NUR 2063 EXAM 300 ACTUAL QUESTIONS AND CORRECT
ANSWERS WITH RATIONALE ALREADY GRADED A+
LATEST 2026
This comprehensive set of 300 multiple-choice questions is designed for NUR
2063 Essentials of Pathophysiology, covering cellular adaptation,
fluid/electrolyte balance, immunity, inflammation, and major system
disorders across cardiovascular, pulmonary, renal, hepatic, endocrine,
neurological, GI, hematology, and musculoskeletal systems. Each question
includes a multiple-choice format with detailed rationales explaining correct
answers and clinical reasoning. The content addresses pharmacological
mechanisms, clinical manifestations, diagnostic findings, and nursing
interventions. No questions are repeated, ensuring thorough, non-duplicative
exam preparation. The set mirrors the depth and breadth of Rasmussen
University's NUR 2063 curriculum, emphasizing pathophysiology principles
essential for nursing practice and ATI-style testing.
1. A patient with a 40-pack-year smoking history presents with a persistent cough,
hemoptysis, and weight loss. A chest CT reveals a centrally located hilar mass.
When reviewing the pathology report, which cellular characteristic would the nurse
expect to find?
A. Uniform cell size with organized tissue architecture
B. Anaplasia, hyperchromatic nuclei, and increased nuclear-to-cytoplasmic ratio
C. Apoptosis with cell shrinkage and membrane blebbing
D. Hypertrophy without cellular atypia
Answer: B
Rationale: This presentation is consistent with squamous cell carcinoma of the
lung. Malignant cells demonstrate anaplasia (loss of differentiation),
hyperchromatic nuclei (dark staining due to increased DNA), and an increased
nuclear-to-cytoplasmic ratio. These features distinguish malignant from benign
tumors.
2. A patient with chronic hypertension develops left ventricular hypertrophy
(LVH). The nurse understands that this cellular adaptation occurs through which
mechanism?
A. Increased number of cardiac myocytes (hyperplasia)
,B. Increased size of existing cardiac myocytes in response to increased workload
(hypertrophy)
C. Replacement of cardiac muscle with fibrous connective tissue
D. Conversion of cardiac muscle cells to a different cell type
Answer: B
Rationale: Cardiac myocytes are permanent cells that cannot divide after birth. The
heart responds to chronic pressure overload through hypertrophy—an increase in
the size of individual cells. This is initially adaptive but can progress to diastolic
dysfunction and heart failure.
3. A patient receiving chemotherapy develops severe myelosuppression with
neutropenia. The nurse understands this occurs because chemotherapy drugs:
A. Only affect malignant cells without harming normal cells
B. Target rapidly dividing cells, including cancer cells and normal hematopoietic
stem cells
C. Cause an allergic reaction that destroys white blood cells
D. Stimulate the immune system to attack bone marrow cells
Answer: B
Rationale: Chemotherapy drugs target rapidly dividing cells by interfering with
DNA synthesis. This affects all rapidly dividing cells, including bone marrow stem
cells, leading to pancytopenia. Neutropenia increases infection risk.
4. What is the primary difference between a sign and a symptom?
A. Signs are subjective; symptoms are objective
B. Signs are objective (erythema, edema); symptoms are subjective (headache,
nausea)
C. Signs are reported by the patient; symptoms are measured by the nurse
D. There is no clinically significant difference
Answer: B
Rationale: Signs are objective evidence of disease that can be observed or
measured (redness, swelling, fever). Symptoms are subjective experiences reported
by the patient (pain, nausea, fatigue).
5. What do mast cells release during an inflammatory response, and what is its
primary role?
A. Leukotrienes, which cause bronchoconstriction
B. Histamine, which stimulates vasodilation and increased blood flow
C. Prostaglandins, which cause pain and fever
D. Interferons, which inhibit viral replication
Answer: B
,Rationale: Mast cells release histamine during inflammation, which stimulates
vasodilation and increased blood flow to the injured area, producing redness and
warmth.
6. Which normal laboratory value range for potassium is correct?
A. 3.5-5.0 mEq/L
B. 135-145 mEq/L
C. 8.5-10.5 mg/dL
D. 95-105 mEq/L
Answer: A
Rationale: Normal serum potassium is 3.5-5.0 mEq/L. Hyperkalemia (>5.0) can
cause peaked T waves and cardiac arrest. Hypokalemia (<3.5) causes flattened T
waves, muscle weakness, and dysrhythmias.
7. Which normal laboratory value range for sodium is correct?
A. 3.5-5.0 mEq/L
B. 135-145 mEq/L
C. 8.5-10.5 mg/dL
D. 22-26 mEq/L
Answer: B
Rationale: Normal serum sodium is 135-145 mEq/L. Hyponatremia causes cerebral
edema and neurological symptoms. Hypernatremia causes thirst, muscle cramps,
and neurological changes.
