NURS 611 Exam 1 Patho Review 2026
| Verified Questions, Answers &
Comprehensive Rationales
THIS EXAM INCLUDES:
• Core pathophysiology concepts and disease mechanisms
• Infection, sepsis, shock, and multisystem dysfunction topics
• Case-study based NCLEX-style application questions
• Detailed answer explanations with clinical rationales
• Updated 2026 study content for NURS 611 Exam 1 preparation
,NURS 611 Exam 1
Section 1: Cellular Adaptation & Injury (Questions 1–15)
1. A patient with chronic hypertension develops thickened left ventricular
muscle. This is an example of:
A. Hyperplasia
B. Metaplasia
C. Hypertrophy
D. Dysplasia
Answer: C. Hypertrophy
Rationale: Hypertrophy is an increase in cell size leading to organ enlargement,
often in response to increased workload (e.g., hypertension). Hyperplasia is
increased cell number; metaplasia is reversible change of cell type; dysplasia is
disordered growth.
2. Barrett esophagus, where squamous epithelium is replaced by columnar
epithelium, represents:
A. Neoplasia
B. Metaplasia
C. Atrophy
D. Anaplasia
Answer: B. Metaplasia
Rationale: Metaplasia is a reversible substitution of one differentiated cell type
for another, often due to chronic irritation (GERD). This is an adaptive response
but increases risk for dysplasia/cancer.
3. Which cellular change is most likely to be irreversible and lead to cell death?
A. Cell swelling
B. Fatty change
C. Plasma membrane rupture
D. Ribosomal detachment
Answer: C. Plasma membrane rupture
Rationale: Loss of membrane integrity is a point of no return. Cell swelling, fatty
change, and ribosomal detachment are reversible if the insult is removed.
,4. During ischemia, the switch to anaerobic metabolism results in:
A. Increased ATP production
B. Decreased intracellular pH
C. Alkalosis
D. Increased glycogen synthesis
Answer: B. Decreased intracellular pH
Rationale: Anaerobic glycolysis produces lactic acid and only 2 ATP/glucose vs. 36
ATP aerobically. Accumulated lactic acid lowers pH, damaging enzymes and
chromatin.
5. Caseous necrosis, characterized by soft, friable, yellow-white debris, is
classically seen in:
A. Brain infarction
B. Tuberculosis
C. Ischemic limb
D. Acute pancreatitis
Answer: B. Tuberculosis
Rationale: Caseous necrosis (cheese-like) is a combination of coagulative and
liquefactive necrosis, typical of TB. Brain infarct → liquefactive; limb ischemia →
coagulative; pancreatitis → fat necrosis.
6. Which intracellular system is first affected by hypoxia?
A. Lysosomal enzymes
B. Mitochondrial oxidative phosphorylation
C. Cytoskeletal proteins
D. DNA repair enzymes
Answer: B. Mitochondrial oxidative phosphorylation
Rationale: Hypoxia reduces oxygen for electron transport chain → decreased ATP
production → failure of Na+/K+ pump → cell swelling → eventual death.
7. Free radical injury is implicated in reperfusion injury because:
A. Oxygen radicals form upon reoxygenation
B. ATP synthesis increases
C. pH normalizes immediately
D. Calcium is depleted
, Answer: A. Oxygen radicals form upon reoxygenation
Rationale: Reperfusion reintroduces oxygen, which is converted to superoxide,
H2O2, and hydroxyl radicals by damaged mitochondria and xanthine oxidase,
exacerbating injury.
8. Dystrophic calcification is characterized by:
A. Hypercalcemia
B. Deposition in damaged tissue with normal serum calcium
C. Deposition in normal tissue with hypercalcemia
D. Reversible calcification
Answer: B. Deposition in damaged tissue with normal serum calcium
Rationale: Dystrophic calcification occurs in necrotic/degenerated tissue despite
normal calcium levels (e.g., atherosclerotic plaques, damaged heart valves).
9. In alcoholic liver disease, hepatocytes show large fat vacuoles displacing the
nucleus. This is:
A. Hydropic change
B. Fatty change (steatosis)
C. Hyaline change
D. Glycogen accumulation
Answer: B. Fatty change (steatosis)
Rationale: Toxic injury (alcohol) impairs fatty acid oxidation and lipoprotein
synthesis → accumulation of triglycerides in vacuoles.
10. Apoptosis differs from necrosis in that apoptosis:
A. Causes inflammation
B. Is always pathologic
C. Is energy-dependent and organized
D. Affects groups of cells
Answer: C. Is energy-dependent and organized
Rationale: Apoptosis is programmed cell death requiring ATP, with membrane
blebbing, nuclear fragmentation, and phagocytosis without inflammation.
