1
NSG530 / NSG 530 Exam 1 | Advanced
Pathophysiology | Wilkes University (NEW
2025/2026 Update) Questions & Verified Answers
with Rationales | Grade A | 100% Correct
Below is a comprehensive set of exam questions and answers for NSG 530 Exam 1: Advanced Pathophysiology at
Wilkes University, based on the latest 2025/2026 curriculum. Each answer is followed by a detailed rationale to
reinforce key pathophysiological concepts.
Cellular Injury & Adaptation
Q1. Hypoxic injury is best defined as:
• A) Injury caused by physical trauma to cells
• B) Lack of sufficient oxygen within cells, the single most common cause of cellular injury
• C) Damage resulting from free radical accumulation
• D) Injury caused by genetic mutations
☑ Correct Answer: B) Lack of sufficient oxygen within cells, the single most common
cause of cellular injury
Rationale: Hypoxic injury occurs when cells are deprived of adequate oxygen. This is the most
frequent mechanism of cellular injury because oxygen is essential for aerobic metabolism and
ATP production. Without sufficient oxygen, cellular functions fail, leading to injury or death.
,2
Q2. Which term describes a deficiency in the amount of oxygen reaching tissues?
• A) Ischemia
• B) Anoxia
• C) Hypoxia
• D) Necrosis
☑ Correct Answer: C) Hypoxia
Rationale: Hypoxia refers specifically to reduced oxygen availability at the tissue level. It can
result from decreased oxygen in the air, reduced hemoglobin efficacy, decreased red blood
cells, or disease states. Hypoxia plays a role in cell differentiation, angiogenesis, proliferation,
and inflammation.
Q3. What is the primary cause of ischemia?
• A) Reduced oxygen in inspired air
• B) Reduced blood supply to tissues
• C) Anemia
• D) Carbon monoxide poisoning
☑ Correct Answer: B) Reduced blood supply to tissues
,3
Rationale: Ischemia is defined as reduced blood supply to tissues, most commonly caused by
narrowing of arteries (arteriosclerosis) or blockage by blood clots. Ischemia is the most
common cause of hypoxia.
Q4. What is reperfusion injury?
• A) Injury caused by lack of blood flow
• B) Injury that occurs when oxygen is reintroduced to ischemic tissue
• C) Injury from bacterial toxins
• D) Injury caused by physical trauma
☑ Correct Answer: B) Injury that occurs when oxygen is reintroduced to ischemic tissue
Rationale: Reperfusion injury occurs when oxygen is restored to tissues after a period of
ischemia. The sudden reintroduction of oxygen leads to the formation of reactive oxygen
species, causing additional cellular damage beyond that caused by the initial ischemia.
Q5. A patient with chronic alcoholism presents with confusion, ataxia, and
ophthalmoplegia—the triad characteristic of Wernicke's encephalopathy. Which cellular
process is most directly affected?
• A) Oxidative phosphorylation in the mitochondria
• B) Thiamine-dependent enzymatic reactions in the Krebs cycle
, 4
• C) DNA repair mechanisms in the nucleus
• D) Ribosomal protein synthesis
☑ Correct Answer: B) Thiamine-dependent enzymatic reactions in the Krebs cycle
Rationale: Wernicke's encephalopathy results from thiamine (vitamin B1) deficiency. Thiamine
is a critical cofactor for pyruvate dehydrogenase and alpha-ketoglutarate dehydrogenase in the
Krebs cycle. Without thiamine, energy production in neurons is severely impaired, leading to
the characteristic neurologic symptoms.
Q6. A biopsy of a chronic wound shows abundant granulation tissue with many small blood
vessels and fibroblasts. This phase of wound healing is called:
• A) Hemostasis
• B) Inflammatory phase
• C) Proliferative phase
• D) Maturation phase
☑ Correct Answer: C) Proliferative phase
Rationale: The proliferative phase (days 3–21 of wound healing) is characterized by
angiogenesis (formation of new blood vessels), fibroplasia (fibroblast proliferation), and the
formation of granulation tissue—the red, granular tissue seen in healing wounds.
