Portage Learning | NURS 231 Pathophysiology
NURS 231 Pathophysiology
Comprehensive Final Examination
2026/2027 | Verified Questions
Portage Learning | NURS 231 Pathophysiology | University-Level Nursing Students
100 Verified Questions | 4 Core Domains | Academic Year 2026/2027
Prepared by
Portage Learning | NURS 231 Pathophysiology
Comprehensive Final Examination Actual Exam | Academic Year 2026/2027
NURS 231 Pathophysiology Comprehensive Final Examination 2026/2027 | Verified Questions
,INTRODUCTION
This document contains 100 original verified questions designed for the NURS 231 Pathophysiology
Comprehensive Final Examination. The questions are organized across four core domains: Cellular,
Genetic, and Integumentary Alterations (25 questions); Cardiovascular and Pulmonary Pathophysiology
(25 questions); Gastrointestinal, Hepatic, and Renal Pathophysiology (25 questions); and Neurological,
Endocrine, and Immune Pathophysiology (25 questions). Content is original and constructed to reinforce
the official Portage Learning NURS 231 course objectives for actual exam readiness and clinical
proficiency, aligned to the 2026/2027 academic year. Each question includes a correct answer and a
rationale grounded in foundational pathophysiology curriculum and disease-process mechanisms.
ACTUAL QUESTIONS
Domain 1: Cellular, Genetic, and Integumentary Alterations
Question 1. Which cellular adaptation is characterized by an increase in the number of
cells in a tissue or organ?
A. Hypertrophy
B. Atrophy
C. Metaplasia
D. Hyperplasia
Correct Answer: D
Rationale: Hyperplasia is an increase in cell number. Hypertrophy is increase in cell size; atrophy is
decrease in size or number; metaplasia is replacement by a different cell type.
Question 2. What is the primary mechanism of cell injury caused by free radicals?
A. Lipid peroxidation of membrane lipids and oxidative damage to proteins and DNA
B. Direct inhibition of ATP synthase only
C. Immediate rupture of the nucleus
D. Exclusive damage to mitochondria without membrane effects
Correct Answer: A
Rationale: Reactive oxygen species initiate lipid peroxidation, protein oxidation, and DNA damage,
leading to membrane dysfunction and cell injury.
Question 3. In apoptosis, which family of enzymes is primarily responsible for executing
the orderly disassembly of the cell?
A. Kinases
B. Caspases
C. Phosphatases
D. Helicases
Correct Answer: B
NURS 231 Pathophysiology Comprehensive Final Examination 2026/2027 | Verified Questions
,Rationale: Caspases are cysteine proteases that cleave key cellular proteins in a controlled cascade,
producing the characteristic morphologic features of apoptosis without inflammation.
Question 4. A patient has a genetic mutation that prevents production of functional
dystrophin. Which condition is most directly associated with this defect?
A. Cystic fibrosis
B. Sickle cell disease
C. Duchenne muscular dystrophy
D. Huntington disease
Correct Answer: C
Rationale: Dystrophin stabilizes the muscle cell membrane. Its absence leads to progressive muscle
degeneration characteristic of Duchenne muscular dystrophy, an X-linked disorder.
Question 5. Which term describes the reversible replacement of one differentiated cell type
by another in response to chronic irritation?
A. Dysplasia
B. Metaplasia
C. Neoplasia
D. Anaplasia
Correct Answer: B
Rationale: Metaplasia is a reversible adaptive change in which one adult cell type is replaced by
another better suited to the altered environment.
Question 6. What is the hallmark histologic feature of irreversible cell injury leading to
necrosis?
A. Cellular swelling only
B. Increased mitochondrial density without other changes
C. Reversible chromatin condensation only
D. Membrane rupture and nuclear changes (pyknosis, karyorrhexis, karyolysis)
Correct Answer: D
Rationale: Once membrane integrity is lost and nuclear dissolution occurs, the injury is irreversible and
progresses to necrosis.
