NU 631 – Quiz 7 Full Questions
and Correct Answers with
Rationales | 2026/27 Update |
100% Correct – Herzing
University.
1. Which of the following best defines the concept of "health" in the context of
advanced nursing practice?
A. The absence of disease or infirmity.
B. A state of complete physical, mental, and social well-being.
C. The ability to perform activities of daily living without assistance.
D. A dynamic state of adaptation to internal and external stressors.
Correct Answer: B
Rationale: The World Health Organization (WHO) defines health as a state of
complete physical, mental, and social well-being, not merely the absence of
disease. While D is a nursing-focused definition, B is the foundational, holistic
definition used globally. A and C are incomplete and outdated definitions.
2. A patient presents with a sudden onset of severe, tearing chest pain that
radiates to the back. Which condition should be the nurse's highest priority to
rule out?
A. Myocardial infarction.
B. Pulmonary embolism.
C. Aortic dissection.
D. Pericarditis.
, Correct Answer: C
Rationale: The classic presentation of aortic dissection is sudden, severe,
tearing or ripping pain that often radiates to the back. While MI and PE are also
emergencies, the "tearing" quality and radiation to the back are highly specific to
aortic dissection, requiring immediate diagnostic imaging (e.g., CT angiogram).
3. Which of the following is a primary mechanism of action for ACE inhibitors?
A. Blocking angiotensin II receptors.
B. Inhibiting the conversion of angiotensin I to angiotensin II.
C. Directly stimulating beta-1 receptors.
D. Blocking calcium channels in vascular smooth muscle.
Correct Answer: B
Rationale: ACE inhibitors (e.g., lisinopril) work by inhibiting the angiotensin-
converting enzyme, which is responsible for converting angiotensin I to the potent
vasoconstrictor angiotensin II. This leads to vasodilation and reduced aldosterone
secretion. A describes ARBs, C describes beta-agonists, and D describes calcium
channel blockers.
4. In the context of advanced pathophysiology, which statement accurately
describes the role of cytokines in the inflammatory response?
A. They are antibodies produced by B-lymphocytes.
B. They are signaling molecules that mediate and regulate immunity and
inflammation.
C. They are enzymes that break down bacterial cell walls.
D. They are structural proteins that form the extracellular matrix.
Correct Answer: B
Rationale: Cytokines (e.g., interleukins, TNF-alpha) are small signaling proteins
released by cells that act as chemical messengers to regulate the immune
response and inflammation. They are not antibodies (A), enzymes (C), or
structural proteins (D).
5. A patient with a history of heart failure is prescribed furosemide. Which lab
value should the nurse monitor most closely?
A. Serum sodium.
,B. Serum potassium.
C. Serum calcium.
D. Serum magnesium.
Correct Answer: B
Rationale: Furosemide is a loop diuretic that causes significant excretion of
potassium, leading to a high risk of hypokalemia. While sodium, calcium, and
magnesium can also be affected, potassium is the most critical and common
electrolyte disturbance to monitor to prevent cardiac dysrhythmias.
6. Which of the following is a key diagnostic criterion for metabolic syndrome?
A. Fasting blood glucose < 100 mg/dL.
B. Blood pressure > 130/85 mmHg.
C. Triglycerides < 150 mg/dL.
D. HDL cholesterol > 60 mg/dL.
Correct Answer: B
Rationale: Metabolic syndrome is diagnosed when a patient has at least three
of five specific criteria. These include elevated blood pressure (≥130/85 mmHg),
elevated fasting glucose (≥100 mg/dL), elevated triglycerides (≥150 mg/dL),
reduced HDL (<40 mg/dL for men, <50 mg/dL for women), and increased waist
circumference. Therefore, B is a criterion, while A, C, and D are not.
7. A patient is experiencing an acute asthma exacerbation. Which medication is
considered the first-line treatment for rapid bronchodilation?
