spaces. These immune complexes activate the
classical complement pathway through C1q binding to Fc regions of antibodies, generating C4d and C3d
deposition. This sequential activation produces C5b-9 membrane attack complexes that mediate
glomerular endothelial injury, mesangial proliferation, and the characteristic "wire loop" appearance
representing swollen endothelial cells with subendothelial deposits.
4
A 72-year-old patient with heart failure with preserved ejection fraction (HFpEF) demonstrates
exercise intolerance, elevated left ventricular filling pressures, and normal LVEF of 58%.
Echocardiography reveals concentric left ventricular remodeling, left atrial enlargement, and elevated
E/e' ratio. Which integrated pathophysiological mechanism best explains the diastolic dysfunction and
impaired exercise reserve in this patient?
, A. Titin isoform shift toward compliant N2BA domain expression B. Increased cardiomyocyte stiffness
from hypophosphorylated phospholamban C. Systemic microvascular inflammation causing endothelial
dysfunction and reduced nitric oxide bioavailability D. Sarcoplasmic reticulum calcium leak via ryanodine
receptor oxidation
Correct Answer: C
Explanation: Current understanding of HFpEF emphasizes a systemic inflammatory state (often
comorbid with obesity, diabetes, or hypertension) that induces coronary microvascular endothelial
dysfunction. Reduced nitric oxide bioavailability and increased reactive oxygen species impair
cardiomyocyte relaxation and increase passive stiffness through titin oxidation and collagen deposition.
This systemic-microvascular paradigm explains why comorbidity burden strongly predicts HFpEF
development and why therapies targeting neurohormonal activation (effective in HFrEF) have limited
efficacy in HFpEF.
5
A patient with sepsis develops acute respiratory distress syndrome (ARDS) characterized by bilateral
infiltrates, severe hypoxemia requiring mechanical ventilation, and decreased lung compliance.
Bronchoalveolar lavage reveals neutrophilic infiltrates, proteinaceous edema fluid, and elevated
inflammatory cytokines. Which pathophysiological sequence best describes the progression from
alveolar-capillary barrier injury to fibroproliferation in ARDS?
A. Type I pneumocyte necrosis → hyaline membrane formation → type II pneumocyte hyperplasia →
fibroblast activation B. Endothelial activation → neutrophil sequestration → protein-rich edema → fibrin
deposition → organizing pneumonia C. Macrophage M1 polarization → IL-1β and TNF-α release →
alveolar flooding → collagen deposition D. Surfactant protein A deficiency → alveolar collapse →
mechanical stress → epithelial-mesenchymal transition
Correct Answer: B
Explanation: ARDS pathophysiology begins with systemic inflammation activating pulmonary
endothelium, upregulating adhesion molecules (ICAM-1, VCAM-1, P-selectin) that sequester neutrophils
in pulmonary capillaries. Activated neutrophils release proteases, oxidants, and inflammatory mediators
that increase capillary permeability, causing protein-rich edema that inactivates surfactant and forms
hyaline membranes. The exudative phase transitions to proliferative/ fibrotic phases through fibrin
deposition, fibroblast activation, and organizing pneumonia that can progress to established fibrosis if
injury persists.
6
A 38-year-old woman presents with relapsing-remitting neurological symptoms including optic
neuritis, limb weakness, and sensory disturbances. MRI demonstrates periventricular white matter
lesions oriented perpendicular to ventricles ("Dawson's fingers"). Cerebrospinal fluid analysis reveals
Complete Exam Questions and Answers Preparation Material
Below are 50 original, graduate-level pathophysiology questions for NURS 6700. These will reflect the
current 2026 understanding of disease mechanisms and clinical applications.
Introduction
This document outlines the structure of the exam and provides a clear introduction to the course
assessment format. It explains the types of questions included, grading criteria, time allocation, and key
expectations for successful completion.
The content helps students understand how the exam is organized and how to prepare effectively based
on the assessment components and evaluation standards.
1
A 68-year-old patient with type 2 diabetes presents with progressive fatigue, anorexia, and peripheral
edema. Laboratory studies reveal elevated BUN and creatinine, proteinuria, and glycated albumin
levels. Kidney biopsy demonstrates thickened glomerular basement membranes with mesangial
expansion and Kimmelstiel-Wilson nodules. Which pathophysiological mechanism most directly
contributes to the progression from early glomerular hyperfiltration to overt diabetic nephropathy in
this patient?
A. Activation of the polyol pathway leading to intracellular sorbitol accumulation B. Advanced glycation
end-product (AGE) formation and receptor-mediated oxidative stress C. Increased activation of protein
kinase C via diacylglycerol synthesis D. Enhanced expression of GLUT2 transporters in proximal tubular
cells
Correct Answer: B
Explanation: Advanced glycation end-products (AGEs) form through non-enzymatic glycation of
proteins, lipids, and nucleic acids in the presence of chronic hyperglycemia. AGEs bind to their receptor
RAGE on mesangial cells, podocytes, and endothelial cells, activating NF-κB signaling and generating
reactive oxygen species. This perpetuates a cycle of inflammation, extracellular matrix expansion, and
progressive glomerulosclerosis that characterizes diabetic nephropathy progression from hyperfiltration
to end-stage renal disease.