Question 7. Which skin lesion is characterized by a flat, circumscribed area of color change
less than 1 cm in diameter?
A. Papule
B. Macule
C. Vesicle
NURS 231 Pathophysiology Comprehensive Final Examination 2026/2027 | Verified Questions
, D. Pustule
Correct Answer: B
Rationale: A macule is a flat, non-palpable change in skin color. Papules are elevated; vesicles contain
clear fluid; pustules contain purulent fluid.
Question 8. In the pathogenesis of pressure ulcers, which factor is the primary external
cause of tissue ischemia?
A. Sustained external pressure exceeding capillary closing pressure
B. Excessive moisture alone
C. Nutritional excess
D. Hyperthermia of the skin surface
Correct Answer: A
Rationale: Pressure that exceeds capillary perfusion pressure for a prolonged period causes ischemia
and eventual tissue necrosis.
Question 9. Which genetic principle explains why an autosomal dominant disorder can
appear in every generation of a pedigree?
A. Both alleles must be mutated for expression
B. The trait is carried only on the X chromosome
C. The mutation is always lethal in the homozygous state
D. Only one mutated allele is required for expression of the phenotype
Correct Answer: D
Rationale: Autosomal dominant inheritance requires only a single copy of the mutant allele for
phenotypic expression.
Question 10. What is the primary pathophysiologic event in first-degree (superficial)
burns?
A. Full-thickness destruction of dermis and epidermis
B. Damage limited to the epidermis with erythema and pain but no blistering
C. Involvement of subcutaneous fat and muscle
D. Complete loss of sensation in the burned area
Correct Answer: B
Rationale: First-degree burns affect only the epidermis, producing redness and pain without blisters.
Question 11. Which process describes programmed cell death that is energy-dependent and
does not provoke inflammation?
A. Apoptosis
B. Coagulative necrosis
NURS 231 Pathophysiology Comprehensive Final Examination 2026/2027 | Verified Questions
NURS 231 Pathophysiology
Comprehensive Final Examination
2026/2027 | Verified Questions
Portage Learning | NURS 231 Pathophysiology | University-Level Nursing Students
100 Verified Questions | 4 Core Domains | Academic Year 2026/2027
Prepared by
Portage Learning | NURS 231 Pathophysiology
Comprehensive Final Examination Actual Exam | Academic Year 2026/2027
NURS 231 Pathophysiology Comprehensive Final Examination 2026/2027 | Verified Questions
,INTRODUCTION
This document contains 100 original verified questions designed for the NURS 231 Pathophysiology
Comprehensive Final Examination. The questions are organized across four core domains: Cellular,
Genetic, and Integumentary Alterations (25 questions); Cardiovascular and Pulmonary Pathophysiology
(25 questions); Gastrointestinal, Hepatic, and Renal Pathophysiology (25 questions); and Neurological,
Endocrine, and Immune Pathophysiology (25 questions). Content is original and constructed to reinforce
the official Portage Learning NURS 231 course objectives for actual exam readiness and clinical
proficiency, aligned to the 2026/2027 academic year. Each question includes a correct answer and a
rationale grounded in foundational pathophysiology curriculum and disease-process mechanisms.
ACTUAL QUESTIONS
Domain 1: Cellular, Genetic, and Integumentary Alterations
Question 1. Which cellular adaptation is characterized by an increase in the number of
cells in a tissue or organ?
A. Hypertrophy
B. Atrophy
C. Metaplasia
D. Hyperplasia
Correct Answer: D
Rationale: Hyperplasia is an increase in cell number. Hypertrophy is increase in cell size; atrophy is
decrease in size or number; metaplasia is replacement by a different cell type.
Question 2. What is the primary mechanism of cell injury caused by free radicals?
