SCI 225 Pathophysiology Midterm Exam 2026/2027 UP… 2026/2027 • Verified • Assured Grade A+
✓ VERIFIED • 2026/2027 UPDATE • 100% ACCURATE
SCI 225 Pathophysiology Midterm Exam 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 Midterm Exam 2026/2027 UP… 2026/2027 • Verified • Assured Grade A+
Questions & Verified Answers
1. Which cellular adaptation is characterized by a reversible replacement of one mature cell
type by another mature cell type, often due to chronic irritation?
A. Dysplasia
B. Atrophy
C. Hypertrophy
D. Metaplasia
Answer: D
Rationale: Metaplasia is a reversible change in which one adult cell type (epithelial or mesenchymal)
is replaced by another adult cell type better able to withstand the adverse environment. 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 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.
2. In the process of programmed cell death, which enzyme family is primarily responsible for
initiating and executing cellular degradation?
A. Kinases
B. Caspases
C. Polymerases
D. Lipases
Answer: B
Rationale: Apoptosis is mediated by the caspase family of proteases, which cleave specific proteins in
the cytoplasm and nucleus, leading to cell death without eliciting an inflammatory response.
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. Remembering this point will help you
decide the best nursing action when similar questions appear on the exam. Link the answer to the
client’s current condition and risk level.
Exam (Elaborations) • Detailed Rationales Page 2
, SCI 225 Pathophysiology Midterm Exam 2026/2027 UP… 2026/2027 • Verified • Assured Grade A+
3. Which type of necrosis is most commonly associated with hypoxic injury in the brain?
A. Coagulative necrosis
B. Liquefactive necrosis
C. Caseous necrosis
D. Fat necrosis
Answer: B
Rationale: Liquefactive necrosis is characteristic of focal bacterial or fungal infections and is also the
typical pattern of cell death in the central nervous system following hypoxic injury. 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 questions often test whether you can pick the most
practical and safe choice for the client in real situations. Focus on what the nurse can actually do right
now.
4. Which immunoglobulin is the primary mediator of Type I hypersensitivity reactions, such
as allergic asthma and anaphylaxis?
A. IgG
B. IgM
C. IgE
D. IgA
Answer: C
Rationale: Type I hypersensitivity is mediated by IgE antibodies, which bind to mast cells and
basophils, triggering the release of inflammatory mediators like histamine. 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. In practice, this guides the nurse to set priorities and protect
the client from harm. Safety, nutrition, and clear communication are frequent priorities.
Exam (Elaborations) • Detailed Rationales Page 3
✓ VERIFIED • 2026/2027 UPDATE • 100% ACCURATE
SCI 225 Pathophysiology Midterm Exam 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 Midterm Exam 2026/2027 UP… 2026/2027 • Verified • Assured Grade A+
Questions & Verified Answers
1. Which cellular adaptation is characterized by a reversible replacement of one mature cell
type by another mature cell type, often due to chronic irritation?
A. Dysplasia
B. Atrophy
C. Hypertrophy
D. Metaplasia
Answer: D
Rationale: Metaplasia is a reversible change in which one adult cell type (epithelial or mesenchymal)
is replaced by another adult cell type better able to withstand the adverse environment. 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 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.
2. In the process of programmed cell death, which enzyme family is primarily responsible for
initiating and executing cellular degradation?
A. Kinases
B. Caspases
C. Polymerases
D. Lipases
Answer: B
Rationale: Apoptosis is mediated by the caspase family of proteases, which cleave specific proteins in
the cytoplasm and nucleus, leading to cell death without eliciting an inflammatory response.
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. Remembering this point will help you
decide the best nursing action when similar questions appear on the exam. Link the answer to the
client’s current condition and risk level.
Exam (Elaborations) • Detailed Rationales Page 2
, SCI 225 Pathophysiology Midterm Exam 2026/2027 UP… 2026/2027 • Verified • Assured Grade A+
3. Which type of necrosis is most commonly associated with hypoxic injury in the brain?
A. Coagulative necrosis
B. Liquefactive necrosis
C. Caseous necrosis
D. Fat necrosis
Answer: B
Rationale: Liquefactive necrosis is characteristic of focal bacterial or fungal infections and is also the
typical pattern of cell death in the central nervous system following hypoxic injury. 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 questions often test whether you can pick the most
practical and safe choice for the client in real situations. Focus on what the nurse can actually do right
now.
4. Which immunoglobulin is the primary mediator of Type I hypersensitivity reactions, such
as allergic asthma and anaphylaxis?
A. IgG
B. IgM
C. IgE
D. IgA
Answer: C
Rationale: Type I hypersensitivity is mediated by IgE antibodies, which bind to mast cells and
basophils, triggering the release of inflammatory mediators like histamine. 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. In practice, this guides the nurse to set priorities and protect
the client from harm. Safety, nutrition, and clear communication are frequent priorities.
Exam (Elaborations) • Detailed Rationales Page 3
