NR 283 PATHOPHYSIOLOGY COMPREHENSIVE EXAM QUESTION BANK
2026/2027 | CHAMBERLAIN UNIVERSITY VERIFIED QUESTIONS &
DETAILED RATIONALES
1. Which of the following best defines the term "etiology" in the
context of pathophysiology?
A. The functional changes that accompany a particular syndrome
B. The cause or origin of a disease
C. The anticipated outcome of a disease
D. The identification of a disease through signs and symptoms
Correct Answer: B
Rationale: Etiology specifically refers to the causal factors of a disease,
including biological agents, physical forces, and genetic predispositions.
Option A describes pathophysiology, C describes prognosis, and D
describes diagnosis.
2. A patient presents with a fever, chills, and an elevated white blood
cell count. These measurable indicators are best described as:
A. Symptoms
B. Signs
C. Syndromes
D. Sequelae
Correct Answer: B
Rationale: Signs are objective, measurable manifestations of a disease
that can be observed by others (e.g., fever, WBC count). Symptoms are
subjective experiences reported by the patient (e.g., chills, nausea).
,3. Which term describes the study of the occurrence, distribution, and
determinants of health-related states in specific populations?
A. Pathology
B. Epidemiology
C. Histology
D. Nosology
Correct Answer: B
Rationale: Epidemiology focuses on the patterns, causes, and effects of
health and disease conditions in defined populations. Pathology focuses
on the nature of the disease itself.
4. At the cellular level, which adaptive mechanism involves an
increase in the number of cells in an organ or tissue?
A. Hypertrophy
B. Atrophy
C. Hyperplasia
D. Metaplasia
Correct Answer: C
Rationale: Hyperplasia is an increase in the number of cells resulting
from increased cell division. Hypertrophy is an increase in cell size,
atrophy is a decrease in cell size, and metaplasia is the reversible
replacement of one mature cell type by another.
5. A biopsy reveals that a patient's cervical cells have changed from
squamous to columnar epithelium. This adaptation is known as:
A. Dysplasia
B. Metaplasia
C. Anaplasia
D. Neoplasia
,Correct Answer: B
Rationale: Metaplasia is the reversible replacement of one mature cell
type by another, often in response to chronic irritation. Dysplasia refers
to abnormal changes in cell size, shape, and organization.
6. Which type of cell death is characterized by controlled cellular self-
destruction, often referred to as "programmed cell death"?
A. Necrosis
B. Apoptosis
C. Gangrene
D. Coagulation
Correct Answer: B
Rationale: Apoptosis is a programmed, regulated process of cell death
that eliminates unwanted or damaged cells without triggering an
inflammatory response. Necrosis is uncontrolled cell death that typically
causes inflammation.
7. During which stage of the general adaptation syndrome (GAS) does
the body attempt to maintain homeostasis through the release of
cortisol and catecholamines?
A. Alarm stage
B. Resistance stage
C. Exhaustion stage
D. Refractory stage
Correct Answer: B
Rationale: The resistance stage is characterized by the body's attempt to
adapt to the stressor and maintain homeostasis. The alarm stage is the
initial fight-or-flight response, and exhaustion occurs when adaptive
mechanisms fail.
, 8. A patient experiencing severe dehydration has a blood osmolality of
310 mOsm/kg. This condition will most likely stimulate:
A. Decreased antidiuretic hormone (ADH) release
B. Increased antidiuretic hormone (ADH) release
C. Increased atrial natriuretic peptide (ANP) release
D. Decreased aldosterone release
Correct Answer: B
Rationale: Increased serum osmolality stimulates osmoreceptors in the
hypothalamus, leading to increased ADH release from the posterior
pituitary, which promotes water reabsorption in the kidneys.
9. Which electrolyte imbalance is most likely to cause cardiac
dysrhythmias and muscle weakness in a patient with renal failure?
A. Hypernatremia
B. Hyperkalemia
C. Hypocalcemia
D. Hypochloremia
Correct Answer: B
Rationale: Hyperkalemia (elevated potassium) is a common
complication of renal failure and can lead to life-threatening cardiac
dysrhythmias and muscle weakness due to its effect on the resting
membrane potential of excitable cells.
