NURS 6501 Exam 1 V1 | NURS 6501 Advanced
Pathophysiology | Actual Q&A with Rationale (NURS
6501 Exam 1) | Walden
Section Questions Format
Section A Q1–Q30 Multiple Choice
Section B Q31–Q42 Short Answer
Section C Q43–Q50 Long Answer
Total 50 Questions
SECTION A: MULTIPLE CHOICE QUESTIONS
Instructions: Select the best answer for each question.
Q1. Which cellular adaptation is characterized by an increase in cell size?
A. Hyperplasia
B. Hypertrophy
C. Atrophy
D. Metaplasia
Answer: B. Hypertrophy
Rationale: Hypertrophy refers to an increase in cell size, whereas hyperplasia is an increase in
cell number. Atrophy involves a decrease in cell size, while metaplasia involves a change from
one differentiated cell type to another.
Q2. The primary function of the Na⁺/K⁺ pump is:
A. Maintain osmotic pressure
B. Regulate intracellular calcium
C. Preserve resting membrane potential
D. Facilitate protein synthesis
Answer: C. Preserve resting membrane potential
Rationale: The Na⁺/K⁺ ATPase maintains the electrochemical gradients necessary for normal
nerve impulse transmission and muscle contraction.
,Q3. Which cytokine is most associated with acute inflammation?
A. IL-1
B. IL-10
C. TNF-β
D. Interferon-γ
Answer: A. IL-1
Rationale: IL-1 and TNF-α are important mediators of acute inflammation. They contribute to
fever, endothelial activation, and leukocyte recruitment.
Q4. The Glasgow Coma Scale evaluates:
A. Motor strength
B. Level of consciousness
C. Reflexes
D. Sensory perception
Answer: B. Level of consciousness
Rationale: The Glasgow Coma Scale assesses eye opening, verbal response, and motor
response to determine a patient's level of consciousness.
Q5. Which hormone increases blood calcium levels?
A. Calcitonin
B. Parathyroid hormone
C. Insulin
D. Aldosterone
Answer: B. Parathyroid hormone
Rationale: Parathyroid hormone increases serum calcium through effects on bone, the kidneys,
and vitamin D activation.
, Q6. Starling’s Law of the Heart states:
A. Stroke volume increases with venous return
B. Stroke volume decreases with preload
C. Cardiac output is independent of end-diastolic volume
D. Heart rate determines contractility
Answer: A. Stroke volume increases with venous return
Rationale: Increased venous return increases preload and stretches myocardial fibers, resulting
in increased contractile force and stroke volume.
Q7. Which electrolyte imbalance is most associated with ventricular arrhythmias?
A. Hypokalemia
B. Hypernatremia
C. Hypocalcemia
D. Hypermagnesemia
Answer: A. Hypokalemia
Rationale: Low serum potassium alters cardiac membrane excitability and conduction,
increasing the risk of potentially serious dysrhythmias.
Q8. COPD primarily causes:
A. Restrictive lung disease
B. Obstructive airflow limitation
C. Increased tidal volume
D. Decreased airway resistance
Answer: B. Obstructive airflow limitation
Rationale: COPD is characterized by persistent airflow limitation resulting from airway
obstruction, inflammation, and structural changes in the lungs.
Q9. Which renal hormone regulates red blood cell production?
Pathophysiology | Actual Q&A with Rationale (NURS
6501 Exam 1) | Walden
Section Questions Format
Section A Q1–Q30 Multiple Choice
Section B Q31–Q42 Short Answer
Section C Q43–Q50 Long Answer
Total 50 Questions
SECTION A: MULTIPLE CHOICE QUESTIONS
Instructions: Select the best answer for each question.
Q1. Which cellular adaptation is characterized by an increase in cell size?
A. Hyperplasia
B. Hypertrophy
C. Atrophy
D. Metaplasia
Answer: B. Hypertrophy
Rationale: Hypertrophy refers to an increase in cell size, whereas hyperplasia is an increase in
cell number. Atrophy involves a decrease in cell size, while metaplasia involves a change from
one differentiated cell type to another.
Q2. The primary function of the Na⁺/K⁺ pump is:
A. Maintain osmotic pressure
B. Regulate intracellular calcium
C. Preserve resting membrane potential
D. Facilitate protein synthesis
Answer: C. Preserve resting membrane potential
Rationale: The Na⁺/K⁺ ATPase maintains the electrochemical gradients necessary for normal
nerve impulse transmission and muscle contraction.
,Q3. Which cytokine is most associated with acute inflammation?
A. IL-1
B. IL-10
C. TNF-β
D. Interferon-γ
Answer: A. IL-1
Rationale: IL-1 and TNF-α are important mediators of acute inflammation. They contribute to
fever, endothelial activation, and leukocyte recruitment.
Q4. The Glasgow Coma Scale evaluates:
A. Motor strength
B. Level of consciousness
C. Reflexes
D. Sensory perception
Answer: B. Level of consciousness
Rationale: The Glasgow Coma Scale assesses eye opening, verbal response, and motor
response to determine a patient's level of consciousness.
Q5. Which hormone increases blood calcium levels?
A. Calcitonin
B. Parathyroid hormone
C. Insulin
D. Aldosterone
Answer: B. Parathyroid hormone
Rationale: Parathyroid hormone increases serum calcium through effects on bone, the kidneys,
and vitamin D activation.
, Q6. Starling’s Law of the Heart states:
A. Stroke volume increases with venous return
B. Stroke volume decreases with preload
C. Cardiac output is independent of end-diastolic volume
D. Heart rate determines contractility
Answer: A. Stroke volume increases with venous return
Rationale: Increased venous return increases preload and stretches myocardial fibers, resulting
in increased contractile force and stroke volume.
Q7. Which electrolyte imbalance is most associated with ventricular arrhythmias?
A. Hypokalemia
B. Hypernatremia
C. Hypocalcemia
D. Hypermagnesemia
Answer: A. Hypokalemia
Rationale: Low serum potassium alters cardiac membrane excitability and conduction,
increasing the risk of potentially serious dysrhythmias.
Q8. COPD primarily causes:
A. Restrictive lung disease
B. Obstructive airflow limitation
C. Increased tidal volume
D. Decreased airway resistance
Answer: B. Obstructive airflow limitation
Rationale: COPD is characterized by persistent airflow limitation resulting from airway
obstruction, inflammation, and structural changes in the lungs.
Q9. Which renal hormone regulates red blood cell production?
