Final Exam: NR507/NR 507 – Advanced
Pathophysiology
Chamberlain University | 2025/2026 Exam-
Preparation Guide
100 Original Graduate-Level Questions,
Correct Answers & Rationales
I. Cellular Injury, Adaptation, Inflammation & Immunity
1. Which cellular adaptation occurs when cardiac myocytes enlarge in response to chronic
pressure overload?
A) Hypertrophy
B) Hyperplasia
C) Metaplasia
D) Dysplasia
Correct Answer: Hypertrophy
Rationale: Hypertrophy is an increase in individual cell size rather than cell number. Cardiac
myocytes have limited ability to divide, so chronic pressure overload from conditions such as
hypertension produces myocardial hypertrophy. Hyperplasia increases cell number,
metaplasia changes differentiated cell type, and dysplasia involves abnormal cellular growth
and organization.
2. A chronic irritant causes replacement of one mature epithelial cell type with another
better able to tolerate the environment. Which process is occurring?
A) Atrophy
B) Metaplasia
C) Hypertrophy
D) Necrosis
Correct Answer: Metaplasia
,Rationale: Metaplasia is a reversible adaptive change in which one differentiated cell type is
replaced by another mature cell type. It commonly occurs when tissues experience persistent
irritation. Although initially protective, prolonged metaplasia may increase the risk of
dysplasia and malignant transformation if the underlying stimulus continues.
3. Which mechanism most directly characterizes apoptosis?
A) Uncontrolled cellular swelling
B) Massive inflammatory destruction
C) Programmed cellular death
D) Immediate tissue liquefaction
Correct Answer: Programmed cellular death
Rationale: Apoptosis is a regulated form of programmed cell death that removes damaged,
unnecessary, or aged cells with relatively little surrounding inflammation. Cellular contents
are packaged into apoptotic bodies for removal. Necrosis, by contrast, generally follows
severe cellular injury and produces membrane disruption with an inflammatory response.
4. A tissue undergoes ischemia followed by restoration of blood flow. Why can additional
cellular injury occur after reperfusion?
A) Increased insulin secretion
B) Reduced oxygen delivery
C) Suppression of inflammatory mediators
D) Generation of reactive oxygen species
Correct Answer: Generation of reactive oxygen species
Rationale: Reperfusion restores oxygen but can also generate reactive oxygen species that
damage cellular membranes, proteins, and DNA. Neutrophil activation and inflammatory
pathways may further amplify injury. This phenomenon is called ischemia-reperfusion injury
and is clinically important in organs such as the heart, brain, and kidneys.
5. During acute inflammation, which mediator is strongly associated with early
vasodilation and increased vascular permeability?
A) Histamine
B) Insulin
C) Erythropoietin
D) Albumin
,Correct Answer: Histamine
Rationale: Histamine is rapidly released from mast cells and contributes to vasodilation and
increased vascular permeability during acute inflammation. These effects promote
movement of fluid and inflammatory components into injured tissue. Insulin regulates
glucose, erythropoietin stimulates erythrocyte production, and albumin primarily maintains
plasma oncotic pressure.
6. What is the principal purpose of the inflammatory response?
A) Permanently destroy surrounding tissue
B) Eliminate the injurious stimulus and initiate repair
C) Prevent leukocyte migration
D) Suppress all vascular changes
Correct Answer: Eliminate the injurious stimulus and initiate repair
Rationale: Inflammation is a protective response intended to remove harmful stimuli,
eliminate damaged tissue or pathogens, and initiate healing. Excessive or prolonged
inflammation can itself cause tissue injury. Therefore, inflammation is beneficial when
appropriately controlled but potentially harmful when persistent or dysregulated.
7. Which immune response is characteristic of a type I hypersensitivity reaction?
A) Delayed T-cell-mediated response
B) Immune-complex deposition
C) IgE-mediated mast-cell activation
D) Antibody destruction of basement membranes
Correct Answer: IgE-mediated mast-cell activation
Rationale: Type I hypersensitivity is an immediate allergic response involving IgE antibodies
and mast-cell degranulation. Histamine and other mediators produce manifestations such as
urticaria, bronchoconstriction, and anaphylaxis. Type IV reactions are delayed and T-cell
mediated, whereas types II and III involve antibody-mediated mechanisms.
