SCI 225 Pathophysiology Final Exam Comprehensive … 2026/2027 • Verified • Assured Grade A+
✓ VERIFIED • 2026/2027 UPDATE • 100% ACCURATE
SCI 225 Pathophysiology Final Exam Comprehensive Review
2026/2027 UPDATE |Nightingale
ACTUAL EXAM QUESTIONS & VERIFIED ANSWERS
with Clear, Detailed Rationales
Document Type: Exam (Elaborations) / Study Guide
Academic Year:
Total Questions: 50 Multiple Choice
Includes: Correct Answers + Rationales
Grade: A+ Assured
ASSURED GRADE A+
Exam (Elaborations) • Detailed Rationales Page 1
,SCI 225 Pathophysiology Final Exam Comprehensive … 2026/2027 • Verified • Assured Grade A+
Questions & Verified Answers
1. Which cellular adaptation is characterized by the replacement of one mature cell type by
another, often in response to chronic irritation?
A. Atrophy
B. Dysplasia
C. Hyperplasia
D. Metaplasia
Answer: D
Rationale: Metaplasia is a reversible change where one adult cell type is replaced by another to better
withstand environmental stress, such as in Barrett’s esophagus. Clear understanding of this concept
improves both test performance and everyday clinical judgment. Practice applying it to short case
scenarios to lock the idea in place. This knowledge supports safe care and helps the nurse teach the
client and family clearly and simply. Clear teaching improves cooperation and reduces anxiety.
2. A patient with chronic obstructive pulmonary disease (COPD) is most likely to present
with which acid-base imbalance?
A. Respiratory Acidosis
B. Metabolic Alkalosis
C. Respiratory Alkalosis
D. is most likely to present with which acid-base imbalance?
Answer: A
Rationale: COPD leads to hypoventilation and CO2 retention, causing a decrease in pH, which
characterizes respiratory acidosis. This is important because the nurse must choose the action that
keeps the client safest while still meeting their basic needs. Always think about safety first when
answering these questions. Understanding this helps the nurse notice early warning signs and act
before the problem gets worse. Early action often prevents bigger complications for the client.
Exam (Elaborations) • Detailed Rationales Page 2
, SCI 225 Pathophysiology Final Exam Comprehensive … 2026/2027 • Verified • Assured Grade A+
3. What is the primary mechanism of cellular injury caused by hypoxia?
A. Failure of the sodium-potassium pump
B. Increased intracellular pH
C. Rapid increase in ATP production
D. Decreased intracellular sodium concentration
Answer: A
Rationale: Hypoxia leads to ATP depletion, which causes the Na+/K+ pump to fail, resulting in cellular
swelling as sodium and water enter the cell. This is important because the nurse must choose the
action that keeps the client safest while still meeting their basic needs. Always think about safety first
when answering these questions. Understanding this helps the nurse notice early warning signs and
act before the problem gets worse. Early action often prevents bigger complications for the client.
4. In the TNM staging system for cancer, what does the ‘N’ represent?
A. Regional lymph node involvement
B. Neoplasm grade
C. Necrosis level
D. Number of primary tumors
Answer: A
Rationale: In TNM staging, T stands for Tumor size, N for regional lymph Node involvement, and M for
Metastasis. This knowledge supports safe care and helps the nurse teach the client and family clearly
and simply. Clear teaching improves cooperation and reduces anxiety. This knowledge supports safe
care and helps the nurse teach the client and family clearly and simply. Clear teaching improves
cooperation and reduces anxiety.
Exam (Elaborations) • Detailed Rationales Page 3
✓ VERIFIED • 2026/2027 UPDATE • 100% ACCURATE
SCI 225 Pathophysiology Final Exam Comprehensive Review
2026/2027 UPDATE |Nightingale
ACTUAL EXAM QUESTIONS & VERIFIED ANSWERS
with Clear, Detailed Rationales
Document Type: Exam (Elaborations) / Study Guide
Academic Year:
Total Questions: 50 Multiple Choice
Includes: Correct Answers + Rationales
Grade: A+ Assured
ASSURED GRADE A+
Exam (Elaborations) • Detailed Rationales Page 1
,SCI 225 Pathophysiology Final Exam Comprehensive … 2026/2027 • Verified • Assured Grade A+
Questions & Verified Answers
1. Which cellular adaptation is characterized by the replacement of one mature cell type by
another, often in response to chronic irritation?
A. Atrophy
B. Dysplasia
C. Hyperplasia
D. Metaplasia
Answer: D
Rationale: Metaplasia is a reversible change where one adult cell type is replaced by another to better
withstand environmental stress, such as in Barrett’s esophagus. Clear understanding of this concept
improves both test performance and everyday clinical judgment. Practice applying it to short case
scenarios to lock the idea in place. This knowledge supports safe care and helps the nurse teach the
client and family clearly and simply. Clear teaching improves cooperation and reduces anxiety.
2. A patient with chronic obstructive pulmonary disease (COPD) is most likely to present
with which acid-base imbalance?
A. Respiratory Acidosis
B. Metabolic Alkalosis
C. Respiratory Alkalosis
D. is most likely to present with which acid-base imbalance?
Answer: A
Rationale: COPD leads to hypoventilation and CO2 retention, causing a decrease in pH, which
characterizes respiratory acidosis. This is important because the nurse must choose the action that
keeps the client safest while still meeting their basic needs. Always think about safety first when
answering these questions. Understanding this helps the nurse notice early warning signs and act
before the problem gets worse. Early action often prevents bigger complications for the client.
Exam (Elaborations) • Detailed Rationales Page 2
, SCI 225 Pathophysiology Final Exam Comprehensive … 2026/2027 • Verified • Assured Grade A+
3. What is the primary mechanism of cellular injury caused by hypoxia?
A. Failure of the sodium-potassium pump
B. Increased intracellular pH
C. Rapid increase in ATP production
D. Decreased intracellular sodium concentration
Answer: A
Rationale: Hypoxia leads to ATP depletion, which causes the Na+/K+ pump to fail, resulting in cellular
swelling as sodium and water enter the cell. This is important because the nurse must choose the
action that keeps the client safest while still meeting their basic needs. Always think about safety first
when answering these questions. Understanding this helps the nurse notice early warning signs and
act before the problem gets worse. Early action often prevents bigger complications for the client.
4. In the TNM staging system for cancer, what does the ‘N’ represent?
A. Regional lymph node involvement
B. Neoplasm grade
C. Necrosis level
D. Number of primary tumors
Answer: A
Rationale: In TNM staging, T stands for Tumor size, N for regional lymph Node involvement, and M for
Metastasis. This knowledge supports safe care and helps the nurse teach the client and family clearly
and simply. Clear teaching improves cooperation and reduces anxiety. This knowledge supports safe
care and helps the nurse teach the client and family clearly and simply. Clear teaching improves
cooperation and reduces anxiety.
Exam (Elaborations) • Detailed Rationales Page 3
