NR 547 ADVANCED PATHOPHYSIOLOGY EXAM
QUESTIONS AND ANSWERS 2026/2027 | 300 COMPLETE
STUDY GUIDE
CORE DOMAINS:
• Cellular Biology and Adaptation
• Genetics and Genetic Disorders
• Immunology and Immune-Mediated Disorders
• Inflammation and Wound Healing
• Fluid, Electrolyte, and Acid-Base Homeostasis
• Cardiovascular Pathophysiology
• Respiratory Pathophysiology
• Renal and Genitourinary Pathophysiology
• Neurological Pathophysiology
• Endocrine and Metabolic Pathophysiology
INTRODUCTION:
This comprehensive examination is designed to evaluate the advanced
pathophysiological knowledge, clinical reasoning, and diagnostic acumen required
for graduate-level nursing practice. It assesses mastery of cellular adaptation,
genetic mechanisms, immune responses, inflammation, and organ system
dysfunction across cardiovascular, respiratory, renal, neurological, and endocrine
domains. Through multiple-choice and scenario-based questions, the exam
emphasizes real-world application, critical thinking, and evidence-based decision-
making. The test bank reflects the rigor of graduate pathophysiology education
and prepares candidates for advanced practice, certification, and doctoral-level
study.
,SECTION ONE: QUESTIONS 1–300
1. A cell is exposed to a chronic, sublethal stressor that results in an increased
number of normal-appearing organelles and increased functional capacity. This
adaptive response is best described as:
A. Atrophy
B. Metaplasia
C. Hypertrophy
D. Dysplasia
RATIONALE: Hypertrophy is an increase in cell size and functional capacity in
response to increased demand or stress. It involves synthesis of more structural
components and organelles without cell division. Atrophy is shrinkage, metaplasia
is replacement of one cell type with another, and dysplasia is disordered growth.
2. A 55-year-old male with a 40-pack-year smoking history develops squamous
cell carcinoma of the lung. The transformation of normal bronchial epithelium
to squamous epithelium before malignant change is an example of:
A. Hyperplasia
B. Dysplasia
C. Metaplasia
D. Anaplasia
RATIONALE: Metaplasia is the reversible replacement of one mature cell type
with another that is better able to survive the stressor. In smokers, ciliated
columnar epithelium is replaced by squamous epithelium. Dysplasia is disordered
growth that may precede malignancy, and anaplasia is lack of differentiation seen
in malignant tumors.
3. During ischemia, the primary mechanism of irreversible cell injury leading to
necrosis is:
A. Increased intracellular calcium
B. Decreased ATP production
, C. Decreased ATP production and increased intracellular calcium
D. Activation of apoptosis
RATIONALE: Ischemia causes decreased oxygen delivery, leading to decreased
oxidative phosphorylation and ATP depletion. This causes failure of Na+/K+
ATPase pumps, cellular swelling, and increased intracellular calcium. Elevated
calcium activates enzymes (proteases, phospholipases, endonucleases) that cause
irreversible membrane damage and necrosis.
4. A patient with chronic kidney disease has a hemoglobin of 8.5 g/dL. The
primary mechanism for this anemia is:
A. Iron deficiency
B. Hemolysis
C. Decreased erythropoietin production
D. Bone marrow suppression
RATIONALE: The kidneys produce erythropoietin, which stimulates red blood
cell production in the bone marrow. In chronic kidney disease, damaged renal
peritubular fibroblasts produce insufficient erythropoietin, leading to normocytic,
normochromic anemia.
5. A 28-year-old female presents with fatigue, weight gain, cold intolerance, and
constipation. Laboratory findings reveal elevated TSH and decreased free T4.
This condition is most likely:
A. Graves' disease
B. Hashimoto's thyroiditis
C. Hashimoto's thyroiditis
D. Thyroid storm
RATIONALE: Hashimoto's thyroiditis is an autoimmune condition causing
primary hypothyroidism. Elevated TSH with low free T4 indicates primary thyroid
failure. Graves' disease causes hyperthyroidism with low TSH and high T4. Thyroid
storm is acute severe hyperthyroidism.
, 6. The most common cause of community-acquired pneumonia requiring
hospitalization in adults is:
A. Staphylococcus aureus
B. Haemophilus influenzae
C. Streptococcus pneumoniae
D. Pseudomonas aeruginosa
RATIONALE: Streptococcus pneumoniae remains the most common cause of
community-acquired pneumonia in adults. It is a Gram-positive, encapsulated
diplococcus. Other organisms are less common or associated with specific risk
factors.
7. A patient with heart failure has an ejection fraction of 30%. This indicates:
A. Diastolic dysfunction
B. Systolic dysfunction
C. Systolic dysfunction
D. Normal cardiac function
RATIONALE: Ejection fraction is the percentage of blood ejected from the left
ventricle with each contraction. Normal EF is 55-70%. An EF of 30% indicates
systolic dysfunction, where the heart cannot contract effectively to eject blood.
Diastolic dysfunction involves impaired filling with preserved EF.
8. In anaphylactic shock, the primary pathophysiologic mechanism is:
A. Decreased cardiac output from pump failure
B. Systemic vasodilation and increased vascular permeability
C. Systemic vasodilation and increased vascular permeability
D. Obstruction of blood flow
RATIONALE: Anaphylactic shock is a distributive shock caused by IgE-mediated
mast cell degranulation. Release of histamine and other mediators causes
widespread vasodilation and increased capillary permeability, leading to massive
fluid shift from intravascular to interstitial space, hypotension, and airway edema.