8. A patient develops widespread tissue injury because antibodies target normal cellular
structures. Which pathophysiologic process best explains this condition?
A) Autoimmunity
B) Immunologic tolerance
C) Passive immunity
, D) Normal inflammatory resolution
Correct Answer: Autoimmunity
Rationale: Autoimmunity occurs when the immune system loses tolerance to self-antigens
and mounts an immune response against normal tissues. Depending on the disease,
antibodies, immune complexes, or autoreactive T cells may contribute to injury. Systemic
lupus erythematosus and rheumatoid arthritis are examples of autoimmune disorders.
II. Genetics, Neoplasia & Fluid/Electrolyte Disorders
9. Which inheritance pattern is most consistent with a disorder that commonly affects
every generation and can occur in males and females?
A) X-linked recessive
B) Autosomal recessive
C) Mitochondrial
D) Autosomal dominant
Correct Answer: Autosomal dominant
Rationale: Autosomal dominant disorders typically appear in successive generations because
one pathogenic allele can be sufficient to produce the phenotype. Males and females are
affected. Autosomal recessive disorders may skip generations, while X-linked and
mitochondrial disorders follow different transmission patterns.
10. A tumor suppressor gene normally prevents inappropriate cellular proliferation. Loss
of its function most directly promotes which process?
A) Uncontrolled cellular proliferation
B) Increased programmed cell death
C) Reduced mutation accumulation
D) Normal differentiation
Correct Answer: Uncontrolled cellular proliferation
Rationale: Tumor suppressor proteins normally restrain cell-cycle progression, promote DNA
repair, or initiate apoptosis when damage is severe. Loss of tumor-suppressor activity
removes important growth controls. This permits genetically abnormal cells to survive and
proliferate, contributing to carcinogenesis.
11. Which characteristic best distinguishes malignant tumors from benign tumors?
Pathophysiology
Chamberlain University | 2025/2026 Exam-
Preparation Guide
100 Original Graduate-Level Questions,
Correct Answers & Rationales
I. Cellular Injury, Adaptation, Inflammation & Immunity
1. Which cellular adaptation occurs when cardiac myocytes enlarge in response to chronic
pressure overload?
A) Hypertrophy
B) Hyperplasia
C) Metaplasia
D) Dysplasia
Correct Answer: Hypertrophy
Rationale: Hypertrophy is an increase in individual cell size rather than cell number. Cardiac
myocytes have limited ability to divide, so chronic pressure overload from conditions such as
hypertension produces myocardial hypertrophy. Hyperplasia increases cell number,
metaplasia changes differentiated cell type, and dysplasia involves abnormal cellular growth
and organization.
2. A chronic irritant causes replacement of one mature epithelial cell type with another
better able to tolerate the environment. Which process is occurring?
A) Atrophy
B) Metaplasia
C) Hypertrophy
D) Necrosis
Correct Answer: Metaplasia
,Rationale: Metaplasia is a reversible adaptive change in which one differentiated cell type is
replaced by another mature cell type. It commonly occurs when tissues experience persistent
irritation. Although initially protective, prolonged metaplasia may increase the risk of
dysplasia and malignant transformation if the underlying stimulus continues.
3. Which mechanism most directly characterizes apoptosis?
A) Uncontrolled cellular swelling
B) Massive inflammatory destruction
C) Programmed cellular death
D) Immediate tissue liquefaction
Correct Answer: Programmed cellular death
Rationale: Apoptosis is a regulated form of programmed cell death that removes damaged,
unnecessary, or aged cells with relatively little surrounding inflammation. Cellular contents
are packaged into apoptotic bodies for removal. Necrosis, by contrast, generally follows
severe cellular injury and produces membrane disruption with an inflammatory response.
4. A tissue undergoes ischemia followed by restoration of blood flow. Why can additional
cellular injury occur after reperfusion?
