NR 507 Final Exam – Advanced Pathophysiology
EXAMINATION QUESTIONS AND DETAILED
SOLUTIONS LATEST UPDATE THIS YEAR JUST
RELEASED
Tested Content Areas (Short Summary)
1. Cellular Injury and Adaptation – Mechanisms of cell injury, necrosis, apoptosis, cellular
adaptations, oxidative stress, and inflammation.
2. Genetics and Genomics – Patterns of inheritance, genetic mutations, chromosomal
abnormalities, epigenetics, and genetic disorders.
3. Immunology and Inflammation – Innate and adaptive immunity, hypersensitivity reactions,
autoimmune diseases, immunodeficiency disorders, and inflammatory mediators.
4. Fluid, Electrolyte, and Acid–Base Balance – Sodium, potassium, calcium disorders, acid-base
disturbances, dehydration, edema, and compensatory mechanisms.
5. Cardiovascular Pathophysiology – Hypertension, heart failure, coronary artery disease,
arrhythmias, shock, and vascular disorders.
6. Pulmonary Disorders – COPD, asthma, pneumonia, pulmonary embolism, respiratory failure,
and ventilation-perfusion abnormalities.
7. Endocrine and Metabolic Disorders – Diabetes mellitus, thyroid disease, adrenal disorders,
pituitary disorders, and metabolic syndrome.
8. Renal and Urinary Disorders – Acute kidney injury, chronic kidney disease, glomerular disorders,
nephrotic syndrome, electrolyte regulation, and renal failure.
9. Neurologic Disorders – Stroke, seizures, neurodegenerative diseases, intracranial pressure,
multiple sclerosis, and neuromuscular disorders.
10. Gastrointestinal, Hepatic, and Hematologic Disorders – Liver disease, pancreatitis, anemia,
coagulation disorders, inflammatory bowel disease, and gastrointestinal pathology.
NR 507 Final Exam – Advanced Pathophysiology
Question 1
,A patient experiences prolonged tissue hypoxia following severe blood loss.
Which cellular adaptation is most likely to occur initially before irreversible cell
injury develops?
A. Coagulative necrosis
B. Apoptosis
C. Decreased ATP production with reversible cellular swelling
D. Fat liquefaction
Correct Answer: C. Decreased ATP production with reversible cellular swelling
Rationale: Oxygen deprivation decreases oxidative phosphorylation, reducing ATP
production. Failure of the sodium-potassium pump allows sodium and water to
enter the cell, causing reversible cellular swelling before irreversible injury occurs.
Question 2
Which characteristic best distinguishes apoptosis from necrosis when evaluating
tissue injury during advanced pathophysiology studies?
A. Apoptosis always produces severe inflammation.
B. Necrosis requires activation of caspases.
C. Apoptosis is a programmed process causing minimal inflammatory response.
D. Necrosis occurs only during embryonic development.
Correct Answer: C. Apoptosis is a programmed process causing minimal
inflammatory response.
Rationale: Apoptosis is genetically regulated cell death involving caspase
activation and membrane integrity preservation, resulting in minimal
inflammation. Necrosis causes membrane rupture and inflammatory responses.
Question 3
,A patient with chronic hypertension develops left ventricular hypertrophy. Which
cellular adaptation best explains this structural cardiac change?
A. Hyperplasia
B. Metaplasia
C. Hypertrophy
D. Dysplasia
Correct Answer: C. Hypertrophy
Rationale: Cardiac muscle cells enlarge rather than increase in number because
they have limited mitotic ability. Hypertrophy allows the heart to compensate for
increased workload.
Question 4
Which electrolyte imbalance is most likely to produce life-threatening cardiac
arrhythmias because of altered myocardial membrane excitability?
A. Mild hypernatremia
B. Hyperkalemia
C. Hypermagnesemia
D. Hyperphosphatemia
Correct Answer: B. Hyperkalemia
Rationale: Elevated serum potassium decreases myocardial excitability initially
but can ultimately produce dangerous conduction abnormalities and fatal
arrhythmias.
Question 5
A nurse practitioner evaluates arterial blood gases showing pH 7.29, PaCO₂ 55
mmHg, and HCO₃⁻ 26 mEq/L. Which acid-base disorder is present?
, A. Respiratory acidosis
B. Respiratory alkalosis
C. Metabolic acidosis
D. Metabolic alkalosis
Correct Answer: A. Respiratory acidosis
Rationale: Low pH with elevated carbon dioxide indicates primary respiratory
acidosis. Normal bicarbonate suggests little or no metabolic compensation.
Question 6
Which inflammatory mediator is primarily responsible for increasing vascular
permeability during the early stages of acute inflammation?
A. Histamine
B. Insulin
C. Aldosterone
D. Erythropoietin
Correct Answer: A. Histamine
Rationale: Histamine released from mast cells rapidly increases capillary
permeability and vasodilation, allowing immune cells to enter injured tissues.
Question 7
A patient develops generalized edema after severe protein malnutrition. Which
mechanism most directly explains this finding?