NSG530 / NSG 530 Exam 1 | Advanced
Pathophysiology | Wilkes University (NEW
2025/2026 Update) Questions & Verified Answers
with Rationales | Grade A | 100% Correct
Below is a comprehensive set of exam questions and answers for NSG 530 Exam 1: Advanced Pathophysiology at
Wilkes University, based on the latest 2025/2026 curriculum. Each answer is followed by a detailed rationale to
reinforce key pathophysiological concepts.
Cellular Injury & Adaptation
Q1. Hypoxic injury is best defined as:
• A) Injury caused by physical trauma to cells
• B) Lack of sufficient oxygen within cells, the single most common cause of cellular injury
• C) Damage resulting from free radical accumulation
• D) Injury caused by genetic mutations
☑ Correct Answer: B) Lack of sufficient oxygen within cells, the single most common
cause of cellular injury
Rationale: Hypoxic injury occurs when cells are deprived of adequate oxygen. This is the most
frequent mechanism of cellular injury because oxygen is essential for aerobic metabolism and
ATP production. Without sufficient oxygen, cellular functions fail, leading to injury or death.
,2
Q2. Which term describes a deficiency in the amount of oxygen reaching tissues?
• A) Ischemia
• B) Anoxia
• C) Hypoxia
• D) Necrosis
☑ Correct Answer: C) Hypoxia
Rationale: Hypoxia refers specifically to reduced oxygen availability at the tissue level. It can
result from decreased oxygen in the air, reduced hemoglobin efficacy, decreased red blood
cells, or disease states. Hypoxia plays a role in cell differentiation, angiogenesis, proliferation,
and inflammation.
Q3. What is the primary cause of ischemia?
• A) Reduced oxygen in inspired air
• B) Reduced blood supply to tissues
• C) Anemia
• D) Carbon monoxide poisoning
☑ Correct Answer: B) Reduced blood supply to tissues
,3
Rationale: Ischemia is defined as reduced blood supply to tissues, most commonly caused by
narrowing of arteries (arteriosclerosis) or blockage by blood clots. Ischemia is the most
common cause of hypoxia.
Q4. What is reperfusion injury?
• A) Injury caused by lack of blood flow
• B) Injury that occurs when oxygen is reintroduced to ischemic tissue
• C) Injury from bacterial toxins
• D) Injury caused by physical trauma
☑ Correct Answer: B) Injury that occurs when oxygen is reintroduced to ischemic tissue
Rationale: Reperfusion injury occurs when oxygen is restored to tissues after a period of
ischemia. The sudden reintroduction of oxygen leads to the formation of reactive oxygen
species, causing additional cellular damage beyond that caused by the initial ischemia.
Q5. A patient with chronic alcoholism presents with confusion, ataxia, and
ophthalmoplegia—the triad characteristic of Wernicke's encephalopathy. Which cellular
process is most directly affected?
• A) Oxidative phosphorylation in the mitochondria
• B) Thiamine-dependent enzymatic reactions in the Krebs cycle
, 4
• C) DNA repair mechanisms in the nucleus
• D) Ribosomal protein synthesis
☑ Correct Answer: B) Thiamine-dependent enzymatic reactions in the Krebs cycle
Rationale: Wernicke's encephalopathy results from thiamine (vitamin B1) deficiency. Thiamine
is a critical cofactor for pyruvate dehydrogenase and alpha-ketoglutarate dehydrogenase in the
Krebs cycle. Without thiamine, energy production in neurons is severely impaired, leading to
the characteristic neurologic symptoms.
Q6. A biopsy of a chronic wound shows abundant granulation tissue with many small blood
vessels and fibroblasts. This phase of wound healing is called:
• A) Hemostasis
• B) Inflammatory phase
• C) Proliferative phase
• D) Maturation phase
☑ Correct Answer: C) Proliferative phase
Rationale: The proliferative phase (days 3–21 of wound healing) is characterized by
angiogenesis (formation of new blood vessels), fibroplasia (fibroblast proliferation), and the
formation of granulation tissue—the red, granular tissue seen in healing wounds.