A) Increased insulin secretion
B) Reduced oxygen delivery
C) Suppression of inflammatory mediators
D) Generation of reactive oxygen species
Correct Answer: Generation of reactive oxygen species
Rationale: Reperfusion restores oxygen but can also generate reactive oxygen species that
damage cellular membranes, proteins, and DNA. Neutrophil activation and inflammatory
pathways may further amplify injury. This phenomenon is called ischemia-reperfusion injury
and is clinically important in organs such as the heart, brain, and kidneys.
5. During acute inflammation, which mediator is strongly associated with early
vasodilation and increased vascular permeability?
A) Histamine
B) Insulin
C) Erythropoietin
D) Albumin
,Correct Answer: Histamine
Rationale: Histamine is rapidly released from mast cells and contributes to vasodilation and
increased vascular permeability during acute inflammation. These effects promote
movement of fluid and inflammatory components into injured tissue. Insulin regulates
glucose, erythropoietin stimulates erythrocyte production, and albumin primarily maintains
plasma oncotic pressure.
6. What is the principal purpose of the inflammatory response?
A) Permanently destroy surrounding tissue
B) Eliminate the injurious stimulus and initiate repair
C) Prevent leukocyte migration
D) Suppress all vascular changes
Correct Answer: Eliminate the injurious stimulus and initiate repair
Rationale: Inflammation is a protective response intended to remove harmful stimuli,
eliminate damaged tissue or pathogens, and initiate healing. Excessive or prolonged
inflammation can itself cause tissue injury. Therefore, inflammation is beneficial when
appropriately controlled but potentially harmful when persistent or dysregulated.
7. Which immune response is characteristic of a type I hypersensitivity reaction?
A) Delayed T-cell-mediated response
B) Immune-complex deposition
C) IgE-mediated mast-cell activation
D) Antibody destruction of basement membranes
Correct Answer: IgE-mediated mast-cell activation
Rationale: Type I hypersensitivity is an immediate allergic response involving IgE antibodies
and mast-cell degranulation. Histamine and other mediators produce manifestations such as
urticaria, bronchoconstriction, and anaphylaxis. Type IV reactions are delayed and T-cell
mediated, whereas types II and III involve antibody-mediated mechanisms.
8. A patient develops widespread tissue injury because antibodies target normal cellular
structures. Which pathophysiologic process best explains this condition?
A) Autoimmunity
B) Immunologic tolerance
C) Passive immunity
, D) Normal inflammatory resolution
Correct Answer: Autoimmunity
Rationale: Autoimmunity occurs when the immune system loses tolerance to self-antigens
and mounts an immune response against normal tissues. Depending on the disease,
antibodies, immune complexes, or autoreactive T cells may contribute to injury. Systemic
lupus erythematosus and rheumatoid arthritis are examples of autoimmune disorders.
II. Genetics, Neoplasia & Fluid/Electrolyte Disorders
9. Which inheritance pattern is most consistent with a disorder that commonly affects
every generation and can occur in males and females?
A) X-linked recessive
B) Autosomal recessive
C) Mitochondrial
D) Autosomal dominant
Correct Answer: Autosomal dominant
Rationale: Autosomal dominant disorders typically appear in successive generations because
one pathogenic allele can be sufficient to produce the phenotype. Males and females are
affected. Autosomal recessive disorders may skip generations, while X-linked and
mitochondrial disorders follow different transmission patterns.
10. A tumor suppressor gene normally prevents inappropriate cellular proliferation. Loss
of its function most directly promotes which process?
A) Uncontrolled cellular proliferation
B) Increased programmed cell death
C) Reduced mutation accumulation
D) Normal differentiation
Correct Answer: Uncontrolled cellular proliferation
Rationale: Tumor suppressor proteins normally restrain cell-cycle progression, promote DNA
repair, or initiate apoptosis when damage is severe. Loss of tumor-suppressor activity
removes important growth controls. This permits genetically abnormal cells to survive and
proliferate, contributing to carcinogenesis.
11. Which characteristic best distinguishes malignant tumors from benign tumors?
