CHAMBERLAIN-UNIVERSITY-NR507: ADVANCED PATHOPHYSIOLOGY | REAL
EXAM 2026/2027 | QUESTIONS AND 100% CORRECT ANSWERS NEWEST
VERSION GRADED A+
Chamberlain-NR507 (Advanced Pathophysiology)
1. A patient's biopsy reveals irreversible cell injury. Which of the following
findings would best confirm this diagnosis?
A. Cellular swelling
B. Nuclear pyknosis, karyorrhexis, and karyolysis
C. Ribosomal detachment
D. Increased intracellular sodium
ANSWER : B
Rationale: Nuclear changes — pyknosis (condensation), karyorrhexis
(fragmentation), and karyolysis (dissolution) — are hallmarks of irreversible cell
injury and necrosis. The other findings are associated with reversible injury.
2. Which type of necrosis is most commonly associated with myocardial
infarction?
A. Liquefactive necrosis
B. Caseous necrosis
C. Coagulative necrosis
D. Fat necrosis
ANSWER : C
Rationale: Coagulative necrosis is the hallmark of myocardial infarction. The
structural outline of dead cells is preserved because protein denaturation prevents
enzymatic digestion, which is characteristic of ischemic injury to solid organs.
3. A 45-year-old patient is found to have increased cell size with increased
functional demand. This adaptation is best described as:
A. Hyperplasia
B. Hypertrophy
, C. Metaplasia
D. Dysplasia
ANSWER : B
Rationale: Hypertrophy refers to an increase in cell size in response to increased
functional demand, such as cardiac muscle enlargement in response to
hypertension. Hyperplasia involves an increase in cell number.
4. Which cellular adaptation involves replacement of one mature cell type with
another mature cell type?
A. Dysplasia
B. Anaplasia
C. Metaplasia
D. Hyperplasia
ANSWER : C
Rationale: Metaplasia is a reversible change in which one differentiated cell type is
replaced by another. A classic example is the replacement of columnar epithelium
by squamous epithelium in smokers' bronchi.
5. Free radical injury is a key mechanism in cell damage. Which enzyme is
primarily responsible for neutralizing superoxide radicals?
A. Catalase
B. Glutathione peroxidase
C. Superoxide dismutase
D. Myeloperoxidase
ANSWER : C
Rationale: Superoxide dismutase (SOD) catalyzes the conversion of superoxide
radicals to hydrogen peroxide and molecular oxygen. Catalase and glutathione
peroxidase then neutralize hydrogen peroxide.
6. Which of the following best describes apoptosis?
A. Passive cell death from external injury
B. Programmed cell death without inflammation
C. Necrotic cell death with an inflammatory response
D. Cell death due to lysosomal enzyme release
ANSWER : B
,Rationale: Apoptosis is a programmed, energy-dependent process of cell death that
does not trigger an inflammatory response. It involves activation of caspases and
chromatin condensation. Necrosis, by contrast, causes inflammation.
7. A patient with chronic alcohol use has hepatocyte accumulation of triglycerides.
This intracellular change is best classified as:
A. Hydropic change
B. Fatty change (steatosis)
C. Glycogen accumulation
D. Amyloid deposition
ANSWER : B
Rationale: Fatty change (steatosis) describes abnormal accumulation of
triglycerides within parenchymal cells, most commonly in the liver. It occurs when
lipid uptake exceeds the cell's ability to metabolize or export fat.
8. Which of the following is the EARLIEST ultrastructural change seen with
reversible cell injury?
A. Lysosome membrane rupture
B. Nuclear chromatin clumping
C. Mitochondrial swelling
D. Plasma membrane disruption
ANSWER : C
Rationale: Mitochondrial swelling is the earliest ultrastructural change in reversible
cell injury. It reflects impaired oxidative phosphorylation and ATP depletion,
which leads to failure of the sodium-potassium ATPase pump.
9. Liquefactive necrosis is most characteristically associated with:
A. Myocardial infarction
B. Tuberculosis
C. Brain infarction
D. Pancreatic enzyme release
ANSWER : C
Rationale: Liquefactive necrosis is typical of brain infarctions because the CNS is
rich in lipids and has abundant proteolytic enzymes. Enzymatic digestion
transforms the tissue into liquid debris.
10. Caseous necrosis, characterized by a cheese-like appearance, is most
commonly associated with which pathogen?
, A. Staphylococcus aureus
B. Mycobacterium tuberculosis
C. Candida albicans
D. Streptococcus pneumoniae
ANSWER : B
Rationale: Caseous necrosis is classically associated with Mycobacterium
tuberculosis infections. The necrotic center appears white and crumbly (cheese-
like) and is surrounded by epithelioid macrophages forming a granuloma.
11. Which type of white blood cell is the FIRST to arrive at the site of acute
inflammation?
A. Macrophage
B. Lymphocyte
C. Neutrophil
D. Eosinophil
ANSWER : C
Rationale: Neutrophils are the first responders in acute inflammation, typically
arriving within 6 to 24 hours. They are recruited by chemokines such as IL-8 and
perform phagocytosis of pathogens.
12. A nurse notes rubor, calor, tumor, dolor, and functio laesa in a patient's wound.
These are collectively known as:
A. Signs of healing
B. Cardinal signs of inflammation
C. Indicators of necrosis
D. Signs of infection only
ANSWER : B
Rationale: These five terms — redness (rubor), heat (calor), swelling (tumor), pain
(dolor), and loss of function (functio laesa) — represent the five cardinal signs of
inflammation first described by Celsus and later expanded by Virchow.
