NUR 3129 PATHOPHYSIOLOGY
POST-TEST QUESTIONS AND
CORRECT ANSWERS (VERIFIED
ANSWERS) PLUS RATIONALES 2026
Q&A | INSTANT DOWNLOAD PDF.
Core Domains
• Cellular Adaptation, Injury, and Death
• Genetics and Genetic Disorders
• Inflammation, Immunity, and Wound Healing
• Fluid, Electrolyte, and Acid-Base Balance
• Cardiovascular Pathophysiology
• Respiratory Pathophysiology
• Renal and Urinary Pathophysiology
• Gastrointestinal and Hepatobiliary Pathophysiology
• Endocrine Pathophysiology
• Neurological and Musculoskeletal Pathophysiology
Introduction
This examination evaluates comprehensive understanding of
pathophysiological concepts essential for nursing practice. It assesses
knowledge of disease mechanisms, cellular alterations, and systemic
responses across the lifespan. The test employs multiple-choice and
scenario-based questions that require critical thinking and clinical
application of pathophysiological principles. Emphasis is placed on linking
underlying mechanisms to clinical manifestations, diagnostic findings, and
,treatment rationale. This assessment serves as a measure of readiness for
professional nursing practice and evidence-based clinical decision-
making.
Section One: Questions 1–100
1. A nurse is reviewing the structure of the cell membrane. Which
component is primarily responsible for cell-to-cell recognition?
A. Phospholipid bilayer
B. Glycocalyx
C. Cholesterol
D. Integral proteins
B. Glycocalyx
RATIONALE: The glycocalyx is the carbohydrate-rich coating on the
cell surface that functions in cell-to-cell recognition, adhesion, and
protection. The phospholipid bilayer forms the basic structure,
cholesterol affects fluidity, and integral proteins serve as channels,
pumps, and receptors.
2. Which type of cellular adaptation is characterized by a reversible
change from one mature cell type to another?
A. Hyperplasia
B. Metaplasia
C. Dysplasia
D. Anaplasia
B. Metaplasia
RATIONALE: Metaplasia is a reversible replacement of one mature
cell type with another, often in response to chronic irritation.
Hyperplasia is an increase in cell number, dysplasia is disordered
growth, and anaplasia is a lack of differentiation seen in malignancy.
3. A patient with chronic hypertension develops left ventricular
hypertrophy. This is an example of:
,A. Physiologic hypertrophy
B. Pathologic hypertrophy
C. Hyperplasia
D. Atrophy
B. Pathologic hypertrophy
RATIONALE: Pathologic hypertrophy occurs in response to
increased workload (e.g., hypertension) and can lead to decreased
function and heart failure. Physiologic hypertrophy occurs with exercise
and is reversible.
4. Which of the following is a hallmark of apoptosis?
A. Cell swelling and lysis
B. Inflammatory response
C. Programmed cell death without inflammation
D. Random DNA fragmentation
C. Programmed cell death without inflammation
RATIONALE: Apoptosis is a regulated, energy-dependent process of
programmed cell death that does not incite inflammation. Necrosis
causes cell swelling, lysis, and inflammation.
5. A patient has a mutation in the CFTR gene. Which
pathophysiological process is most directly affected?
A. Chloride transport across epithelial membranes
B. Sodium reabsorption in the proximal tubule
C. Potassium excretion in the distal tubule
D. Glucose reabsorption in the intestine
A. Chloride transport across epithelial membranes
RATIONALE: The CFTR gene encodes a chloride channel. Mutations
lead to defective chloride transport, causing thick, viscous secretions in
lungs, pancreas, and other organs, characteristic of cystic fibrosis.
, 6. In autosomal recessive inheritance, what is the probability that a
child will be affected if both parents are carriers?
A. 0%
B. 25%
C. 50%
D. 75%
B. 25%
RATIONALE: If both parents are carriers (heterozygous), each
pregnancy has a 25% chance of an affected child (homozygous
recessive), a 50% chance of a carrier child, and a 25% chance of a
homozygous normal child.
7. Which immunoglobulin is primarily responsible for allergic
reactions (Type I hypersensitivity)?
A. IgA
B. IgG
C. IgM
D. IgE
D. IgE
RATIONALE: IgE binds to mast cells and basophils. Upon allergen
exposure, it triggers degranulation and release of histamine and other
mediators, causing Type I hypersensitivity reactions (e.g., anaphylaxis,
allergies).
8. A patient with systemic lupus erythematosus (SLE) is most likely to
have which type of hypersensitivity reaction?