10. In the context of acid-base balance, a patient with an arterial
blood gas of pH 7.30, PaCO2 50 mmHg, and HCO3- 24 mEq/L is
experiencing:
A. Metabolic acidosis
B. Respiratory acidosis
2026/2027 | CHAMBERLAIN UNIVERSITY VERIFIED QUESTIONS &
DETAILED RATIONALES
1. Which of the following best defines the term "etiology" in the
context of pathophysiology?
A. The functional changes that accompany a particular syndrome
B. The cause or origin of a disease
C. The anticipated outcome of a disease
D. The identification of a disease through signs and symptoms
Correct Answer: B
Rationale: Etiology specifically refers to the causal factors of a disease,
including biological agents, physical forces, and genetic predispositions.
Option A describes pathophysiology, C describes prognosis, and D
describes diagnosis.
2. A patient presents with a fever, chills, and an elevated white blood
cell count. These measurable indicators are best described as:
A. Symptoms
B. Signs
C. Syndromes
D. Sequelae
Correct Answer: B
Rationale: Signs are objective, measurable manifestations of a disease
that can be observed by others (e.g., fever, WBC count). Symptoms are
subjective experiences reported by the patient (e.g., chills, nausea).
,3. Which term describes the study of the occurrence, distribution, and
determinants of health-related states in specific populations?
A. Pathology
B. Epidemiology
C. Histology
D. Nosology
Correct Answer: B
Rationale: Epidemiology focuses on the patterns, causes, and effects of
health and disease conditions in defined populations. Pathology focuses
on the nature of the disease itself.
4. At the cellular level, which adaptive mechanism involves an
increase in the number of cells in an organ or tissue?
A. Hypertrophy
B. Atrophy
C. Hyperplasia
D. Metaplasia
Correct Answer: C
Rationale: Hyperplasia is an increase in the number of cells resulting
from increased cell division. Hypertrophy is an increase in cell size,
atrophy is a decrease in cell size, and metaplasia is the reversible
replacement of one mature cell type by another.
5. A biopsy reveals that a patient's cervical cells have changed from
squamous to columnar epithelium. This adaptation is known as:
A. Dysplasia
B. Metaplasia
C. Anaplasia
D. Neoplasia
,Correct Answer: B
Rationale: Metaplasia is the reversible replacement of one mature cell
type by another, often in response to chronic irritation. Dysplasia refers
to abnormal changes in cell size, shape, and organization.
6. Which type of cell death is characterized by controlled cellular self-
destruction, often referred to as "programmed cell death"?
A. Necrosis
B. Apoptosis
C. Gangrene
D. Coagulation
Correct Answer: B
Rationale: Apoptosis is a programmed, regulated process of cell death
that eliminates unwanted or damaged cells without triggering an
inflammatory response. Necrosis is uncontrolled cell death that typically
causes inflammation.
7. During which stage of the general adaptation syndrome (GAS) does
the body attempt to maintain homeostasis through the release of
cortisol and catecholamines?
A. Alarm stage
B. Resistance stage
C. Exhaustion stage
D. Refractory stage
Correct Answer: B
Rationale: The resistance stage is characterized by the body's attempt to
adapt to the stressor and maintain homeostasis. The alarm stage is the
initial fight-or-flight response, and exhaustion occurs when adaptive
mechanisms fail.
, 8. A patient experiencing severe dehydration has a blood osmolality of
310 mOsm/kg. This condition will most likely stimulate:
A. Decreased antidiuretic hormone (ADH) release
B. Increased antidiuretic hormone (ADH) release
C. Increased atrial natriuretic peptide (ANP) release
D. Decreased aldosterone release
Correct Answer: B
Rationale: Increased serum osmolality stimulates osmoreceptors in the
hypothalamus, leading to increased ADH release from the posterior
pituitary, which promotes water reabsorption in the kidneys.
9. Which electrolyte imbalance is most likely to cause cardiac
dysrhythmias and muscle weakness in a patient with renal failure?
A. Hypernatremia
B. Hyperkalemia
C. Hypocalcemia
D. Hypochloremia
Correct Answer: B
Rationale: Hyperkalemia (elevated potassium) is a common
complication of renal failure and can lead to life-threatening cardiac
dysrhythmias and muscle weakness due to its effect on the resting
membrane potential of excitable cells.
10. In the context of acid-base balance, a patient with an arterial
blood gas of pH 7.30, PaCO2 50 mmHg, and HCO3- 24 mEq/L is
experiencing:
A. Metabolic acidosis
B. Respiratory acidosis
