Page 1 of 47
NR 507 MIDTERM EXAM – 2026 ADVANCED
PATHOPHYSIOLOGY COMPLETE (120) CURRENT TESTING
QUESTIONS AND CORRECT ANSWERS WITH DETAILED
RATIONALES.
PATHOPHYSIOLOGY
Prepare with confidence for the NR 507 Midterm Exam – Advanced Pathophysiology
Examination using this comprehensive study resource. This PDF reviews essential
pathophysiology concepts, disease processes, physiological mechanisms, and other
key topics commonly assessed on the exam. It is ideal for self-study, course revision,
and reinforcing critical knowledge before test day. A valuable resource for students
seeking to strengthen their understanding and improve their exam readiness.
MULTIPLE CHOICE.
SECTION A: CELLULAR ADAPTATION, INJURY & NEOPLASIA (Questions 1-
25)
1. A patient with chronic hypertension has an enlarged heart. This
increase in muscle mass is primarily due to which cellular adaptation?
A) Hyperplasia
B) Metaplasia
C) Hypertrophy
D) Dysplasia
Correct Answer: C
Rationale: Hypertrophy is an increase in the size of cells, leading to an
enlarged organ. Cardiac muscle cells are terminally differentiated and cannot
divide (hyperplasia), so they adapt to increased workload through
hypertrophy. This is the primary mechanism by which the heart compensates
for chronic pressure overload in hypertension.
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2. A chronic smoker develops a change in bronchial epithelium from
ciliated columnar to stratified squamous cells. This is an example of:
A) Hyperplasia
B) Hypertrophy
C) Atrophy
D) Metaplasia
Correct Answer: D
Rationale: Metaplasia is a reversible change where one differentiated cell
type is replaced by another. The bronchial epithelium undergoes squamous
metaplasia in response to chronic irritation from cigarette smoke. This
replacement provides increased protection but impairs mucociliary
clearance.
3. Which cellular change is characteristic of reversible cell injury?
A) Nuclear fragmentation
B) Cellular swelling and fatty change
C) Lysosomal rupture
D) Plasma membrane disruption
Correct Answer: B
Rationale: Reversible cell injury manifests as cellular swelling (hydropic
change) due to impaired Na+/K+ pump function and fatty change from lipid
accumulation. Irreversible injury involves nuclear changes (pyknosis,
karyorrhexis, karyolysis) and membrane disruption.
4. Which form of necrosis is most commonly seen following myocardial
infarction?
A) Liquefactive necrosis
B) Coagulative necrosis
C) Caseous necrosis
D) Fat necrosis
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Correct Answer: B
Rationale: Coagulative necrosis is characteristic of ischemic injury in solid
organs such as the heart (myocardial infarction), kidney, and liver. Protein
denaturation preserves tissue architecture for several days. Brain tissue
typically undergoes liquefactive necrosis.
5. Which type of necrosis is most common in the brain following
ischemia?
A) Coagulative necrosis
B) Liquefactive necrosis
C) Caseous necrosis
D) Fat necrosis
Correct Answer: B
Rationale: Brain tissue liquefies due to enzymatic digestion during ischemic
injury, characteristic of liquefactive necrosis. This results in the formation of
cystic spaces filled with fluid and cellular debris. The central nervous system
contains little connective tissue, allowing enzymatic digestion to proceed
rapidly.
6. The irreversible point in cellular injury where cell death is inevitable,
even if the stressor is removed, is known as the:
A) Point of no return
B) Cellular apoptosis threshold
C) Necrotic point
D) Ischemic threshold
Correct Answer: A
Rationale: The "point of no return" is a key concept in cellular injury where
mitochondrial damage becomes so severe that ATP production ceases
entirely, leading to irreversible membrane and DNA damage. Once this point is
reached, cell death is inevitable regardless of intervention.
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7. Which of the following is a characteristic feature of apoptosis?
A) Elicits a significant inflammatory response
B) Results in cellular swelling and rupture
C) Involves organized cell shrinkage and fragmentation
D) Is always a pathological process
Correct Answer: C
Rationale: Apoptosis is a programmed, controlled cell death that does not
cause inflammation. It involves organized cell shrinkage, membrane blebbing,
and fragmentation into apoptotic bodies that are phagocytosed without
triggering an inflammatory response. Necrosis is characterized by cell
swelling, rupture, and inflammation.
8. A patient with a gunshot wound has tattooing and stippling noted on
examination. This finding indicates:
A) Entrance wound from a high-velocity weapon
B) Gunpowder particles around the entrance wound
C) Exit wound characteristics
D) Close-range shotgun injury
Correct Answer: B
Rationale: Tattooing and stippling are caused by gunpowder particles
deposited on the skin surrounding the entrance wound. These findings help
determine the distance from which the weapon was fired.
9. A patient has hypoxic injury to the brain resulting in liquefactive
necrosis. Which assessment finding would the nurse expect?
