NURS 6501 Advanced Pathophysiology Final Exam
2026/2027 – Questions & Answers with Rationales
Table of Contents
1. Cellular Adaptation, Injury & Death
2. Inflammation, Immunity & Infection
3. Genetics, Genomics & Cancer
4. Fluids, Electrolytes & Acid-Base Disorders
5. Hematologic & Immune Disorders
6. Cardiovascular Pathophysiology
7. Respiratory Pathophysiology
8. Renal & Urinary Pathophysiology
9. Endocrine & Metabolic Disorders
10.Neurologic, Gastrointestinal & Multisystem Disorders
SECTION 1 — CELLULAR ADAPTATION, INJURY & DEATH
Question 1
A patient develops cardiac hypertrophy secondary to long-standing hypertension.
Which cellular adaptation best explains this change?
A. Hyperplasia
B. Hypertrophy
C. Atrophy
D. Metaplasia
Answer: B. Hypertrophy
Rationale: Hypertrophy is an increase in cell size resulting in enlargement of an
organ. Cardiac myocytes have limited ability to divide, so chronic pressure
overload produces hypertrophy rather than hyperplasia.
,Question 2
A patient with chronic gastroesophageal reflux develops replacement of normal
esophageal squamous epithelium with columnar epithelium. Which process is
occurring?
A. Dysplasia
B. Hyperplasia
C. Metaplasia
D. Hypertrophy
Answer: C. Metaplasia
Rationale: Metaplasia is a reversible change in which one differentiated cell type
is replaced by another better suited to chronic environmental stress. Persistent
irritation can increase the risk of subsequent dysplasia.
Question 3
Which cellular change is most characteristic of irreversible cellular injury?
A. Cellular swelling
B. Fatty change
C. Ribosomal detachment
D. Loss of membrane integrity
Answer: D. Loss of membrane integrity
Rationale: Severe membrane damage is a hallmark of irreversible injury. Once
plasma and organelle membranes lose integrity, cellular contents leak and
restoration of normal cellular function becomes impossible.
Question 4
A patient experiences severe hypoxia. Which cellular event occurs earliest after
inadequate oxygen delivery?
,A. Reduced oxidative phosphorylation
B. Increased ATP production
C. Increased protein synthesis
D. Increased sodium-potassium pump activity
Answer: A. Reduced oxidative phosphorylation
Rationale: Oxygen is required for oxidative phosphorylation in mitochondria.
Hypoxia rapidly decreases ATP production, impairing energy-dependent cellular
processes such as the sodium-potassium pump.
Question 5
Loss of ATP production during ischemia directly causes which cellular change?
A. Increased intracellular potassium
B. Increased intracellular sodium and water
C. Increased oxidative phosphorylation
D. Increased protein synthesis
Answer: B. Increased intracellular sodium and water
Rationale: ATP depletion impairs the Na⁺/K⁺-ATPase. Sodium accumulates
intracellularly, followed by water, producing cellular swelling.
Question 6
Which mechanism contributes most directly to reperfusion injury?
A. Reduced oxygen delivery
B. Decreased free-radical formation
C. Reactive oxygen species generation
D. Suppression of inflammatory mediators
Answer: C. Reactive oxygen species generation
Rationale: Restoration of oxygen to ischemic tissue can generate reactive oxygen
species. These molecules damage lipids, proteins, DNA, and cellular membranes.
, Question 7
Which type of cellular death is characterized by programmed, energy-dependent
destruction without significant surrounding inflammation?
A. Necrosis
B. Apoptosis
C. Gangrene
D. Autolysis
Answer: B. Apoptosis
Rationale: Apoptosis is regulated programmed cell death. Cellular fragments are
removed by phagocytes, generally without the extensive inflammatory response
associated with necrosis.
Question 8
A patient experiences myocardial infarction. The damaged myocardial tissue
undergoes coagulative necrosis. What is the primary characteristic?
A. Preservation of tissue architecture for several days
B. Complete liquefaction of the tissue
C. Formation of granulomas
D. Immediate calcification
Answer: A. Preservation of tissue architecture for several days
Rationale: Coagulative necrosis is typical of ischemic injury in most solid organs.
The tissue architecture remains recognizable for a period despite cellular death.
Question 9
Which organ is most commonly associated with liquefactive necrosis following
ischemic injury?