A. Type I
B. Type II
C. Type III
D. Type IV
C. Type III
POST-TEST QUESTIONS AND
CORRECT ANSWERS (VERIFIED
ANSWERS) PLUS RATIONALES 2026
Q&A | INSTANT DOWNLOAD PDF.
Core Domains
• Cellular Adaptation, Injury, and Death
• Genetics and Genetic Disorders
• Inflammation, Immunity, and Wound Healing
• Fluid, Electrolyte, and Acid-Base Balance
• Cardiovascular Pathophysiology
• Respiratory Pathophysiology
• Renal and Urinary Pathophysiology
• Gastrointestinal and Hepatobiliary Pathophysiology
• Endocrine Pathophysiology
• Neurological and Musculoskeletal Pathophysiology
Introduction
This examination evaluates comprehensive understanding of
pathophysiological concepts essential for nursing practice. It assesses
knowledge of disease mechanisms, cellular alterations, and systemic
responses across the lifespan. The test employs multiple-choice and
scenario-based questions that require critical thinking and clinical
application of pathophysiological principles. Emphasis is placed on linking
underlying mechanisms to clinical manifestations, diagnostic findings, and
,treatment rationale. This assessment serves as a measure of readiness for
professional nursing practice and evidence-based clinical decision-
making.
Section One: Questions 1–100
1. A nurse is reviewing the structure of the cell membrane. Which
component is primarily responsible for cell-to-cell recognition?
A. Phospholipid bilayer
B. Glycocalyx
C. Cholesterol
D. Integral proteins
B. Glycocalyx
RATIONALE: The glycocalyx is the carbohydrate-rich coating on the
cell surface that functions in cell-to-cell recognition, adhesion, and
protection. The phospholipid bilayer forms the basic structure,
cholesterol affects fluidity, and integral proteins serve as channels,
pumps, and receptors.
2. Which type of cellular adaptation is characterized by a reversible
change from one mature cell type to another?
A. Hyperplasia
B. Metaplasia
C. Dysplasia
D. Anaplasia
B. Metaplasia
RATIONALE: Metaplasia is a reversible replacement of one mature
cell type with another, often in response to chronic irritation.
Hyperplasia is an increase in cell number, dysplasia is disordered
growth, and anaplasia is a lack of differentiation seen in malignancy.
3. A patient with chronic hypertension develops left ventricular
hypertrophy. This is an example of:
,A. Physiologic hypertrophy
B. Pathologic hypertrophy
C. Hyperplasia
D. Atrophy
B. Pathologic hypertrophy
RATIONALE: Pathologic hypertrophy occurs in response to
increased workload (e.g., hypertension) and can lead to decreased
function and heart failure. Physiologic hypertrophy occurs with exercise
and is reversible.
4. Which of the following is a hallmark of apoptosis?
A. Cell swelling and lysis
B. Inflammatory response
C. Programmed cell death without inflammation
D. Random DNA fragmentation
C. Programmed cell death without inflammation
RATIONALE: Apoptosis is a regulated, energy-dependent process of
programmed cell death that does not incite inflammation. Necrosis
causes cell swelling, lysis, and inflammation.
5. A patient has a mutation in the CFTR gene. Which
pathophysiological process is most directly affected?
A. Chloride transport across epithelial membranes
B. Sodium reabsorption in the proximal tubule
C. Potassium excretion in the distal tubule
D. Glucose reabsorption in the intestine
A. Chloride transport across epithelial membranes
RATIONALE: The CFTR gene encodes a chloride channel. Mutations
lead to defective chloride transport, causing thick, viscous secretions in
lungs, pancreas, and other organs, characteristic of cystic fibrosis.
, 6. In autosomal recessive inheritance, what is the probability that a
child will be affected if both parents are carriers?
A. 0%
B. 25%
C. 50%
D. 75%
B. 25%
RATIONALE: If both parents are carriers (heterozygous), each
pregnancy has a 25% chance of an affected child (homozygous
recessive), a 50% chance of a carrier child, and a 25% chance of a
homozygous normal child.
7. Which immunoglobulin is primarily responsible for allergic
reactions (Type I hypersensitivity)?
A. IgA
B. IgG
C. IgM
D. IgE
D. IgE
RATIONALE: IgE binds to mast cells and basophils. Upon allergen
exposure, it triggers degranulation and release of histamine and other
mediators, causing Type I hypersensitivity reactions (e.g., anaphylaxis,
allergies).
8. A patient with systemic lupus erythematosus (SLE) is most likely to
have which type of hypersensitivity reaction?
A. Type I
B. Type II
C. Type III
D. Type IV
C. Type III