A. Increased plasma oncotic pressure
B. Reduced plasma oncotic pressure caused by hypoalbuminemia
C. Increased erythropoiesis
D. Elevated arterial oxygen tension
EXAMINATION QUESTIONS AND DETAILED
SOLUTIONS LATEST UPDATE THIS YEAR JUST
RELEASED
Tested Content Areas (Short Summary)
1. Cellular Injury and Adaptation – Mechanisms of cell injury, necrosis, apoptosis, cellular
adaptations, oxidative stress, and inflammation.
2. Genetics and Genomics – Patterns of inheritance, genetic mutations, chromosomal
abnormalities, epigenetics, and genetic disorders.
3. Immunology and Inflammation – Innate and adaptive immunity, hypersensitivity reactions,
autoimmune diseases, immunodeficiency disorders, and inflammatory mediators.
4. Fluid, Electrolyte, and Acid–Base Balance – Sodium, potassium, calcium disorders, acid-base
disturbances, dehydration, edema, and compensatory mechanisms.
5. Cardiovascular Pathophysiology – Hypertension, heart failure, coronary artery disease,
arrhythmias, shock, and vascular disorders.
6. Pulmonary Disorders – COPD, asthma, pneumonia, pulmonary embolism, respiratory failure,
and ventilation-perfusion abnormalities.
7. Endocrine and Metabolic Disorders – Diabetes mellitus, thyroid disease, adrenal disorders,
pituitary disorders, and metabolic syndrome.
8. Renal and Urinary Disorders – Acute kidney injury, chronic kidney disease, glomerular disorders,
nephrotic syndrome, electrolyte regulation, and renal failure.
9. Neurologic Disorders – Stroke, seizures, neurodegenerative diseases, intracranial pressure,
multiple sclerosis, and neuromuscular disorders.
10. Gastrointestinal, Hepatic, and Hematologic Disorders – Liver disease, pancreatitis, anemia,
coagulation disorders, inflammatory bowel disease, and gastrointestinal pathology.
NR 507 Final Exam – Advanced Pathophysiology
Question 1
,A patient experiences prolonged tissue hypoxia following severe blood loss.
Which cellular adaptation is most likely to occur initially before irreversible cell
injury develops?
A. Coagulative necrosis
B. Apoptosis
C. Decreased ATP production with reversible cellular swelling
D. Fat liquefaction
Correct Answer: C. Decreased ATP production with reversible cellular swelling
Rationale: Oxygen deprivation decreases oxidative phosphorylation, reducing ATP
production. Failure of the sodium-potassium pump allows sodium and water to
enter the cell, causing reversible cellular swelling before irreversible injury occurs.
Question 2
Which characteristic best distinguishes apoptosis from necrosis when evaluating
tissue injury during advanced pathophysiology studies?
A. Apoptosis always produces severe inflammation.
B. Necrosis requires activation of caspases.
C. Apoptosis is a programmed process causing minimal inflammatory response.
D. Necrosis occurs only during embryonic development.
Correct Answer: C. Apoptosis is a programmed process causing minimal
inflammatory response.
Rationale: Apoptosis is genetically regulated cell death involving caspase
activation and membrane integrity preservation, resulting in minimal
inflammation. Necrosis causes membrane rupture and inflammatory responses.
Question 3
,A patient with chronic hypertension develops left ventricular hypertrophy. Which
cellular adaptation best explains this structural cardiac change?
A. Hyperplasia
B. Metaplasia
C. Hypertrophy
D. Dysplasia
Correct Answer: C. Hypertrophy
Rationale: Cardiac muscle cells enlarge rather than increase in number because
they have limited mitotic ability. Hypertrophy allows the heart to compensate for
increased workload.
Question 4
Which electrolyte imbalance is most likely to produce life-threatening cardiac
arrhythmias because of altered myocardial membrane excitability?
A. Mild hypernatremia
B. Hyperkalemia
C. Hypermagnesemia
D. Hyperphosphatemia
Correct Answer: B. Hyperkalemia
Rationale: Elevated serum potassium decreases myocardial excitability initially
but can ultimately produce dangerous conduction abnormalities and fatal
arrhythmias.
Question 5
A nurse practitioner evaluates arterial blood gases showing pH 7.29, PaCO₂ 55
mmHg, and HCO₃⁻ 26 mEq/L. Which acid-base disorder is present?
, A. Respiratory acidosis
B. Respiratory alkalosis
C. Metabolic acidosis
D. Metabolic alkalosis
Correct Answer: A. Respiratory acidosis
Rationale: Low pH with elevated carbon dioxide indicates primary respiratory
acidosis. Normal bicarbonate suggests little or no metabolic compensation.
Question 6
Which inflammatory mediator is primarily responsible for increasing vascular
permeability during the early stages of acute inflammation?
A. Histamine
B. Insulin
C. Aldosterone
D. Erythropoietin
Correct Answer: A. Histamine
Rationale: Histamine released from mast cells rapidly increases capillary
permeability and vasodilation, allowing immune cells to enter injured tissues.
Question 7
A patient develops generalized edema after severe protein malnutrition. Which
mechanism most directly explains this finding?
A. Increased plasma oncotic pressure
B. Reduced plasma oncotic pressure caused by hypoalbuminemia
C. Increased erythropoiesis
D. Elevated arterial oxygen tension