8. A patient with hyperkalemia would most likely exhibit which clinical
manifestation?
A. Peaked T waves on ECG
B. Flattened T waves on ECG
C. Positive Chvostek's sign
D. Prolonged QT interval
Answer: A
Rationale: Hyperkalemia (serum potassium >5.0 mEq/L) causes peaked T waves,
muscle weakness, nausea, vomiting, and can progress to cardiac arrest. Flattened T
waves are seen in hypokalemia.
9. A patient with hypocalcemia would most likely exhibit which clinical
manifestation?
A. Positive Chvostek's sign and Trousseau's sign
B. Constipation and kidney stones
C. Peaked T waves on ECG
, D. Flushed, warm skin and increased thirst
Answer: A
Rationale: Hypocalcemia (low calcium) causes tetany, positive Chvostek's sign
(facial twitching when tapping the facial nerve), positive Trousseau's sign (carpal
spasm with blood pressure cuff inflation), and prolonged QT interval.
10. Which of the following is an example of a secondary line of defense in the
immune system?
A. Intact skin
B. Fever
C. Antibodies
D. T lymphocytes
Answer: B
Rationale: The second line of defense is nonspecific immunity, including
inflammation, fever, and phagocytosis. The first line is intact skin and mucous
membranes. The third line is specific immunity (antibodies, B cells, T cells).
11. The primary role of B lymphocytes in the immune response is to:
A. Directly kill virus-infected cells
B. Produce antibodies against specific antigens
C. Regulate the activity of other immune cells
D. Activate the complement system
Answer: B
Rationale: B lymphocytes produce antibodies (immunoglobulins) that bind to
specific antigens. Once activated, they differentiate into plasma cells that secrete
antibodies.
12. The role of suppressor T cells (regulatory T cells) is to:
A. Activate B cells to produce antibodies
B. Directly kill infected cells
C. "Turn off" the immune response after an infection resolves
D. Present antigens to other immune cells
Answer: C
Rationale: Suppressor T cells (CD8+ regulatory T cells) help "turn off" the
immune response and prevent the immune system from attacking healthy cells.
13. A patient with a history of asthma is exposed to a known allergen and develops
an immediate hypersensitivity reaction. Which immunoglobulin is primarily
responsible?
A. IgE
ANSWERS WITH RATIONALE ALREADY GRADED A+
LATEST 2026
This comprehensive set of 300 multiple-choice questions is designed for NUR
2063 Essentials of Pathophysiology, covering cellular adaptation,
fluid/electrolyte balance, immunity, inflammation, and major system
disorders across cardiovascular, pulmonary, renal, hepatic, endocrine,
neurological, GI, hematology, and musculoskeletal systems. Each question
includes a multiple-choice format with detailed rationales explaining correct
answers and clinical reasoning. The content addresses pharmacological
mechanisms, clinical manifestations, diagnostic findings, and nursing
interventions. No questions are repeated, ensuring thorough, non-duplicative
exam preparation. The set mirrors the depth and breadth of Rasmussen
University's NUR 2063 curriculum, emphasizing pathophysiology principles
essential for nursing practice and ATI-style testing.
1. A patient with a 40-pack-year smoking history presents with a persistent cough,
hemoptysis, and weight loss. A chest CT reveals a centrally located hilar mass.
When reviewing the pathology report, which cellular characteristic would the nurse
expect to find?
A. Uniform cell size with organized tissue architecture
B. Anaplasia, hyperchromatic nuclei, and increased nuclear-to-cytoplasmic ratio
C. Apoptosis with cell shrinkage and membrane blebbing
D. Hypertrophy without cellular atypia
Answer: B
Rationale: This presentation is consistent with squamous cell carcinoma of the
lung. Malignant cells demonstrate anaplasia (loss of differentiation),
hyperchromatic nuclei (dark staining due to increased DNA), and an increased
nuclear-to-cytoplasmic ratio. These features distinguish malignant from benign
tumors.
2. A patient with chronic hypertension develops left ventricular hypertrophy
(LVH). The nurse understands that this cellular adaptation occurs through which
mechanism?
A. Increased number of cardiac myocytes (hyperplasia)
,B. Increased size of existing cardiac myocytes in response to increased workload
(hypertrophy)
C. Replacement of cardiac muscle with fibrous connective tissue
D. Conversion of cardiac muscle cells to a different cell type
Answer: B
Rationale: Cardiac myocytes are permanent cells that cannot divide after birth. The
heart responds to chronic pressure overload through hypertrophy—an increase in
the size of individual cells. This is initially adaptive but can progress to diastolic
dysfunction and heart failure.
