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2026 Chamberlain University NR507 Advanced
Pathophysiology Midterm Exam
Complete Practice Q&A Bank (1-250) with Verified
Answers & Detailed Rationales
Updated for 2026 | Guaranteed Pass Study Guide
Question 1:
A patient with chronic hypertension presents with an enlarged left ventricle on
echocardiogram. This increase in cardiac muscle mass is primarily due to which cellular
adaptation?
A) Hyperplasia
B) Metaplasia
C) Hypertrophy
D) Dysplasia
Correct Answer: C) Hypertrophy
Rationale: Hypertrophy is an increase in the size of cells, leading to an enlarged organ.
Cardiac muscle cells are terminally differentiated and cannot divide, so they adapt to
increased workload (pressure overload from hypertension) through hypertrophy.
Hyperplasia would require cell division, which cardiac myocytes cannot perform.
Metaplasia involves replacement of one cell type with another, and dysplasia refers to
abnormal cellular growth patterns .
Question 2:
A patient who smokes has a change in the bronchial epithelium from ciliated columnar
to stratified squamous. This is an example of:
A) Hyperplasia
B) Hypertrophy
Sure pass
,2
C) Atrophy
D) Metaplasia
Correct Answer: D) Metaplasia
Rationale: Metaplasia is the reversible replacement of one differentiated cell type with
another in response to chronic irritation. In the respiratory tract, chronic irritation from
smoking causes columnar epithelium to be replaced by stratified squamous epithelium as
an adaptive response. This change is potentially reversible if the irritant is removed, but it
increases cancer risk due to loss of protective ciliary function and potential progression to
dysplasia .
Question 3:
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) Point of no return
Rationale: This 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.
Irreversible injury is marked by severe mitochondrial damage, loss of membrane integrity,
and nuclear changes such as pyknosis .
Question 4:
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
Sure pass
,3
Correct Answer: C) Involves organized cell shrinkage and fragmentation
Rationale: Apoptosis is programmed cell death characterized by cell shrinkage, chromatin
condensation, and fragmentation into apoptotic bodies. It does not elicit an inflammatory
response because cellular contents are contained within membrane-bound vesicles.
Necrosis involves cell swelling, membrane rupture, and inflammation. Apoptosis can be
both physiologic and pathologic .
Question 5:
Which type of necrosis is most commonly seen in myocardial infarction?
A) Liquefactive necrosis
B) Caseous necrosis
C) Coagulative necrosis
D) Fat necrosis
Correct Answer: C) Coagulative necrosis
Rationale: Coagulative necrosis is characteristic of ischemic injury in solid organs such as
the heart (myocardial infarction), kidney, and liver. In coagulative necrosis, tissue
architecture is preserved initially, and the tissue is firm. Brain typically undergoes
liquefactive necrosis. Caseous necrosis is associated with tuberculosis, and fat necrosis
occurs in pancreatitis .
Question 6:
Liquefactive necrosis is characteristic of which condition?
A) Myocardial infarction
B) Brain infarction (stroke)
C) Tuberculosis
D) Ischemic injury to the kidney
Correct Answer: B) Brain infarction (stroke)
Rationale: Liquefactive necrosis occurs in the brain due to enzymatic digestion of necrotic
tissue, forming a cystic space. The brain's high lipid content and lack of a strong
Sure pass
, 4
connective tissue framework contribute to this type of necrosis. It also occurs in bacterial
abscesses .
Question 7:
Caseous necrosis is characteristic of which condition?
A) Tuberculosis
B) Myocardial infarction
C) Pancreatitis
D) Gangrene
Correct Answer: A) Tuberculosis
Rationale: Caseous necrosis (cheese-like appearance) is characteristic of tuberculosis. It
represents a combination of coagulative and liquefactive necrosis with a granulomatous
inflammatory response. The necrotic tissue appears white and friable, resembling cottage
cheese .
Question 8:
Reversible cell injury is characterized by:
A) Nuclear fragmentation
B) Cellular swelling and fatty change
C) Lysosomal rupture
D) Plasma membrane disruption
Correct Answer: B) Cellular swelling and fatty change
Rationale: Reversible cell injury causes cellular swelling (due to impaired Na+/K+ pump)
and fatty change (due to lipid accumulation). Irreversible injury includes nuclear changes
(pyknosis, karyorrhexis, karyolysis) and membrane disruption. Reversible changes can be
corrected if the injurious stimulus is removed .
