NR 507 Advanced Pathophysiology — Midterm & Final Exam Complete Practice Test Bank
500 Exam-Style Questions with Verified Answers & Detailed Rationales (2026/2027)
TABLE OF CONTENTS
| Section | Domain | Questions |
|---------|--------|-----------|
| I | Cellular Adaptation, Injury, and Death | 70 |
| II | Genetics and Genetic Disorders | 50 |
| III | Inflammation and Immunity | 70 |
| IV | Fluid, Electrolyte, and Acid-Base Balance | 60 |
| V | Cardiovascular Pathophysiology | 60 |
| VI | Respiratory Pathophysiology | 50 |
| VII | Renal and Urinary Pathophysiology | 50 |
| VIII | Endocrine and Metabolic Pathophysiology | 50 |
| IX | Hematologic Disorders | 40 |
| | Total | 500 |
---
EXAM OVERVIEW
Course: NR 507 — Advanced Pathophysiology
Institution: Chamberlain University
Exam Format: Multiple-choice and scenario-based questions
Total Practice Questions: 500
Recommended Time: 3 hours (2 minutes per question)
,Passing Score: 70% (350/500 correct)
Core Domains Covered: Cellular adaptation, injury, and death; genetics and genetic
disorders; inflammation and immunity; fluid, electrolyte, and acid-base balance;
cardiovascular pathophysiology; respiratory pathophysiology; renal and urinary
pathophysiology; endocrine and metabolic pathophysiology; hematologic disorders.
Reference: Chamberlain University NR 507 Course Content; Stuvia Verified Exam Questions
and Rationales (2025–2026); NR507 Midterm/Final Exam Review Guides.
---
SECTION I: CELLULAR ADAPTATION, INJURY, AND DEATH (70 Questions)
Q1. During cell injury caused by hypoxia, sodium and water move into the cell because:
A. The pump that transports sodium out of the cell cannot function because of a decrease in
adenosine triphosphate (ATP) levels
B. The osmotic pressure is increased, which pulls additional sodium across the cell
membrane
C. Oxygen is not available to bind with sodium to maintain it outside of the cell
D. The cell membrane becomes impermeable to sodium
Correct Answer: A
Rationale: During hypoxia, ATP production decreases, and the sodium-potassium pump
(which requires ATP) fails. Sodium accumulates inside the cell, drawing water in and causing
cellular swelling. This is a classic mechanism of hypoxic cell injury.
Why Wrong: B — Osmotic pressure changes are a consequence, not the primary cause. C —
Oxygen does not bind sodium. D — The membrane does not become impermeable.
---
,Q2. What is an effect of ionizing radiation exposure?
A. Respiratory distress
B. Sun intolerance
C. Deoxyribonucleic acid (DNA) aberrations
D. Immediate cell death
Correct Answer: C
Rationale: Ionizing radiation causes DNA aberrations by directly damaging DNA strands or
generating free radicals that attack DNA. This can lead to mutations, chromosomal breakage,
and cell death.
Why Wrong: A — Respiratory distress is not a direct effect. B — Sun intolerance is not a
recognized direct effect. D — Cell death may occur but is not the immediate primary effect.
---
Q3. Which component of the cell produces hydrogen peroxide (H₂O₂) by using oxygen to
remove hydrogen atoms from specific substrates?
A. Lysosomes
B. Peroxisomes
C. Ribosomes
D. Oxyhydrosomes
Correct Answer: B
Rationale: Peroxisomes contain oxidative enzymes (e.g., catalase, urate oxidase) that
produce hydrogen peroxide as a byproduct of fatty acid oxidation and detoxification
reactions.
, Why Wrong: A — Lysosomes contain hydrolytic enzymes. C — Ribosomes synthesize
proteins. D — Oxyhydrosomes are not a recognized organelle.
---
Q4. What is a consequence of plasma membrane damage to the mitochondria?
A. Enzymatic digestion halts DNA synthesis
B. Influx of calcium ions halts ATP production
C. Edema from an influx in sodium causes a reduction in ATP production
D. Potassium shifts out of the mitochondria, destroying the infrastructure
Correct Answer: B
Rationale: When the plasma membrane is damaged, calcium ions rush into the cell.
Mitochondrial calcium overload inhibits ATP production and can trigger cell death pathways.
Why Wrong: A — Enzymatic digestion is not the primary consequence. C — Sodium influx
causes edema but not directly reduced ATP. D — Potassium shifts are secondary.
---
Q5. Which statement is a description of one of the characteristics of apoptosis?