A. Lipid peroxidation of membrane lipids and oxidative damage to proteins and DNA
B. Direct inhibition of ATP synthase only
C. Immediate rupture of the nucleus
D. Exclusive damage to mitochondria without membrane effects
Correct Answer: A
Rationale: Reactive oxygen species initiate lipid peroxidation, protein oxidation, and DNA damage,
leading to membrane dysfunction and cell injury.
Question 3. In apoptosis, which family of enzymes is primarily responsible for executing
the orderly disassembly of the cell?
A. Kinases
B. Caspases
C. Phosphatases
D. Helicases
Correct Answer: B
NURS 231 Pathophysiology Comprehensive Final Examination 2026/2027 | Verified Questions
,Rationale: Caspases are cysteine proteases that cleave key cellular proteins in a controlled cascade,
producing the characteristic morphologic features of apoptosis without inflammation.
Question 4. A patient has a genetic mutation that prevents production of functional
dystrophin. Which condition is most directly associated with this defect?
A. Cystic fibrosis
B. Sickle cell disease
C. Duchenne muscular dystrophy
D. Huntington disease
Correct Answer: C
Rationale: Dystrophin stabilizes the muscle cell membrane. Its absence leads to progressive muscle
degeneration characteristic of Duchenne muscular dystrophy, an X-linked disorder.
Question 5. Which term describes the reversible replacement of one differentiated cell type
by another in response to chronic irritation?
A. Dysplasia
B. Metaplasia
C. Neoplasia
D. Anaplasia
Correct Answer: B
Rationale: Metaplasia is a reversible adaptive change in which one adult cell type is replaced by
another better suited to the altered environment.
Question 6. What is the hallmark histologic feature of irreversible cell injury leading to
necrosis?
A. Cellular swelling only
B. Increased mitochondrial density without other changes
C. Reversible chromatin condensation only
D. Membrane rupture and nuclear changes (pyknosis, karyorrhexis, karyolysis)
Correct Answer: D
Rationale: Once membrane integrity is lost and nuclear dissolution occurs, the injury is irreversible and
progresses to necrosis.
Question 7. Which skin lesion is characterized by a flat, circumscribed area of color change
less than 1 cm in diameter?
A. Papule
B. Macule
C. Vesicle
NURS 231 Pathophysiology Comprehensive Final Examination 2026/2027 | Verified Questions
, D. Pustule
Correct Answer: B
Rationale: A macule is a flat, non-palpable change in skin color. Papules are elevated; vesicles contain
clear fluid; pustules contain purulent fluid.
Question 8. In the pathogenesis of pressure ulcers, which factor is the primary external
cause of tissue ischemia?
A. Sustained external pressure exceeding capillary closing pressure
B. Excessive moisture alone
C. Nutritional excess
D. Hyperthermia of the skin surface
Correct Answer: A
Rationale: Pressure that exceeds capillary perfusion pressure for a prolonged period causes ischemia
and eventual tissue necrosis.
Question 9. Which genetic principle explains why an autosomal dominant disorder can
appear in every generation of a pedigree?
A. Both alleles must be mutated for expression
B. The trait is carried only on the X chromosome
C. The mutation is always lethal in the homozygous state
D. Only one mutated allele is required for expression of the phenotype
Correct Answer: D
Rationale: Autosomal dominant inheritance requires only a single copy of the mutant allele for
phenotypic expression.
Question 10. What is the primary pathophysiologic event in first-degree (superficial)
burns?
A. Full-thickness destruction of dermis and epidermis
B. Damage limited to the epidermis with erythema and pain but no blistering
C. Involvement of subcutaneous fat and muscle
D. Complete loss of sensation in the burned area
Correct Answer: B
Rationale: First-degree burns affect only the epidermis, producing redness and pain without blisters.
Question 11. Which process describes programmed cell death that is energy-dependent and
does not provoke inflammation?
A. Apoptosis
B. Coagulative necrosis
NURS 231 Pathophysiology Comprehensive Final Examination 2026/2027 | Verified Questions