A. Inhaled corticosteroid (e.g., fluticasone).
B. Long-acting beta-agonist (e.g., salmeterol).
C. Short-acting beta-agonist (e.g., albuterol).
D. Leukotriene receptor antagonist (e.g., montelukast).
Correct Answer: C
Rationale: Short-acting beta-agonists (SABAs) like albuterol are the treatment
of choice for acute asthma attacks because they provide rapid, short-term relief by
relaxing bronchial smooth muscle. Inhaled corticosteroids are for long-term
control, LABAs are for maintenance, and montelukast is an oral maintenance
medication.
, 8. What is the primary pathophysiological change in chronic obstructive
pulmonary disease (COPD)?
A. Reversible airway obstruction.
B. Irreversible airflow limitation.
C. Increased elastic recoil of the lungs.
D. Thickening of the pleural membranes.
Correct Answer: B
Rationale: COPD is characterized by persistent, irreversible airflow limitation
due to a mixture of small airway disease (obstructive bronchiolitis) and
parenchymal destruction (emphysema). Asthma (A) is typically reversible.
Emphysema decreases elastic recoil (C), and pleural thickening (D) is not the
primary mechanism.
9. A nurse is teaching a patient about warfarin therapy. Which instruction is
most important to include?
A. "Increase your intake of green leafy vegetables."
B. "Take aspirin for any minor headaches."
C. "Use a soft toothbrush and an electric razor."
D. "Double the dose if you miss a dose."
Correct Answer: C
Rationale: Warfarin is an anticoagulant that increases bleeding risk. Using a
soft toothbrush and electric razor helps prevent bleeding from minor trauma.
Patients should maintain consistent (not increased) Vitamin K intake (A), avoid
NSAIDs like aspirin (B), and never double a missed dose (D).
10. Which of the following is a classic sign of increased intracranial pressure
(ICP) in an adult?
A. Tachycardia.
B. Hypotension.
C. Bradypnea.
D. Hyperthermia.
Correct Answer: C
Rationale: Cushing's triad, a late sign of increased ICP, consists of bradycardia,
and Correct Answers with
Rationales | 2026/27 Update |
100% Correct – Herzing
University.
1. Which of the following best defines the concept of "health" in the context of
advanced nursing practice?
A. The absence of disease or infirmity.
B. A state of complete physical, mental, and social well-being.
C. The ability to perform activities of daily living without assistance.
D. A dynamic state of adaptation to internal and external stressors.
Correct Answer: B
Rationale: The World Health Organization (WHO) defines health as a state of
complete physical, mental, and social well-being, not merely the absence of
disease. While D is a nursing-focused definition, B is the foundational, holistic
definition used globally. A and C are incomplete and outdated definitions.
2. A patient presents with a sudden onset of severe, tearing chest pain that
radiates to the back. Which condition should be the nurse's highest priority to
rule out?
A. Myocardial infarction.
B. Pulmonary embolism.
C. Aortic dissection.
D. Pericarditis.
, Correct Answer: C
Rationale: The classic presentation of aortic dissection is sudden, severe,
tearing or ripping pain that often radiates to the back. While MI and PE are also
emergencies, the "tearing" quality and radiation to the back are highly specific to
aortic dissection, requiring immediate diagnostic imaging (e.g., CT angiogram).
3. Which of the following is a primary mechanism of action for ACE inhibitors?
A. Blocking angiotensin II receptors.
B. Inhibiting the conversion of angiotensin I to angiotensin II.
C. Directly stimulating beta-1 receptors.
D. Blocking calcium channels in vascular smooth muscle.
Correct Answer: B
Rationale: ACE inhibitors (e.g., lisinopril) work by inhibiting the angiotensin-
converting enzyme, which is responsible for converting angiotensin I to the potent
vasoconstrictor angiotensin II. This leads to vasodilation and reduced aldosterone
secretion. A describes ARBs, C describes beta-agonists, and D describes calcium
channel blockers.
4. In the context of advanced pathophysiology, which statement accurately
describes the role of cytokines in the inflammatory response?