A. Apoptosis involves programmed cell death of scattered single cells
B. Apoptosis is characterized by the swelling of the nucleus and cytoplasm
C. Apoptosis involves unpredictable patterns of cell death
D. Apoptosis results in benign malignancies
Correct Answer: A
500 Exam-Style Questions with Verified Answers & Detailed Rationales (2026/2027)
TABLE OF CONTENTS
| Section | Domain | Questions |
|---------|--------|-----------|
| I | Cellular Adaptation, Injury, and Death | 70 |
| II | Genetics and Genetic Disorders | 50 |
| III | Inflammation and Immunity | 70 |
| IV | Fluid, Electrolyte, and Acid-Base Balance | 60 |
| V | Cardiovascular Pathophysiology | 60 |
| VI | Respiratory Pathophysiology | 50 |
| VII | Renal and Urinary Pathophysiology | 50 |
| VIII | Endocrine and Metabolic Pathophysiology | 50 |
| IX | Hematologic Disorders | 40 |
| | Total | 500 |
---
EXAM OVERVIEW
Course: NR 507 — Advanced Pathophysiology
Institution: Chamberlain University
Exam Format: Multiple-choice and scenario-based questions
Total Practice Questions: 500
Recommended Time: 3 hours (2 minutes per question)
,Passing Score: 70% (350/500 correct)
Core Domains Covered: Cellular adaptation, injury, and death; genetics and genetic
disorders; inflammation and immunity; fluid, electrolyte, and acid-base balance;
cardiovascular pathophysiology; respiratory pathophysiology; renal and urinary
pathophysiology; endocrine and metabolic pathophysiology; hematologic disorders.
Reference: Chamberlain University NR 507 Course Content; Stuvia Verified Exam Questions
and Rationales (2025–2026); NR507 Midterm/Final Exam Review Guides.
---
SECTION I: CELLULAR ADAPTATION, INJURY, AND DEATH (70 Questions)
Q1. During cell injury caused by hypoxia, sodium and water move into the cell because:
A. The pump that transports sodium out of the cell cannot function because of a decrease in
adenosine triphosphate (ATP) levels
B. The osmotic pressure is increased, which pulls additional sodium across the cell
membrane
C. Oxygen is not available to bind with sodium to maintain it outside of the cell
D. The cell membrane becomes impermeable to sodium
Correct Answer: A
Rationale: During hypoxia, ATP production decreases, and the sodium-potassium pump
(which requires ATP) fails. Sodium accumulates inside the cell, drawing water in and causing
cellular swelling. This is a classic mechanism of hypoxic cell injury.
Why Wrong: B — Osmotic pressure changes are a consequence, not the primary cause. C —
Oxygen does not bind sodium. D — The membrane does not become impermeable.
---
,Q2. What is an effect of ionizing radiation exposure?
A. Respiratory distress
B. Sun intolerance
C. Deoxyribonucleic acid (DNA) aberrations
D. Immediate cell death
Correct Answer: C
Rationale: Ionizing radiation causes DNA aberrations by directly damaging DNA strands or
generating free radicals that attack DNA. This can lead to mutations, chromosomal breakage,
and cell death.
Why Wrong: A — Respiratory distress is not a direct effect. B — Sun intolerance is not a
recognized direct effect. D — Cell death may occur but is not the immediate primary effect.
---
Q3. Which component of the cell produces hydrogen peroxide (H₂O₂) by using oxygen to
remove hydrogen atoms from specific substrates?
A. Lysosomes
B. Peroxisomes
C. Ribosomes
D. Oxyhydrosomes
Correct Answer: B
Rationale: Peroxisomes contain oxidative enzymes (e.g., catalase, urate oxidase) that
produce hydrogen peroxide as a byproduct of fatty acid oxidation and detoxification
reactions.
, Why Wrong: A — Lysosomes contain hydrolytic enzymes. C — Ribosomes synthesize
proteins. D — Oxyhydrosomes are not a recognized organelle.
---
Q4. What is a consequence of plasma membrane damage to the mitochondria?
A. Enzymatic digestion halts DNA synthesis
B. Influx of calcium ions halts ATP production
C. Edema from an influx in sodium causes a reduction in ATP production
D. Potassium shifts out of the mitochondria, destroying the infrastructure
Correct Answer: B
Rationale: When the plasma membrane is damaged, calcium ions rush into the cell.
Mitochondrial calcium overload inhibits ATP production and can trigger cell death pathways.
Why Wrong: A — Enzymatic digestion is not the primary consequence. C — Sodium influx
causes edema but not directly reduced ATP. D — Potassium shifts are secondary.
---
Q5. Which statement is a description of one of the characteristics of apoptosis?
A. Apoptosis involves programmed cell death of scattered single cells
B. Apoptosis is characterized by the swelling of the nucleus and cytoplasm
C. Apoptosis involves unpredictable patterns of cell death
D. Apoptosis results in benign malignancies
Correct Answer: A