Sure pass
2026 Chamberlain University NR507 Advanced
Pathophysiology Midterm Exam
Complete Practice Q&A Bank (1-250) with Verified
Answers & Detailed Rationales
Updated for 2026 | Guaranteed Pass Study Guide
Question 1:
A patient with chronic hypertension presents with an enlarged left ventricle on
echocardiogram. This increase in cardiac muscle mass is primarily due to which cellular
adaptation?
A) Hyperplasia
B) Metaplasia
C) Hypertrophy
D) Dysplasia
Correct Answer: C) Hypertrophy
Rationale: Hypertrophy is an increase in the size of cells, leading to an enlarged organ.
Cardiac muscle cells are terminally differentiated and cannot divide, so they adapt to
increased workload (pressure overload from hypertension) through hypertrophy.
Hyperplasia would require cell division, which cardiac myocytes cannot perform.
Metaplasia involves replacement of one cell type with another, and dysplasia refers to
abnormal cellular growth patterns .
Question 2:
A patient who smokes has a change in the bronchial epithelium from ciliated columnar
to stratified squamous. This is an example of:
A) Hyperplasia
B) Hypertrophy
Sure pass
,2
C) Atrophy
D) Metaplasia
Correct Answer: D) Metaplasia
Rationale: Metaplasia is the reversible replacement of one differentiated cell type with
another in response to chronic irritation. In the respiratory tract, chronic irritation from
smoking causes columnar epithelium to be replaced by stratified squamous epithelium as
an adaptive response. This change is potentially reversible if the irritant is removed, but it
increases cancer risk due to loss of protective ciliary function and potential progression to
dysplasia .
Question 3:
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) Point of no return
Rationale: This 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.
Irreversible injury is marked by severe mitochondrial damage, loss of membrane integrity,
and nuclear changes such as pyknosis .
Question 4:
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
Sure pass
,3
Correct Answer: C) Involves organized cell shrinkage and fragmentation
Rationale: Apoptosis is programmed cell death characterized by cell shrinkage, chromatin
condensation, and fragmentation into apoptotic bodies. It does not elicit an inflammatory
response because cellular contents are contained within membrane-bound vesicles.
Necrosis involves cell swelling, membrane rupture, and inflammation. Apoptosis can be
both physiologic and pathologic .
Question 5:
Which type of necrosis is most commonly seen in myocardial infarction?
A) Liquefactive necrosis
B) Caseous necrosis
C) Coagulative necrosis
D) Fat necrosis
Correct Answer: C) Coagulative necrosis
Rationale: Coagulative necrosis is characteristic of ischemic injury in solid organs such as
the heart (myocardial infarction), kidney, and liver. In coagulative necrosis, tissue
architecture is preserved initially, and the tissue is firm. Brain typically undergoes
liquefactive necrosis. Caseous necrosis is associated with tuberculosis, and fat necrosis
occurs in pancreatitis .
Question 6:
Liquefactive necrosis is characteristic of which condition?
A) Myocardial infarction
B) Brain infarction (stroke)
C) Tuberculosis
D) Ischemic injury to the kidney
Correct Answer: B) Brain infarction (stroke)
Rationale: Liquefactive necrosis occurs in the brain due to enzymatic digestion of necrotic
tissue, forming a cystic space. The brain's high lipid content and lack of a strong
Sure pass
, 4
connective tissue framework contribute to this type of necrosis. It also occurs in bacterial
abscesses .
Question 7:
Caseous necrosis is characteristic of which condition?
A) Tuberculosis
B) Myocardial infarction
C) Pancreatitis
D) Gangrene
Correct Answer: A) Tuberculosis
Rationale: Caseous necrosis (cheese-like appearance) is characteristic of tuberculosis. It
represents a combination of coagulative and liquefactive necrosis with a granulomatous
inflammatory response. The necrotic tissue appears white and friable, resembling cottage
cheese .
Question 8:
Reversible cell injury is characterized by:
A) Nuclear fragmentation
B) Cellular swelling and fatty change
C) Lysosomal rupture
D) Plasma membrane disruption
Correct Answer: B) Cellular swelling and fatty change
Rationale: Reversible cell injury causes cellular swelling (due to impaired Na+/K+ pump)
and fatty change (due to lipid accumulation). Irreversible injury includes nuclear changes
(pyknosis, karyorrhexis, karyolysis) and membrane disruption. Reversible changes can be
corrected if the injurious stimulus is removed .
Sure pass
