LATEST UPDATE CHAMBERLAIN UNIVERSITY NR283
PATHOPHYSIOLOGY EXAMS 1, 2, 3 & FINAL EXAM
COMPREHENSIVE PRACTICE QUESTION BANK (200
Q&AS WITH HYPER-DETAILED RATIONALES)
This premium study bundle delivers a comprehensive collection of high-
yield, multiple-choice practice questions explicitly tailored to the
Chamberlain University NR283 Pathophysiology curriculum. Every
question includes direct answer validation along with an in-depth, bolded
rationale designed to cement understanding of complex cellular,
cardiovascular, respiratory, renal, and endocrine disease mechanisms. It
serves as an ideal, rigorous testing resource to ensure mastery across
Exam 1, Exam 2, Exam 3, and the comprehensive Final Exam.
Question 1
A 55-year-old female presents with severe peripheral edema and a serum
albumin level of 1.8 g/dL. Which of the following forces is directly altered,
leading to her edema?
A. Increased capillary hydrostatic pressure
B. Decreased capillary oncotic pressure
C. Increased interstitial oncotic pressure
D. Decreased interstitial hydrostatic pressure
Answer: B
Rationale: Albumin is the primary plasma protein responsible for
maintaining colloid osmotic (oncotic) pressure within the vascular space.
When serum albumin drops severely (hypoalbuminemia), capillary oncotic
pressure falls, preventing fluid from being pulled back into the
intravascular compartment from the tissues, resulting in systemic edema.
,Question 2
A patient with a history of chronic smoking undergoes a bronchoscopy.
The pathology report notes that the normal ciliated columnar epithelium of
the airways has been replaced by stratified squamous epithelium. This is
an example of which cellular adaptation?
A. Dysplasia
B. Hyperplasia
C. Metaplasia
D. Anaplasia
Answer: C
Rationale: Metaplasia is the reversible replacement of one mature somatic
cell type by another mature somatic cell type, often in response to chronic
irritation or stress. While the new cell type (stratified squamous) handles
the stress of cigarette smoke better, it loses vital functions like ciliary
clearance.
Question 3
An 8-year-old boy is brought to the emergency department experiencing a
severe anaphylactic reaction to a peanut. Which antibody class is
responsible for mediating this Type I hypersensitivity reaction?
A. IgG
B. IgM
C. IgA
D. IgE
Answer: D
Rationale: Type I hypersensitivity reactions are mediated by IgE antibodies.
Upon re-exposure to an allergen, the antigen cross-links IgE molecules
bound to the surface of mast cells and basophils, triggering immediate
degranulation and the release of chemical mediators like histamine.
,Question 4
A patient’s arterial blood gas (ABG) results are as follows: pH 7.26, PaCO2
55 mmHg, HCO3- 24 mEq/L. How should the nurse interpret this acid-base
imbalance?
A. Uncompensated metabolic acidosis
B. Uncompensated respiratory acidosis
C. Fully compensated respiratory acidosis
D. Partially compensated metabolic alkalosis
Answer: B
Rationale: A pH below 7.35 indicates acidosis. The PaCO2 is elevated above
normal (35–45 mmHg), matching the acidic pH, which indicates a
respiratory origin. Because the HCO3- is normal (22–26 mEq/L), the
kidneys have not yet begun to compensate, making it uncompensated.
Question 5
During an acute inflammatory response, which cell type arrives first at the
site of injury to phagocytize invading microorganisms?
A. Monocytes
B. Macrophages
C. Neutrophils
D. Lymphocytes
Answer: C
Rationale: Neutrophils (polymorphonuclear leukocytes) are the primary,
earliest cellular responders in acute inflammation, arriving within 6 to 12
hours of injury. They rapidly ingest bacteria and cellular debris before
dying and forming purulent exudate (pus).
Question 6
, A 68-year-old male with a history of long-standing, untreated systemic
hypertension is diagnosed with left ventricular heart failure. What specific
cellular adaptation occurred in his myocardium prior to failure?
A. Compensatory hyperplasia
B. Pathologic hypertrophy
C. Metaplasia
D. Atrophy
Answer: B
Rationale: Pathologic hypertrophy occurs when cells increase in size due
to an increased workload or chronic mechanical stress, such as pushing
against high systemic vascular resistance. Unlike skeletal muscle
hypertrophy, myocardial hypertrophy eventually outgrows its blood supply,
leading to ischemia and heart failure.
Question 7
A client with syndrome of inappropriate antidiuretic hormone (SIADH) is at
high risk for developing which of the following electrolyte imbalances?
A. Hypernatremia
B. Hyponatremia
C. Hyperkalemia
D. Hypokalemia
Answer: B
Rationale: SIADH causes excessive, unregulated secretion of antidiuretic
hormone (ADH), leading to massive water reabsorption in the renal
collecting ducts. This expanded intravascular volume dilutes the
concentration of sodium in the blood, resulting in dilutional hyponatremia.
Question 8
Which of the following descriptions best characterizes a Type IV
hypersensitivity reaction?