QUESTIONS AND ANSWERS 2026/2027 | 300 COMPLETE
STUDY GUIDE
CORE DOMAINS:
• Cellular Biology and Adaptation
• Genetics and Genetic Disorders
• Immunology and Immune-Mediated Disorders
• Inflammation and Wound Healing
• Fluid, Electrolyte, and Acid-Base Homeostasis
• Cardiovascular Pathophysiology
• Respiratory Pathophysiology
• Renal and Genitourinary Pathophysiology
• Neurological Pathophysiology
• Endocrine and Metabolic Pathophysiology
INTRODUCTION:
This comprehensive examination is designed to evaluate the advanced
pathophysiological knowledge, clinical reasoning, and diagnostic acumen required
for graduate-level nursing practice. It assesses mastery of cellular adaptation,
genetic mechanisms, immune responses, inflammation, and organ system
dysfunction across cardiovascular, respiratory, renal, neurological, and endocrine
domains. Through multiple-choice and scenario-based questions, the exam
emphasizes real-world application, critical thinking, and evidence-based decision-
making. The test bank reflects the rigor of graduate pathophysiology education
and prepares candidates for advanced practice, certification, and doctoral-level
study.
,SECTION ONE: QUESTIONS 1–300
1. A cell is exposed to a chronic, sublethal stressor that results in an increased
number of normal-appearing organelles and increased functional capacity. This
adaptive response is best described as:
A. Atrophy
B. Metaplasia
C. Hypertrophy
D. Dysplasia
RATIONALE: Hypertrophy is an increase in cell size and functional capacity in
response to increased demand or stress. It involves synthesis of more structural
components and organelles without cell division. Atrophy is shrinkage, metaplasia
is replacement of one cell type with another, and dysplasia is disordered growth.
2. A 55-year-old male with a 40-pack-year smoking history develops squamous
cell carcinoma of the lung. The transformation of normal bronchial epithelium
to squamous epithelium before malignant change is an example of:
A. Hyperplasia
B. Dysplasia
C. Metaplasia
D. Anaplasia
RATIONALE: Metaplasia is the reversible replacement of one mature cell type
with another that is better able to survive the stressor. In smokers, ciliated
columnar epithelium is replaced by squamous epithelium. Dysplasia is disordered
growth that may precede malignancy, and anaplasia is lack of differentiation seen
in malignant tumors.
3. During ischemia, the primary mechanism of irreversible cell injury leading to
necrosis is:
A. Increased intracellular calcium
B. Decreased ATP production
, C. Decreased ATP production and increased intracellular calcium
D. Activation of apoptosis
RATIONALE: Ischemia causes decreased oxygen delivery, leading to decreased
oxidative phosphorylation and ATP depletion. This causes failure of Na+/K+
ATPase pumps, cellular swelling, and increased intracellular calcium. Elevated
calcium activates enzymes (proteases, phospholipases, endonucleases) that cause
irreversible membrane damage and necrosis.
4. A patient with chronic kidney disease has a hemoglobin of 8.5 g/dL. The
primary mechanism for this anemia is:
A. Iron deficiency
B. Hemolysis
C. Decreased erythropoietin production
D. Bone marrow suppression
RATIONALE: The kidneys produce erythropoietin, which stimulates red blood
cell production in the bone marrow. In chronic kidney disease, damaged renal
peritubular fibroblasts produce insufficient erythropoietin, leading to normocytic,
normochromic anemia.
5. A 28-year-old female presents with fatigue, weight gain, cold intolerance, and
constipation. Laboratory findings reveal elevated TSH and decreased free T4.
This condition is most likely:
A. Graves' disease
B. Hashimoto's thyroiditis
C. Hashimoto's thyroiditis
D. Thyroid storm
RATIONALE: Hashimoto's thyroiditis is an autoimmune condition causing
primary hypothyroidism. Elevated TSH with low free T4 indicates primary thyroid
failure. Graves' disease causes hyperthyroidism with low TSH and high T4. Thyroid
storm is acute severe hyperthyroidism.
, 6. The most common cause of community-acquired pneumonia requiring
hospitalization in adults is:
A. Staphylococcus aureus
B. Haemophilus influenzae
C. Streptococcus pneumoniae
D. Pseudomonas aeruginosa
RATIONALE: Streptococcus pneumoniae remains the most common cause of
community-acquired pneumonia in adults. It is a Gram-positive, encapsulated
diplococcus. Other organisms are less common or associated with specific risk
factors.
7. A patient with heart failure has an ejection fraction of 30%. This indicates:
A. Diastolic dysfunction
B. Systolic dysfunction
C. Systolic dysfunction
D. Normal cardiac function
RATIONALE: Ejection fraction is the percentage of blood ejected from the left
ventricle with each contraction. Normal EF is 55-70%. An EF of 30% indicates
systolic dysfunction, where the heart cannot contract effectively to eject blood.
Diastolic dysfunction involves impaired filling with preserved EF.
8. In anaphylactic shock, the primary pathophysiologic mechanism is:
A. Decreased cardiac output from pump failure
B. Systemic vasodilation and increased vascular permeability
C. Systemic vasodilation and increased vascular permeability
D. Obstruction of blood flow
RATIONALE: Anaphylactic shock is a distributive shock caused by IgE-mediated
mast cell degranulation. Release of histamine and other mediators causes
widespread vasodilation and increased capillary permeability, leading to massive
fluid shift from intravascular to interstitial space, hypotension, and airway edema.