3. A patient receiving chemotherapy develops severe myelosuppression with
neutropenia. The nurse understands this occurs because chemotherapy drugs:
A. Only affect malignant cells without harming normal cells
B. Target rapidly dividing cells, including cancer cells and normal hematopoietic
stem cells
C. Cause an allergic reaction that destroys white blood cells
D. Stimulate the immune system to attack bone marrow cells
Answer: B
Rationale: Chemotherapy drugs target rapidly dividing cells by interfering with
DNA synthesis. This affects all rapidly dividing cells, including bone marrow stem
cells, leading to pancytopenia. Neutropenia increases infection risk.
4. What is the primary difference between a sign and a symptom?
A. Signs are subjective; symptoms are objective
B. Signs are objective (erythema, edema); symptoms are subjective (headache,
nausea)
C. Signs are reported by the patient; symptoms are measured by the nurse
D. There is no clinically significant difference
Answer: B
Rationale: Signs are objective evidence of disease that can be observed or
measured (redness, swelling, fever). Symptoms are subjective experiences reported
by the patient (pain, nausea, fatigue).
5. What do mast cells release during an inflammatory response, and what is its
primary role?
A. Leukotrienes, which cause bronchoconstriction
B. Histamine, which stimulates vasodilation and increased blood flow
C. Prostaglandins, which cause pain and fever
D. Interferons, which inhibit viral replication
Answer: B
,Rationale: Mast cells release histamine during inflammation, which stimulates
vasodilation and increased blood flow to the injured area, producing redness and
warmth.
6. Which normal laboratory value range for potassium is correct?
A. 3.5-5.0 mEq/L
B. 135-145 mEq/L
C. 8.5-10.5 mg/dL
D. 95-105 mEq/L
Answer: A
Rationale: Normal serum potassium is 3.5-5.0 mEq/L. Hyperkalemia (>5.0) can
cause peaked T waves and cardiac arrest. Hypokalemia (<3.5) causes flattened T
waves, muscle weakness, and dysrhythmias.
7. Which normal laboratory value range for sodium is correct?
A. 3.5-5.0 mEq/L
B. 135-145 mEq/L
C. 8.5-10.5 mg/dL
D. 22-26 mEq/L
Answer: B
Rationale: Normal serum sodium is 135-145 mEq/L. Hyponatremia causes cerebral
edema and neurological symptoms. Hypernatremia causes thirst, muscle cramps,
and neurological changes.
8. A patient with hyperkalemia would most likely exhibit which clinical
manifestation?
A. Peaked T waves on ECG
B. Flattened T waves on ECG
C. Positive Chvostek's sign
D. Prolonged QT interval
Answer: A
Rationale: Hyperkalemia (serum potassium >5.0 mEq/L) causes peaked T waves,
muscle weakness, nausea, vomiting, and can progress to cardiac arrest. Flattened T
waves are seen in hypokalemia.
9. A patient with hypocalcemia would most likely exhibit which clinical
manifestation?
A. Positive Chvostek's sign and Trousseau's sign
B. Constipation and kidney stones
C. Peaked T waves on ECG
, D. Flushed, warm skin and increased thirst
Answer: A
Rationale: Hypocalcemia (low calcium) causes tetany, positive Chvostek's sign
(facial twitching when tapping the facial nerve), positive Trousseau's sign (carpal
spasm with blood pressure cuff inflation), and prolonged QT interval.
10. Which of the following is an example of a secondary line of defense in the
immune system?
A. Intact skin
B. Fever
C. Antibodies
D. T lymphocytes
Answer: B
Rationale: The second line of defense is nonspecific immunity, including
inflammation, fever, and phagocytosis. The first line is intact skin and mucous
membranes. The third line is specific immunity (antibodies, B cells, T cells).
11. The primary role of B lymphocytes in the immune response is to:
A. Directly kill virus-infected cells
B. Produce antibodies against specific antigens
C. Regulate the activity of other immune cells
D. Activate the complement system
Answer: B
Rationale: B lymphocytes produce antibodies (immunoglobulins) that bind to
specific antigens. Once activated, they differentiate into plasma cells that secrete
antibodies.
12. The role of suppressor T cells (regulatory T cells) is to:
A. Activate B cells to produce antibodies
B. Directly kill infected cells
C. "Turn off" the immune response after an infection resolves
D. Present antigens to other immune cells
Answer: C
Rationale: Suppressor T cells (CD8+ regulatory T cells) help "turn off" the
immune response and prevent the immune system from attacking healthy cells.
13. A patient with a history of asthma is exposed to a known allergen and develops
an immediate hypersensitivity reaction. Which immunoglobulin is primarily
responsible?
A. IgE