A. They are antibodies produced by B-lymphocytes.
B. They are signaling molecules that mediate and regulate immunity and
inflammation.
C. They are enzymes that break down bacterial cell walls.
D. They are structural proteins that form the extracellular matrix.
Correct Answer: B
Rationale: Cytokines (e.g., interleukins, TNF-alpha) are small signaling proteins
released by cells that act as chemical messengers to regulate the immune
response and inflammation. They are not antibodies (A), enzymes (C), or
structural proteins (D).
5. A patient with a history of heart failure is prescribed furosemide. Which lab
value should the nurse monitor most closely?
A. Serum sodium.
,B. Serum potassium.
C. Serum calcium.
D. Serum magnesium.
Correct Answer: B
Rationale: Furosemide is a loop diuretic that causes significant excretion of
potassium, leading to a high risk of hypokalemia. While sodium, calcium, and
magnesium can also be affected, potassium is the most critical and common
electrolyte disturbance to monitor to prevent cardiac dysrhythmias.
6. Which of the following is a key diagnostic criterion for metabolic syndrome?
A. Fasting blood glucose < 100 mg/dL.
B. Blood pressure > 130/85 mmHg.
C. Triglycerides < 150 mg/dL.
D. HDL cholesterol > 60 mg/dL.
Correct Answer: B
Rationale: Metabolic syndrome is diagnosed when a patient has at least three
of five specific criteria. These include elevated blood pressure (≥130/85 mmHg),
elevated fasting glucose (≥100 mg/dL), elevated triglycerides (≥150 mg/dL),
reduced HDL (<40 mg/dL for men, <50 mg/dL for women), and increased waist
circumference. Therefore, B is a criterion, while A, C, and D are not.
7. A patient is experiencing an acute asthma exacerbation. Which medication is
considered the first-line treatment for rapid bronchodilation?
A. Inhaled corticosteroid (e.g., fluticasone).
B. Long-acting beta-agonist (e.g., salmeterol).
C. Short-acting beta-agonist (e.g., albuterol).
D. Leukotriene receptor antagonist (e.g., montelukast).
Correct Answer: C
Rationale: Short-acting beta-agonists (SABAs) like albuterol are the treatment
of choice for acute asthma attacks because they provide rapid, short-term relief by
relaxing bronchial smooth muscle. Inhaled corticosteroids are for long-term
control, LABAs are for maintenance, and montelukast is an oral maintenance
medication.
, 8. What is the primary pathophysiological change in chronic obstructive
pulmonary disease (COPD)?
A. Reversible airway obstruction.
B. Irreversible airflow limitation.
C. Increased elastic recoil of the lungs.
D. Thickening of the pleural membranes.
Correct Answer: B
Rationale: COPD is characterized by persistent, irreversible airflow limitation
due to a mixture of small airway disease (obstructive bronchiolitis) and
parenchymal destruction (emphysema). Asthma (A) is typically reversible.
Emphysema decreases elastic recoil (C), and pleural thickening (D) is not the
primary mechanism.
9. A nurse is teaching a patient about warfarin therapy. Which instruction is
most important to include?
A. "Increase your intake of green leafy vegetables."
B. "Take aspirin for any minor headaches."
C. "Use a soft toothbrush and an electric razor."
D. "Double the dose if you miss a dose."
Correct Answer: C
Rationale: Warfarin is an anticoagulant that increases bleeding risk. Using a
soft toothbrush and electric razor helps prevent bleeding from minor trauma.
Patients should maintain consistent (not increased) Vitamin K intake (A), avoid
NSAIDs like aspirin (B), and never double a missed dose (D).
10. Which of the following is a classic sign of increased intracranial pressure
(ICP) in an adult?
A. Tachycardia.
B. Hypotension.
C. Bradypnea.
D. Hyperthermia.
Correct Answer: C
Rationale: Cushing's triad, a late sign of increased ICP, consists of bradycardia,