2026/2027 – Questions & Answers with Rationales
Table of Contents
1. Cellular Adaptation, Injury & Death
2. Inflammation, Immunity & Infection
3. Genetics, Genomics & Cancer
4. Fluids, Electrolytes & Acid-Base Disorders
5. Hematologic & Immune Disorders
6. Cardiovascular Pathophysiology
7. Respiratory Pathophysiology
8. Renal & Urinary Pathophysiology
9. Endocrine & Metabolic Disorders
10.Neurologic, Gastrointestinal & Multisystem Disorders
SECTION 1 — CELLULAR ADAPTATION, INJURY & DEATH
Question 1
A patient develops cardiac hypertrophy secondary to long-standing hypertension.
Which cellular adaptation best explains this change?
A. Hyperplasia
B. Hypertrophy
C. Atrophy
D. Metaplasia
Answer: B. Hypertrophy
Rationale: Hypertrophy is an increase in cell size resulting in enlargement of an
organ. Cardiac myocytes have limited ability to divide, so chronic pressure
overload produces hypertrophy rather than hyperplasia.
,Question 2
A patient with chronic gastroesophageal reflux develops replacement of normal
esophageal squamous epithelium with columnar epithelium. Which process is
occurring?
A. Dysplasia
B. Hyperplasia
C. Metaplasia
D. Hypertrophy
Answer: C. Metaplasia
Rationale: Metaplasia is a reversible change in which one differentiated cell type
is replaced by another better suited to chronic environmental stress. Persistent
irritation can increase the risk of subsequent dysplasia.
Question 3
Which cellular change is most characteristic of irreversible cellular injury?
A. Cellular swelling
B. Fatty change
C. Ribosomal detachment
D. Loss of membrane integrity
Answer: D. Loss of membrane integrity
Rationale: Severe membrane damage is a hallmark of irreversible injury. Once
plasma and organelle membranes lose integrity, cellular contents leak and
restoration of normal cellular function becomes impossible.
Question 4
A patient experiences severe hypoxia. Which cellular event occurs earliest after
inadequate oxygen delivery?
,A. Reduced oxidative phosphorylation
B. Increased ATP production
C. Increased protein synthesis
D. Increased sodium-potassium pump activity
Answer: A. Reduced oxidative phosphorylation
Rationale: Oxygen is required for oxidative phosphorylation in mitochondria.
Hypoxia rapidly decreases ATP production, impairing energy-dependent cellular
processes such as the sodium-potassium pump.
Question 5
Loss of ATP production during ischemia directly causes which cellular change?
A. Increased intracellular potassium
B. Increased intracellular sodium and water
C. Increased oxidative phosphorylation
D. Increased protein synthesis
Answer: B. Increased intracellular sodium and water
Rationale: ATP depletion impairs the Na⁺/K⁺-ATPase. Sodium accumulates
intracellularly, followed by water, producing cellular swelling.
Question 6
Which mechanism contributes most directly to reperfusion injury?
A. Reduced oxygen delivery
B. Decreased free-radical formation
C. Reactive oxygen species generation
D. Suppression of inflammatory mediators
Answer: C. Reactive oxygen species generation
Rationale: Restoration of oxygen to ischemic tissue can generate reactive oxygen
species. These molecules damage lipids, proteins, DNA, and cellular membranes.
, Question 7
Which type of cellular death is characterized by programmed, energy-dependent
destruction without significant surrounding inflammation?
A. Necrosis
B. Apoptosis
C. Gangrene
D. Autolysis
Answer: B. Apoptosis
Rationale: Apoptosis is regulated programmed cell death. Cellular fragments are
removed by phagocytes, generally without the extensive inflammatory response
associated with necrosis.
Question 8
A patient experiences myocardial infarction. The damaged myocardial tissue
undergoes coagulative necrosis. What is the primary characteristic?
A. Preservation of tissue architecture for several days
B. Complete liquefaction of the tissue
C. Formation of granulomas
D. Immediate calcification
Answer: A. Preservation of tissue architecture for several days
Rationale: Coagulative necrosis is typical of ischemic injury in most solid organs.
The tissue architecture remains recognizable for a period despite cellular death.
Question 9
Which organ is most commonly associated with liquefactive necrosis following
ischemic injury?