2
A 54-year-old woman with a 30-pack-year smoking history presents with progressive dyspnea on
exertion. Pulmonary function tests demonstrate an FEV₁/FVC ratio of 0.62, reduced FEV₁ with minimal
bronchodilator response, and decreased diffusion capacity. CT imaging reveals upper lobe-
predominant emphysema with multiple bullae. Which molecular mechanism involving protease-
,antiprotease imbalance best explains the parenchymal destruction pattern observed in this patient's
emphysema phenotype?
A. Neutrophil elastase-mediated degradation of type IV collagen in alveolar basement membranes B.
Macrophage-derived matrix metalloproteinase-12 (MMP-12) activation causing elastic fiber
fragmentation C. Alpha-1 antitrypsin deficiency leading to unopposed serine protease activity in alveolar
spaces D. Cysteine protease cathepsin G activation destroying type I collagen in interstitial matrix
Correct Answer: B
Explanation: In cigarette smoke-induced emphysema, macrophages are recruited to alveolar spaces and
release matrix metalloproteinase-12 (MMP-12), which specifically degrades elastin fibers in alveolar
walls. This protease-antiprotease imbalance, combined with oxidative stress from cigarette smoke,
causes progressive elastic fiber fragmentation and loss of alveolar structural integrity. The upper lobe
predominance reflects greater ventilation-perfusion ratios and macrophage accumulation in these
regions during smoking.
3
A 45-year-old patient with systemic lupus erythematosus develops acute-onset hematuria,
proteinuria, and rising creatinine. Renal biopsy reveals "wire loop" lesions, subendothelial immune
complex deposits, and positive staining for C1q, C4d, and C3 on immunofluorescence. Which
complement activation pathway is primarily responsible for the glomerular injury pattern observed in
this patient?
A. Alternative pathway activation via properdin stabilization of C3 convertase B. Classical pathway
activation initiated by C1q binding to immune complexes C. Lectin pathway activation through mannose-
binding lectin recognition of apoptotic cells D. Terminal pathway dysregulation causing uncontrolled
C5b-9 membrane attack complex formation
Correct Answer: B
Explanation: In lupus nephritis, circulating anti-dsDNA and other autoantibodies form immune
complexes that deposit in glomerular subendothelial spaces. These immune complexes activate the
classical complement pathway through C1q binding to Fc regions of antibodies, generating C4d and C3d
deposition. This sequential activation produces C5b-9 membrane attack complexes that mediate
glomerular endothelial injury, mesangial proliferation, and the characteristic "wire loop" appearance
representing swollen endothelial cells with subendothelial deposits.
4
A 72-year-old patient with heart failure with preserved ejection fraction (HFpEF) demonstrates
exercise intolerance, elevated left ventricular filling pressures, and normal LVEF of 58%.
Echocardiography reveals concentric left ventricular remodeling, left atrial enlargement, and elevated
E/e' ratio. Which integrated pathophysiological mechanism best explains the diastolic dysfunction and
impaired exercise reserve in this patient?
, A. Titin isoform shift toward compliant N2BA domain expression B. Increased cardiomyocyte stiffness
from hypophosphorylated phospholamban C. Systemic microvascular inflammation causing endothelial
dysfunction and reduced nitric oxide bioavailability D. Sarcoplasmic reticulum calcium leak via ryanodine
receptor oxidation
Correct Answer: C
Explanation: Current understanding of HFpEF emphasizes a systemic inflammatory state (often
comorbid with obesity, diabetes, or hypertension) that induces coronary microvascular endothelial
dysfunction. Reduced nitric oxide bioavailability and increased reactive oxygen species impair
cardiomyocyte relaxation and increase passive stiffness through titin oxidation and collagen deposition.
This systemic-microvascular paradigm explains why comorbidity burden strongly predicts HFpEF
development and why therapies targeting neurohormonal activation (effective in HFrEF) have limited
efficacy in HFpEF.
5
A patient with sepsis develops acute respiratory distress syndrome (ARDS) characterized by bilateral
infiltrates, severe hypoxemia requiring mechanical ventilation, and decreased lung compliance.
Bronchoalveolar lavage reveals neutrophilic infiltrates, proteinaceous edema fluid, and elevated
inflammatory cytokines. Which pathophysiological sequence best describes the progression from
alveolar-capillary barrier injury to fibroproliferation in ARDS?
A. Type I pneumocyte necrosis → hyaline membrane formation → type II pneumocyte hyperplasia →
fibroblast activation B. Endothelial activation → neutrophil sequestration → protein-rich edema → fibrin
deposition → organizing pneumonia C. Macrophage M1 polarization → IL-1β and TNF-α release →
alveolar flooding → collagen deposition D. Surfactant protein A deficiency → alveolar collapse →
mechanical stress → epithelial-mesenchymal transition
Correct Answer: B
Explanation: ARDS pathophysiology begins with systemic inflammation activating pulmonary
endothelium, upregulating adhesion molecules (ICAM-1, VCAM-1, P-selectin) that sequester neutrophils
in pulmonary capillaries. Activated neutrophils release proteases, oxidants, and inflammatory mediators
that increase capillary permeability, causing protein-rich edema that inactivates surfactant and forms
hyaline membranes. The exudative phase transitions to proliferative/ fibrotic phases through fibrin
deposition, fibroblast activation, and organizing pneumonia that can progress to established fibrosis if
injury persists.
6
A 38-year-old woman presents with relapsing-remitting neurological symptoms including optic
neuritis, limb weakness, and sensory disturbances. MRI demonstrates periventricular white matter
lesions oriented perpendicular to ventricles ("Dawson's fingers"). Cerebrospinal fluid analysis reveals