11. Which of the following is a physiologic example of apoptosis?
A. Myocardial infarction
B. Neutrophil death in pus
| Verified Questions, Answers &
Comprehensive Rationales
THIS EXAM INCLUDES:
• Core pathophysiology concepts and disease mechanisms
• Infection, sepsis, shock, and multisystem dysfunction topics
• Case-study based NCLEX-style application questions
• Detailed answer explanations with clinical rationales
• Updated 2026 study content for NURS 611 Exam 1 preparation
,NURS 611 Exam 1
Section 1: Cellular Adaptation & Injury (Questions 1–15)
1. A patient with chronic hypertension develops thickened left ventricular
muscle. This is an example of:
A. Hyperplasia
B. Metaplasia
C. Hypertrophy
D. Dysplasia
Answer: C. Hypertrophy
Rationale: Hypertrophy is an increase in cell size leading to organ enlargement,
often in response to increased workload (e.g., hypertension). Hyperplasia is
increased cell number; metaplasia is reversible change of cell type; dysplasia is
disordered growth.
2. Barrett esophagus, where squamous epithelium is replaced by columnar
epithelium, represents:
A. Neoplasia
B. Metaplasia
C. Atrophy
D. Anaplasia
Answer: B. Metaplasia
Rationale: Metaplasia is a reversible substitution of one differentiated cell type
for another, often due to chronic irritation (GERD). This is an adaptive response
but increases risk for dysplasia/cancer.
3. Which cellular change is most likely to be irreversible and lead to cell death?
A. Cell swelling
B. Fatty change
C. Plasma membrane rupture
D. Ribosomal detachment
Answer: C. Plasma membrane rupture
Rationale: Loss of membrane integrity is a point of no return. Cell swelling, fatty
change, and ribosomal detachment are reversible if the insult is removed.
,4. During ischemia, the switch to anaerobic metabolism results in:
A. Increased ATP production
B. Decreased intracellular pH
C. Alkalosis
D. Increased glycogen synthesis
Answer: B. Decreased intracellular pH
Rationale: Anaerobic glycolysis produces lactic acid and only 2 ATP/glucose vs. 36
ATP aerobically. Accumulated lactic acid lowers pH, damaging enzymes and
chromatin.
5. Caseous necrosis, characterized by soft, friable, yellow-white debris, is
classically seen in:
A. Brain infarction
B. Tuberculosis
C. Ischemic limb
D. Acute pancreatitis
Answer: B. Tuberculosis
Rationale: Caseous necrosis (cheese-like) is a combination of coagulative and
liquefactive necrosis, typical of TB. Brain infarct → liquefactive; limb ischemia →
coagulative; pancreatitis → fat necrosis.
6. Which intracellular system is first affected by hypoxia?
A. Lysosomal enzymes
B. Mitochondrial oxidative phosphorylation
C. Cytoskeletal proteins
D. DNA repair enzymes
Answer: B. Mitochondrial oxidative phosphorylation
Rationale: Hypoxia reduces oxygen for electron transport chain → decreased ATP
production → failure of Na+/K+ pump → cell swelling → eventual death.
7. Free radical injury is implicated in reperfusion injury because:
A. Oxygen radicals form upon reoxygenation
B. ATP synthesis increases
C. pH normalizes immediately
D. Calcium is depleted
, Answer: A. Oxygen radicals form upon reoxygenation
Rationale: Reperfusion reintroduces oxygen, which is converted to superoxide,
H2O2, and hydroxyl radicals by damaged mitochondria and xanthine oxidase,
exacerbating injury.
8. Dystrophic calcification is characterized by:
A. Hypercalcemia
B. Deposition in damaged tissue with normal serum calcium
C. Deposition in normal tissue with hypercalcemia
D. Reversible calcification
Answer: B. Deposition in damaged tissue with normal serum calcium
Rationale: Dystrophic calcification occurs in necrotic/degenerated tissue despite
normal calcium levels (e.g., atherosclerotic plaques, damaged heart valves).
9. In alcoholic liver disease, hepatocytes show large fat vacuoles displacing the
nucleus. This is:
A. Hydropic change
B. Fatty change (steatosis)
C. Hyaline change
D. Glycogen accumulation
Answer: B. Fatty change (steatosis)
Rationale: Toxic injury (alcohol) impairs fatty acid oxidation and lipoprotein
synthesis → accumulation of triglycerides in vacuoles.
10. Apoptosis differs from necrosis in that apoptosis:
A. Causes inflammation
B. Is always pathologic
C. Is energy-dependent and organized
D. Affects groups of cells
Answer: C. Is energy-dependent and organized
Rationale: Apoptosis is programmed cell death requiring ATP, with membrane
blebbing, nuclear fragmentation, and phagocytosis without inflammation.
11. Which of the following is a physiologic example of apoptosis?
A. Myocardial infarction
B. Neutrophil death in pus