13. Which mediator is the PRIMARY cause of fever during infection?
A. Bradykinin
B. Histamine
C. Interleukin-1 (IL-1)
D. Serotonin
ANSWER : C
EXAM 2026/2027 | QUESTIONS AND 100% CORRECT ANSWERS NEWEST
VERSION GRADED A+
Chamberlain-NR507 (Advanced Pathophysiology)
1. A patient's biopsy reveals irreversible cell injury. Which of the following
findings would best confirm this diagnosis?
A. Cellular swelling
B. Nuclear pyknosis, karyorrhexis, and karyolysis
C. Ribosomal detachment
D. Increased intracellular sodium
ANSWER : B
Rationale: Nuclear changes — pyknosis (condensation), karyorrhexis
(fragmentation), and karyolysis (dissolution) — are hallmarks of irreversible cell
injury and necrosis. The other findings are associated with reversible injury.
2. Which type of necrosis is most commonly associated with myocardial
infarction?
A. Liquefactive necrosis
B. Caseous necrosis
C. Coagulative necrosis
D. Fat necrosis
ANSWER : C
Rationale: Coagulative necrosis is the hallmark of myocardial infarction. The
structural outline of dead cells is preserved because protein denaturation prevents
enzymatic digestion, which is characteristic of ischemic injury to solid organs.
3. A 45-year-old patient is found to have increased cell size with increased
functional demand. This adaptation is best described as:
A. Hyperplasia
B. Hypertrophy
, C. Metaplasia
D. Dysplasia
ANSWER : B
Rationale: Hypertrophy refers to an increase in cell size in response to increased
functional demand, such as cardiac muscle enlargement in response to
hypertension. Hyperplasia involves an increase in cell number.
4. Which cellular adaptation involves replacement of one mature cell type with
another mature cell type?
A. Dysplasia
B. Anaplasia
C. Metaplasia
D. Hyperplasia
ANSWER : C
Rationale: Metaplasia is a reversible change in which one differentiated cell type is
replaced by another. A classic example is the replacement of columnar epithelium
by squamous epithelium in smokers' bronchi.
5. Free radical injury is a key mechanism in cell damage. Which enzyme is
primarily responsible for neutralizing superoxide radicals?
A. Catalase
B. Glutathione peroxidase
C. Superoxide dismutase
D. Myeloperoxidase
ANSWER : C
Rationale: Superoxide dismutase (SOD) catalyzes the conversion of superoxide
radicals to hydrogen peroxide and molecular oxygen. Catalase and glutathione
peroxidase then neutralize hydrogen peroxide.
6. Which of the following best describes apoptosis?
A. Passive cell death from external injury
B. Programmed cell death without inflammation
C. Necrotic cell death with an inflammatory response
D. Cell death due to lysosomal enzyme release
ANSWER : B
,Rationale: Apoptosis is a programmed, energy-dependent process of cell death that
does not trigger an inflammatory response. It involves activation of caspases and
chromatin condensation. Necrosis, by contrast, causes inflammation.
7. A patient with chronic alcohol use has hepatocyte accumulation of triglycerides.
This intracellular change is best classified as:
A. Hydropic change
B. Fatty change (steatosis)
C. Glycogen accumulation
D. Amyloid deposition
ANSWER : B
Rationale: Fatty change (steatosis) describes abnormal accumulation of
triglycerides within parenchymal cells, most commonly in the liver. It occurs when
lipid uptake exceeds the cell's ability to metabolize or export fat.
8. Which of the following is the EARLIEST ultrastructural change seen with
reversible cell injury?
A. Lysosome membrane rupture
B. Nuclear chromatin clumping
C. Mitochondrial swelling
D. Plasma membrane disruption
ANSWER : C
Rationale: Mitochondrial swelling is the earliest ultrastructural change in reversible
cell injury. It reflects impaired oxidative phosphorylation and ATP depletion,
which leads to failure of the sodium-potassium ATPase pump.
9. Liquefactive necrosis is most characteristically associated with:
A. Myocardial infarction
B. Tuberculosis
C. Brain infarction
D. Pancreatic enzyme release
ANSWER : C
Rationale: Liquefactive necrosis is typical of brain infarctions because the CNS is
rich in lipids and has abundant proteolytic enzymes. Enzymatic digestion
transforms the tissue into liquid debris.
10. Caseous necrosis, characterized by a cheese-like appearance, is most
commonly associated with which pathogen?
, A. Staphylococcus aureus
B. Mycobacterium tuberculosis
C. Candida albicans
D. Streptococcus pneumoniae
ANSWER : B
Rationale: Caseous necrosis is classically associated with Mycobacterium
tuberculosis infections. The necrotic center appears white and crumbly (cheese-
like) and is surrounded by epithelioid macrophages forming a granuloma.
11. Which type of white blood cell is the FIRST to arrive at the site of acute
inflammation?
A. Macrophage
B. Lymphocyte
C. Neutrophil
D. Eosinophil
ANSWER : C
Rationale: Neutrophils are the first responders in acute inflammation, typically
arriving within 6 to 24 hours. They are recruited by chemokines such as IL-8 and
perform phagocytosis of pathogens.
12. A nurse notes rubor, calor, tumor, dolor, and functio laesa in a patient's wound.
These are collectively known as:
A. Signs of healing
B. Cardinal signs of inflammation
C. Indicators of necrosis
D. Signs of infection only
ANSWER : B
Rationale: These five terms — redness (rubor), heat (calor), swelling (tumor), pain
(dolor), and loss of function (functio laesa) — represent the five cardinal signs of
inflammation first described by Celsus and later expanded by Virchow.
13. Which mediator is the PRIMARY cause of fever during infection?
A. Bradykinin
B. Histamine
C. Interleukin-1 (IL-1)
D. Serotonin
ANSWER : C
