SCI 225 Pathophysiology Midterm Mastery Exam 2026… 2026/2027 • Verified • Assured Grade A+
✓ VERIFIED • 2026/2027 UPDATE • 100% ACCURATE
SCI 225 Pathophysiology Midterm Mastery 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 Mastery Exam 2026… 2026/2027 • Verified • Assured Grade A+
Questions & Verified Answers
1. A 55-year-old male smoker presents with a persistent cough. A biopsy of his bronchial
epithelium reveals that normal ciliated columnar cells have been replaced by stratified
squamous epithelial cells. This process is best described as:
A. Metaplasia
B. Dysplasia
C. Hyperplasia
D. Anaplasia
Answer: A
Rationale: Metaplasia is the reversible replacement of one mature cell type by another, often as an
adaptation to chronic irritation, such as smoking. In practice, this guides the nurse to set priorities and
protect the client from harm. Safety, nutrition, and clear communication are frequent priorities. 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. Which of the following describes a cellular response to hypoxic injury where there is a
failure of the sodium-potassium pump, leading to cellular swelling?
A. Pyoptosis
B. Apoptosis
C. Autophagy
D. Oncosis
Answer: D
Rationale: Oncosis, or ischemic cell death, occurs when ATP depletion causes the Na+/K+ pump to
fail, leading to an influx of water and cellular swelling. 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.
Exam (Elaborations) • Detailed Rationales Page 2
, SCI 225 Pathophysiology Midterm Mastery Exam 2026… 2026/2027 • Verified • Assured Grade A+
3. In the General Adaptation Syndrome (GAS) described by Hans Selye, which stage is
characterized by the ‘fight-or-flight’ response involving the activation of the sympathetic
nervous system?
A. Exhaustion stage
B. Resistance stage
C. Alarm stage
D. Adaptation stage
Answer: C
Rationale: The alarm stage is the initial response to a stressor, triggering the
hypothalamus-pituitary-adrenal (HPA) axis and the sympathetic nervous system. 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. In practice, this guides the nurse to set priorities and
protect the client from harm. Safety, nutrition, and clear communication are frequent priorities.
4. A patient presents with a potassium level of 6.2 mEq/L. Which of the following ECG
changes is most likely to be observed?
A. Prominent U waves
B. Prolonged QT interval
C. ST-segment depression
D. Tall, peaked T waves
Answer: D
Rationale: Hyperkalemia (K+ > 5.0) typically causes tall, peaked T waves due to faster repolarization
of the heart. 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 3
✓ VERIFIED • 2026/2027 UPDATE • 100% ACCURATE
SCI 225 Pathophysiology Midterm Mastery 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 Mastery Exam 2026… 2026/2027 • Verified • Assured Grade A+
Questions & Verified Answers
1. A 55-year-old male smoker presents with a persistent cough. A biopsy of his bronchial
epithelium reveals that normal ciliated columnar cells have been replaced by stratified
squamous epithelial cells. This process is best described as:
A. Metaplasia
B. Dysplasia
C. Hyperplasia
D. Anaplasia
Answer: A
Rationale: Metaplasia is the reversible replacement of one mature cell type by another, often as an
adaptation to chronic irritation, such as smoking. In practice, this guides the nurse to set priorities and
protect the client from harm. Safety, nutrition, and clear communication are frequent priorities. 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. Which of the following describes a cellular response to hypoxic injury where there is a
failure of the sodium-potassium pump, leading to cellular swelling?
A. Pyoptosis
B. Apoptosis
C. Autophagy
D. Oncosis
Answer: D
Rationale: Oncosis, or ischemic cell death, occurs when ATP depletion causes the Na+/K+ pump to
fail, leading to an influx of water and cellular swelling. 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.
Exam (Elaborations) • Detailed Rationales Page 2
, SCI 225 Pathophysiology Midterm Mastery Exam 2026… 2026/2027 • Verified • Assured Grade A+
3. In the General Adaptation Syndrome (GAS) described by Hans Selye, which stage is
characterized by the ‘fight-or-flight’ response involving the activation of the sympathetic
nervous system?
A. Exhaustion stage
B. Resistance stage
C. Alarm stage
D. Adaptation stage
Answer: C
Rationale: The alarm stage is the initial response to a stressor, triggering the
hypothalamus-pituitary-adrenal (HPA) axis and the sympathetic nervous system. 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. In practice, this guides the nurse to set priorities and
protect the client from harm. Safety, nutrition, and clear communication are frequent priorities.
4. A patient presents with a potassium level of 6.2 mEq/L. Which of the following ECG
changes is most likely to be observed?
A. Prominent U waves
B. Prolonged QT interval
C. ST-segment depression
D. Tall, peaked T waves
Answer: D
Rationale: Hyperkalemia (K+ > 5.0) typically causes tall, peaked T waves due to faster repolarization
of the heart. 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 3