A) Fever and nuchal rigidity
B) Cystic cavity formation in brain tissue
C) Calcification of brain tissue
D) Granuloma formation
NR 507 MIDTERM EXAM – 2026 ADVANCED
PATHOPHYSIOLOGY COMPLETE (120) CURRENT TESTING
QUESTIONS AND CORRECT ANSWERS WITH DETAILED
RATIONALES.
PATHOPHYSIOLOGY
Prepare with confidence for the NR 507 Midterm Exam – Advanced Pathophysiology
Examination using this comprehensive study resource. This PDF reviews essential
pathophysiology concepts, disease processes, physiological mechanisms, and other
key topics commonly assessed on the exam. It is ideal for self-study, course revision,
and reinforcing critical knowledge before test day. A valuable resource for students
seeking to strengthen their understanding and improve their exam readiness.
MULTIPLE CHOICE.
SECTION A: CELLULAR ADAPTATION, INJURY & NEOPLASIA (Questions 1-
25)
1. A patient with chronic hypertension has an enlarged heart. This
increase in muscle mass is primarily due to which cellular adaptation?
A) Hyperplasia
B) Metaplasia
C) Hypertrophy
D) Dysplasia
Correct Answer: C
Rationale: Hypertrophy is an increase in the size of cells, leading to an
enlarged organ. Cardiac muscle cells are terminally differentiated and cannot
divide (hyperplasia), so they adapt to increased workload through
hypertrophy. This is the primary mechanism by which the heart compensates
for chronic pressure overload in hypertension.
, Page 2 of 47
2. A chronic smoker develops a change in bronchial epithelium from
ciliated columnar to stratified squamous cells. This is an example of:
A) Hyperplasia
B) Hypertrophy
C) Atrophy
D) Metaplasia
Correct Answer: D
Rationale: Metaplasia is a reversible change where one differentiated cell
type is replaced by another. The bronchial epithelium undergoes squamous
metaplasia in response to chronic irritation from cigarette smoke. This
replacement provides increased protection but impairs mucociliary
clearance.
3. Which cellular change is characteristic of reversible cell injury?
A) Nuclear fragmentation
B) Cellular swelling and fatty change
C) Lysosomal rupture
D) Plasma membrane disruption
Correct Answer: B
Rationale: Reversible cell injury manifests as cellular swelling (hydropic
change) due to impaired Na+/K+ pump function and fatty change from lipid
accumulation. Irreversible injury involves nuclear changes (pyknosis,
karyorrhexis, karyolysis) and membrane disruption.
4. Which form of necrosis is most commonly seen following myocardial
infarction?
A) Liquefactive necrosis
B) Coagulative necrosis
C) Caseous necrosis
D) Fat necrosis
, Page 3 of 47
Correct Answer: B
Rationale: Coagulative necrosis is characteristic of ischemic injury in solid
organs such as the heart (myocardial infarction), kidney, and liver. Protein
denaturation preserves tissue architecture for several days. Brain tissue
typically undergoes liquefactive necrosis.
5. Which type of necrosis is most common in the brain following
ischemia?
A) Coagulative necrosis
B) Liquefactive necrosis
C) Caseous necrosis
D) Fat necrosis
Correct Answer: B
Rationale: Brain tissue liquefies due to enzymatic digestion during ischemic
injury, characteristic of liquefactive necrosis. This results in the formation of
cystic spaces filled with fluid and cellular debris. The central nervous system
contains little connective tissue, allowing enzymatic digestion to proceed
rapidly.
6. The irreversible point in cellular injury where cell death is inevitable,
even if the stressor is removed, is known as the:
A) Point of no return
B) Cellular apoptosis threshold
C) Necrotic point
D) Ischemic threshold
Correct Answer: A
Rationale: The "point of no return" is a key concept in cellular injury where
mitochondrial damage becomes so severe that ATP production ceases
entirely, leading to irreversible membrane and DNA damage. Once this point is
reached, cell death is inevitable regardless of intervention.
, Page 4 of 47
7. Which of the following is a characteristic feature of apoptosis?
A) Elicits a significant inflammatory response
B) Results in cellular swelling and rupture
C) Involves organized cell shrinkage and fragmentation
D) Is always a pathological process
Correct Answer: C
Rationale: Apoptosis is a programmed, controlled cell death that does not
cause inflammation. It involves organized cell shrinkage, membrane blebbing,
and fragmentation into apoptotic bodies that are phagocytosed without
triggering an inflammatory response. Necrosis is characterized by cell
swelling, rupture, and inflammation.
8. A patient with a gunshot wound has tattooing and stippling noted on
examination. This finding indicates:
A) Entrance wound from a high-velocity weapon
B) Gunpowder particles around the entrance wound
C) Exit wound characteristics
D) Close-range shotgun injury
Correct Answer: B
Rationale: Tattooing and stippling are caused by gunpowder particles
deposited on the skin surrounding the entrance wound. These findings help
determine the distance from which the weapon was fired.
9. A patient has hypoxic injury to the brain resulting in liquefactive
necrosis. Which assessment finding would the nurse expect?
A) Fever and nuchal rigidity
B) Cystic cavity formation in brain tissue
C) Calcification of brain tissue
D) Granuloma formation