PATHOPHYSIOLOGY EXAMS 1, 2, 3 & FINAL EXAM
COMPREHENSIVE PRACTICE QUESTION BANK (200
Q&AS WITH HYPER-DETAILED RATIONALES)
This premium study bundle delivers a comprehensive collection of high-
yield, multiple-choice practice questions explicitly tailored to the
Chamberlain University NR283 Pathophysiology curriculum. Every
question includes direct answer validation along with an in-depth, bolded
rationale designed to cement understanding of complex cellular,
cardiovascular, respiratory, renal, and endocrine disease mechanisms. It
serves as an ideal, rigorous testing resource to ensure mastery across
Exam 1, Exam 2, Exam 3, and the comprehensive Final Exam.
Question 1
A 55-year-old female presents with severe peripheral edema and a serum
albumin level of 1.8 g/dL. Which of the following forces is directly altered,
leading to her edema?
A. Increased capillary hydrostatic pressure
B. Decreased capillary oncotic pressure
C. Increased interstitial oncotic pressure
D. Decreased interstitial hydrostatic pressure
Answer: B
Rationale: Albumin is the primary plasma protein responsible for
maintaining colloid osmotic (oncotic) pressure within the vascular space.
When serum albumin drops severely (hypoalbuminemia), capillary oncotic
pressure falls, preventing fluid from being pulled back into the
intravascular compartment from the tissues, resulting in systemic edema.
,Question 2
A patient with a history of chronic smoking undergoes a bronchoscopy.
The pathology report notes that the normal ciliated columnar epithelium of
the airways has been replaced by stratified squamous epithelium. This is
an example of which cellular adaptation?
A. Dysplasia
B. Hyperplasia
C. Metaplasia
D. Anaplasia
Answer: C
Rationale: Metaplasia is the reversible replacement of one mature somatic
cell type by another mature somatic cell type, often in response to chronic
irritation or stress. While the new cell type (stratified squamous) handles
the stress of cigarette smoke better, it loses vital functions like ciliary
clearance.
Question 3
An 8-year-old boy is brought to the emergency department experiencing a
severe anaphylactic reaction to a peanut. Which antibody class is
responsible for mediating this Type I hypersensitivity reaction?
A. IgG
B. IgM
C. IgA
D. IgE
Answer: D
Rationale: Type I hypersensitivity reactions are mediated by IgE antibodies.
Upon re-exposure to an allergen, the antigen cross-links IgE molecules
bound to the surface of mast cells and basophils, triggering immediate
degranulation and the release of chemical mediators like histamine.
,Question 4
A patient’s arterial blood gas (ABG) results are as follows: pH 7.26, PaCO2
55 mmHg, HCO3- 24 mEq/L. How should the nurse interpret this acid-base
imbalance?
A. Uncompensated metabolic acidosis
B. Uncompensated respiratory acidosis
C. Fully compensated respiratory acidosis
D. Partially compensated metabolic alkalosis
Answer: B
Rationale: A pH below 7.35 indicates acidosis. The PaCO2 is elevated above
normal (35–45 mmHg), matching the acidic pH, which indicates a
respiratory origin. Because the HCO3- is normal (22–26 mEq/L), the
kidneys have not yet begun to compensate, making it uncompensated.
Question 5
During an acute inflammatory response, which cell type arrives first at the
site of injury to phagocytize invading microorganisms?
A. Monocytes
B. Macrophages
C. Neutrophils
D. Lymphocytes
Answer: C
Rationale: Neutrophils (polymorphonuclear leukocytes) are the primary,
earliest cellular responders in acute inflammation, arriving within 6 to 12
hours of injury. They rapidly ingest bacteria and cellular debris before
dying and forming purulent exudate (pus).
Question 6
, A 68-year-old male with a history of long-standing, untreated systemic
hypertension is diagnosed with left ventricular heart failure. What specific
cellular adaptation occurred in his myocardium prior to failure?
A. Compensatory hyperplasia
B. Pathologic hypertrophy
C. Metaplasia
D. Atrophy
Answer: B
Rationale: Pathologic hypertrophy occurs when cells increase in size due
to an increased workload or chronic mechanical stress, such as pushing
against high systemic vascular resistance. Unlike skeletal muscle
hypertrophy, myocardial hypertrophy eventually outgrows its blood supply,
leading to ischemia and heart failure.
Question 7
A client with syndrome of inappropriate antidiuretic hormone (SIADH) is at
high risk for developing which of the following electrolyte imbalances?
A. Hypernatremia
B. Hyponatremia
C. Hyperkalemia
D. Hypokalemia
Answer: B
Rationale: SIADH causes excessive, unregulated secretion of antidiuretic
hormone (ADH), leading to massive water reabsorption in the renal
collecting ducts. This expanded intravascular volume dilutes the
concentration of sodium in the blood, resulting in dilutional hyponatremia.
Question 8
Which of the following descriptions best characterizes a Type IV
hypersensitivity reaction?
