NR 507 Midterm Exam – Advanced Pathophysiology 2026 UPD… 2026 Update • Verified Answers
✓ VERIFIED • 2026 UPDATE • 100% ACCURATE
NR 507 Midterm Exam – Advanced Pathophysiology
2026 UPDATE
Actual Exam Questions & Verified Answers
with Detailed Rationales
Document Type: Exam (Elaborations)
Academic Year:
Total Questions: 50 Multiple Choice
Includes: Correct Answers + Full Rationales
Status: Verified & Updated for 2026
High-quality exam preparation resource.
All answers verified against standard course content.
Exam (Elaborations) • Actual Questions & Rationales Page 1
, NR 507 Midterm Exam – Advanced Pathophysiology 2026 UPD… 2026 Update • Verified Answers
Questions & Verified Answers
1. Which process involves the replacement of one mature cell type by another, less mature cell type?
A. Atrophy
B. Dysplasia
C. Hyperplasia
D. Metaplasia
Answer: D
Rationale: Metaplasia is a reversible replacement of one mature cell type by another, often in response to chronic irritation.
2. What is the most common cause of cellular injury?
A. Free radicals
B. Chemical agents
C. Hypoxia
D. Genetic factors
Answer: C
Rationale: Hypoxia, or lack of sufficient oxygen, is the single most common cause of cellular injury.
3. Which type of necrosis is most commonly associated with the brain?
A. Coagulative
B. Liquefactive
C. Caseous
D. Fat
Answer: B
Rationale: Liquefactive necrosis typically occurs in the brain due to the high concentration of digestive enzymes and lack of
connective tissue.
4. Which electrolyte is primarily responsible for maintaining extracellular fluid (ECF) osmotic pressure?
A. Potassium
B. Sodium
C. Calcium
D. Magnesium
Answer: B
Rationale: Sodium is the most abundant ECF cation and plays a central role in maintaining osmotic pressure and water
balance.
5. A patient presents with a blood pH of 7.25 and a PaCO2 of 55 mmHg. Which condition does this
reflect?
A. Metabolic Acidosis
B. Respiratory Alkalosis
C. Respiratory Acidosis
D. Metabolic Alkalosis
Answer: C
Rationale: A pH below 7.35 indicates acidosis, and an elevated PaCO2 indicates a respiratory cause.
Exam (Elaborations) • Actual Questions & Rationales Page 2
✓ VERIFIED • 2026 UPDATE • 100% ACCURATE
NR 507 Midterm Exam – Advanced Pathophysiology
2026 UPDATE
Actual Exam Questions & Verified Answers
with Detailed Rationales
Document Type: Exam (Elaborations)
Academic Year:
Total Questions: 50 Multiple Choice
Includes: Correct Answers + Full Rationales
Status: Verified & Updated for 2026
High-quality exam preparation resource.
All answers verified against standard course content.
Exam (Elaborations) • Actual Questions & Rationales Page 1
, NR 507 Midterm Exam – Advanced Pathophysiology 2026 UPD… 2026 Update • Verified Answers
Questions & Verified Answers
1. Which process involves the replacement of one mature cell type by another, less mature cell type?
A. Atrophy
B. Dysplasia
C. Hyperplasia
D. Metaplasia
Answer: D
Rationale: Metaplasia is a reversible replacement of one mature cell type by another, often in response to chronic irritation.
2. What is the most common cause of cellular injury?
A. Free radicals
B. Chemical agents
C. Hypoxia
D. Genetic factors
Answer: C
Rationale: Hypoxia, or lack of sufficient oxygen, is the single most common cause of cellular injury.
3. Which type of necrosis is most commonly associated with the brain?
A. Coagulative
B. Liquefactive
C. Caseous
D. Fat
Answer: B
Rationale: Liquefactive necrosis typically occurs in the brain due to the high concentration of digestive enzymes and lack of
connective tissue.
4. Which electrolyte is primarily responsible for maintaining extracellular fluid (ECF) osmotic pressure?
A. Potassium
B. Sodium
C. Calcium
D. Magnesium
Answer: B
Rationale: Sodium is the most abundant ECF cation and plays a central role in maintaining osmotic pressure and water
balance.
5. A patient presents with a blood pH of 7.25 and a PaCO2 of 55 mmHg. Which condition does this
reflect?
A. Metabolic Acidosis
B. Respiratory Alkalosis
C. Respiratory Acidosis
D. Metabolic Alkalosis
Answer: C
Rationale: A pH below 7.35 indicates acidosis, and an elevated PaCO2 indicates a respiratory cause.
Exam (Elaborations) • Actual Questions & Rationales Page 2
