1
NR507 Midterm Exam Advanced
Pathophysiology Review Actual Exam 2026/2027
Complete Exam-Style Questions with Detailed
Rationales | 100% Verified | Pass Guaranteed –
A+ Graded
Chamberlain University | 2024/2025 Academic Year
Part I: Cellular Biology, Genetics & Immunity (Questions 1-25)
Q1: A 67-year-old male smoker presents with a chronic cough
and weight loss. Biopsy of his lung mass reveals cells that have
undergone a change from normal ciliated columnar epithelium
to stratified squamous epithelium. Which cellular adaptation
best describes this finding?
A. Hyperplasia – an increase in the number of cells in the tissue
B. Hypertrophy – an increase in the size of individual cells
C. Metapasia [CORRECT] – the reversible replacement of one
mature cell type by another
D. Dysplasia – disordered cellular maturation with atypical
features
Correct Answer: C
,2
Rationale: Metaplasia is the transformation of one differentiated
cell type into another, typically as an adaptive response to
chronic irritation—in this case, cigarette smoke causing
respiratory epithelium to change to a more protective squamous
type. This is a key concept from NR507's cellular adaptation
module.
Q2: A newborn is diagnosed with trisomy 21 (Down syndrome).
Which statement correctly describes the genetic mechanism
underlying this condition?
A. It results from a single gene mutation on chromosome 21
B. It is caused by nondisjunction during meiosis, resulting in
three copies of chromosome 21 [CORRECT]
C. It follows an autosomal recessive inheritance pattern
D. It is due to a deletion of genetic material from chromosome
21
Correct Answer: B
Rationale: Down syndrome is most commonly caused by
meiotic nondisjunction, where chromosome 21 fails to separate
properly, leading to an extra copy (trisomy) in all cells. This
chromosomal abnormality is foundational to understanding
genetic disorders in advanced pathophysiology.
,3
Q3: During a myocardial infarction, cardiac myocytes in the
ischemic zone begin to swell, lose membrane integrity, and
release intracellular enzymes into the circulation. Which form of
cell death is occurring?
A. Apoptosis – programmed, controlled cell death with intact
membranes
B. Autophagy – self-digestion of cellular components for
recycling
C. Necrosis – unregulated, inflammatory cell death with
membrane rupture [CORRECT]
D. Pyroptosis – inflammasome-mediated programmed necrosis
Correct Answer: C
Rationale: The description of cell swelling, membrane
disruption, and enzyme leakage into extracellular space is
classic for necrosis—the unprogrammed, accidental cell death
that occurs with acute ischemic injury and triggers an
inflammatory response.
Q4: A 34-year-old female presents with fatigue, joint pain, and a
butterfly-shaped rash on her face. Laboratory testing reveals
, 4
antinuclear antibodies (ANA) and anti-double-stranded DNA
antibodies. Which hypersensitivity reaction is primarily
involved in her condition?
A. Type I – IgE-mediated immediate hypersensitivity
B. Type II – antibody-mediated cytotoxic hypersensitivity
C. Type III – immune complex-mediated hypersensitivity
[CORRECT]
D. Type IV – T-cell-mediated delayed-type hypersensitivity
Correct Answer: C
Rationale: Systemic lupus erythematosus (SLE) is the classic
example of Type III hypersensitivity, where antigen-antibody
complexes deposit in tissues (skin, kidneys, joints) and activate
complement, causing inflammation and tissue damage.
Q5: A patient with a history of heavy alcohol use develops an
enlarged liver. Biopsy shows individual hepatocytes have
increased in size due to increased synthesis of structural proteins
and organelles. What type of cellular adaptation is this?
A. Atrophy – decrease in cell size
B. Hyperplasia – increase in cell number
NR507 Midterm Exam Advanced
Pathophysiology Review Actual Exam 2026/2027
Complete Exam-Style Questions with Detailed
Rationales | 100% Verified | Pass Guaranteed –
A+ Graded
Chamberlain University | 2024/2025 Academic Year
Part I: Cellular Biology, Genetics & Immunity (Questions 1-25)
Q1: A 67-year-old male smoker presents with a chronic cough
and weight loss. Biopsy of his lung mass reveals cells that have
undergone a change from normal ciliated columnar epithelium
to stratified squamous epithelium. Which cellular adaptation
best describes this finding?
A. Hyperplasia – an increase in the number of cells in the tissue
B. Hypertrophy – an increase in the size of individual cells
C. Metapasia [CORRECT] – the reversible replacement of one
mature cell type by another
D. Dysplasia – disordered cellular maturation with atypical
features
Correct Answer: C
,2
Rationale: Metaplasia is the transformation of one differentiated
cell type into another, typically as an adaptive response to
chronic irritation—in this case, cigarette smoke causing
respiratory epithelium to change to a more protective squamous
type. This is a key concept from NR507's cellular adaptation
module.
Q2: A newborn is diagnosed with trisomy 21 (Down syndrome).
Which statement correctly describes the genetic mechanism
underlying this condition?
A. It results from a single gene mutation on chromosome 21
B. It is caused by nondisjunction during meiosis, resulting in
three copies of chromosome 21 [CORRECT]
C. It follows an autosomal recessive inheritance pattern
D. It is due to a deletion of genetic material from chromosome
21
Correct Answer: B
Rationale: Down syndrome is most commonly caused by
meiotic nondisjunction, where chromosome 21 fails to separate
properly, leading to an extra copy (trisomy) in all cells. This
chromosomal abnormality is foundational to understanding
genetic disorders in advanced pathophysiology.
,3
Q3: During a myocardial infarction, cardiac myocytes in the
ischemic zone begin to swell, lose membrane integrity, and
release intracellular enzymes into the circulation. Which form of
cell death is occurring?
A. Apoptosis – programmed, controlled cell death with intact
membranes
B. Autophagy – self-digestion of cellular components for
recycling
C. Necrosis – unregulated, inflammatory cell death with
membrane rupture [CORRECT]
D. Pyroptosis – inflammasome-mediated programmed necrosis
Correct Answer: C
Rationale: The description of cell swelling, membrane
disruption, and enzyme leakage into extracellular space is
classic for necrosis—the unprogrammed, accidental cell death
that occurs with acute ischemic injury and triggers an
inflammatory response.
Q4: A 34-year-old female presents with fatigue, joint pain, and a
butterfly-shaped rash on her face. Laboratory testing reveals
, 4
antinuclear antibodies (ANA) and anti-double-stranded DNA
antibodies. Which hypersensitivity reaction is primarily
involved in her condition?
A. Type I – IgE-mediated immediate hypersensitivity
B. Type II – antibody-mediated cytotoxic hypersensitivity
C. Type III – immune complex-mediated hypersensitivity
[CORRECT]
D. Type IV – T-cell-mediated delayed-type hypersensitivity
Correct Answer: C
Rationale: Systemic lupus erythematosus (SLE) is the classic
example of Type III hypersensitivity, where antigen-antibody
complexes deposit in tissues (skin, kidneys, joints) and activate
complement, causing inflammation and tissue damage.
Q5: A patient with a history of heavy alcohol use develops an
enlarged liver. Biopsy shows individual hepatocytes have
increased in size due to increased synthesis of structural proteins
and organelles. What type of cellular adaptation is this?
A. Atrophy – decrease in cell size
B. Hyperplasia – increase in cell number
