BSN HESI 266 Med Surg Exam
99 High-Accuracy Questions | 2025/2026 Real Exam Format | Professionally
Verified | A+ Quality
EXAM OVERVIEW
This 2025/2026 validated resource contains the complete BSN HESI 266 Med Surg
Exam with actual questions and verified answers. The examination measures analytical
reasoning, professional judgment, and practical application through 99 evidence-
based scenarios that assess competency in contemporary professional practice.
EXAM FEATURES
• 99 Evidence-Based Multiple Choice Questions
• Comprehensive Answer Keys with Clinical Rationales
• Critical Analysis and Applied Reasoning Emphasis
• Current 2025 Evidence-Based Practice Standards Integration
• 8 Professional Domains Comprehensively Assessed
• Real-World Application Scenarios with Professional Context
CORE TESTING AREAS
→ **1. Cardiovascular**
→ **2. Respiratory**
→ **3. Neurologic**
→ **4. Endocrine**
→ **5. Renal & Fluid/Electrolytes**
→ **6. Gastrointestinal**
→ **7. Musculoskeletal & Immobility**
→ **8. Hematologic**
Page 1
,Question 1
A patient with congestive heart failure is prescribed digoxin. What is the primary
mechanism of action of digoxin?
A. Inhibiting the sodium-potassium ATPase pump
B. Increasing the force of cardiac contractions
C. Slowing heart rate
D. Increasing vascular tone
Correct Answer
B
Rationale:
Digoxin increases the force of cardiac contractions by increasing intracellular calcium.
Question 2
A patient with chronic obstructive pulmonary disease (COPD) requires oxygen therapy.
What type of oxygen delivery system is most suitable for this patient?
A. Helmets
B. Respiratory masks
C. Venturi masks
D. Oxygen tents
Correct Answer
C
Rationale:
Venturi masks deliver precise concentrations of oxygen and are suitable for patients with COPD.
Page 2
,Question 3
A patient with hypertension is prescribed lisinopril, an ACE inhibitor. What is the primary
effect of lisinopril on the renin-angiotensin-aldosterone system (RAAS)?
A. Inhibiting the conversion of angiotensin I to angiotensin II
B. Increasing the release of renin
C. Decreasing the release of aldosterone
D. Increased potassium levels
Correct Answer
A
Rationale:
Lisinopril inhibits the conversion of angiotensin I to angiotensin II, reducing vasoconstriction and blood
pressure.
Question 4
A patient with a myocardial infarction (MI) develops a ventricular dysrhythmia. What is the
primary goal of treatment with lidocaine?
A. Increasing the force of cardiac contractions
B. Slowing the heart rate
C. Converting the dysrhythmia to a normal sinus rhythm
D. Reducing the risk of reinfarction
Correct Answer
C
Rationale:
Lidocaine is used to convert ventricular dysrhythmias to a normal sinus rhythm.
Page 3
, Question 5
A patient with heart failure has a left ventricular ejection fraction (LVEF) of 20%. What is
the primary classification of heart failure in this patient?
A. HFpEF
B. HFrEF
C. HFmrEF
D. HFpEF with preserved LVEF
Correct Answer
B
Rationale:
HFrEF (Heart Failure with Reduced Ejection Fraction) is characterized by an LVEF ≤ 40%.
Question 6
The primary pathophysiological mechanism of heart failure is the inability of the heart to
relax between contractions, resulting in a decrease in cardiac output. Which of the
following is a consequence of this mechanism?
A. Increased left ventricular contractility
B. Decreased myocardial oxygen demand
C. Increased systemic vascular resistance
D. Reduced left ventricular compliance
Correct Answer
Reduced left ventricular compliance
Rationale:
Reduced left ventricular compliance is a direct consequence of the heart's inability to relax between
contractions.
Page 4
99 High-Accuracy Questions | 2025/2026 Real Exam Format | Professionally
Verified | A+ Quality
EXAM OVERVIEW
This 2025/2026 validated resource contains the complete BSN HESI 266 Med Surg
Exam with actual questions and verified answers. The examination measures analytical
reasoning, professional judgment, and practical application through 99 evidence-
based scenarios that assess competency in contemporary professional practice.
EXAM FEATURES
• 99 Evidence-Based Multiple Choice Questions
• Comprehensive Answer Keys with Clinical Rationales
• Critical Analysis and Applied Reasoning Emphasis
• Current 2025 Evidence-Based Practice Standards Integration
• 8 Professional Domains Comprehensively Assessed
• Real-World Application Scenarios with Professional Context
CORE TESTING AREAS
→ **1. Cardiovascular**
→ **2. Respiratory**
→ **3. Neurologic**
→ **4. Endocrine**
→ **5. Renal & Fluid/Electrolytes**
→ **6. Gastrointestinal**
→ **7. Musculoskeletal & Immobility**
→ **8. Hematologic**
Page 1
,Question 1
A patient with congestive heart failure is prescribed digoxin. What is the primary
mechanism of action of digoxin?
A. Inhibiting the sodium-potassium ATPase pump
B. Increasing the force of cardiac contractions
C. Slowing heart rate
D. Increasing vascular tone
Correct Answer
B
Rationale:
Digoxin increases the force of cardiac contractions by increasing intracellular calcium.
Question 2
A patient with chronic obstructive pulmonary disease (COPD) requires oxygen therapy.
What type of oxygen delivery system is most suitable for this patient?
A. Helmets
B. Respiratory masks
C. Venturi masks
D. Oxygen tents
Correct Answer
C
Rationale:
Venturi masks deliver precise concentrations of oxygen and are suitable for patients with COPD.
Page 2
,Question 3
A patient with hypertension is prescribed lisinopril, an ACE inhibitor. What is the primary
effect of lisinopril on the renin-angiotensin-aldosterone system (RAAS)?
A. Inhibiting the conversion of angiotensin I to angiotensin II
B. Increasing the release of renin
C. Decreasing the release of aldosterone
D. Increased potassium levels
Correct Answer
A
Rationale:
Lisinopril inhibits the conversion of angiotensin I to angiotensin II, reducing vasoconstriction and blood
pressure.
Question 4
A patient with a myocardial infarction (MI) develops a ventricular dysrhythmia. What is the
primary goal of treatment with lidocaine?
A. Increasing the force of cardiac contractions
B. Slowing the heart rate
C. Converting the dysrhythmia to a normal sinus rhythm
D. Reducing the risk of reinfarction
Correct Answer
C
Rationale:
Lidocaine is used to convert ventricular dysrhythmias to a normal sinus rhythm.
Page 3
, Question 5
A patient with heart failure has a left ventricular ejection fraction (LVEF) of 20%. What is
the primary classification of heart failure in this patient?
A. HFpEF
B. HFrEF
C. HFmrEF
D. HFpEF with preserved LVEF
Correct Answer
B
Rationale:
HFrEF (Heart Failure with Reduced Ejection Fraction) is characterized by an LVEF ≤ 40%.
Question 6
The primary pathophysiological mechanism of heart failure is the inability of the heart to
relax between contractions, resulting in a decrease in cardiac output. Which of the
following is a consequence of this mechanism?
A. Increased left ventricular contractility
B. Decreased myocardial oxygen demand
C. Increased systemic vascular resistance
D. Reduced left ventricular compliance
Correct Answer
Reduced left ventricular compliance
Rationale:
Reduced left ventricular compliance is a direct consequence of the heart's inability to relax between
contractions.
Page 4
