NUR 155
FOUNDATIONS OF NURSING
NUR 155 Exam 4: Foundations of Nursing Comprehensive Study G
UPDATE
50 Multiple-Choice Questions
Complete Answers with Detailed Rationales
Aligned with Nursing Foundations & Med-Surg Standards
Galen College of Nursing
For academic study and exam review • Verify with current course materials
,NUR 155 Exam 4 Foundations of Nursing Comprehensive Study Guide D | 2026/2027
How to Use This Review
This comprehensive exam review contains high-yield multiple-choice questions. Each item includes the correct answer
and an expanded rationale explaining the underlying principle, why the correct option is preferred, and why distractors are
incorrect. Study tip: Attempt each question before reading the answer, then carefully review the rationale.
Page 2
, NUR 155 Exam 4 Foundations of Nursing Comprehensive Study Guide D | 2026/2027
Question 1
A nurse is assessing a client with chronic obstructive pulmonary disease (COPD). Which clinical finding indicates the
presence of chronic hypoxia?
A. Peripheral edema in the lower extremities
B. Clubbing of the fingers and toes
C. Occasional productive cough
D. Oxygen saturation of 92% on room air
Answer: B
Rationale
Clubbing is a result of chronic low oxygen levels in the blood, which leads to changes in the nail bed. Edema is more related to
heart failure, while 92% SaO2 can be normal for COPD. Understanding this concept is essential for safe clinical
decision-making. Incorrect choices often reflect common misconceptions. Always link assessment findings to the primary
process and anticipated complications.
Question 2
Which oxygen delivery device should the nurse choose to provide the most precise concentration of oxygen for a client
with hypercapnic respiratory failure?
A. Nasal cannula
B. Simple face mask
C. Non-rebreather mask
D. Venturi mask
Answer: D
Rationale
The Venturi mask is the most accurate device for delivering a specific oxygen concentration (FiO2), which is critical for clients
who retain CO2. Understanding this concept is essential for safe clinical decision-making. Incorrect choices often reflect
common misconceptions. Always link assessment findings to the primary process and anticipated complications.
Question 3
When suctioning a client’s tracheostomy, what is the maximum amount of time the nurse should apply suction during
each pass?
A. 5 seconds
B. 10 to 15 seconds
C. 20 to 30 seconds
D. 1 minute
Answer: B
Rationale
Suctioning should be limited to 10-15 seconds to prevent hypoxia and vagal stimulation, which can cause bradycardia.
Understanding this concept is essential for safe clinical decision-making. Incorrect choices often reflect common
misconceptions. Always link assessment findings to the primary process and anticipated complications.
Page 3
FOUNDATIONS OF NURSING
NUR 155 Exam 4: Foundations of Nursing Comprehensive Study G
UPDATE
50 Multiple-Choice Questions
Complete Answers with Detailed Rationales
Aligned with Nursing Foundations & Med-Surg Standards
Galen College of Nursing
For academic study and exam review • Verify with current course materials
,NUR 155 Exam 4 Foundations of Nursing Comprehensive Study Guide D | 2026/2027
How to Use This Review
This comprehensive exam review contains high-yield multiple-choice questions. Each item includes the correct answer
and an expanded rationale explaining the underlying principle, why the correct option is preferred, and why distractors are
incorrect. Study tip: Attempt each question before reading the answer, then carefully review the rationale.
Page 2
, NUR 155 Exam 4 Foundations of Nursing Comprehensive Study Guide D | 2026/2027
Question 1
A nurse is assessing a client with chronic obstructive pulmonary disease (COPD). Which clinical finding indicates the
presence of chronic hypoxia?
A. Peripheral edema in the lower extremities
B. Clubbing of the fingers and toes
C. Occasional productive cough
D. Oxygen saturation of 92% on room air
Answer: B
Rationale
Clubbing is a result of chronic low oxygen levels in the blood, which leads to changes in the nail bed. Edema is more related to
heart failure, while 92% SaO2 can be normal for COPD. Understanding this concept is essential for safe clinical
decision-making. Incorrect choices often reflect common misconceptions. Always link assessment findings to the primary
process and anticipated complications.
Question 2
Which oxygen delivery device should the nurse choose to provide the most precise concentration of oxygen for a client
with hypercapnic respiratory failure?
A. Nasal cannula
B. Simple face mask
C. Non-rebreather mask
D. Venturi mask
Answer: D
Rationale
The Venturi mask is the most accurate device for delivering a specific oxygen concentration (FiO2), which is critical for clients
who retain CO2. Understanding this concept is essential for safe clinical decision-making. Incorrect choices often reflect
common misconceptions. Always link assessment findings to the primary process and anticipated complications.
Question 3
When suctioning a client’s tracheostomy, what is the maximum amount of time the nurse should apply suction during
each pass?
A. 5 seconds
B. 10 to 15 seconds
C. 20 to 30 seconds
D. 1 minute
Answer: B
Rationale
Suctioning should be limited to 10-15 seconds to prevent hypoxia and vagal stimulation, which can cause bradycardia.
Understanding this concept is essential for safe clinical decision-making. Incorrect choices often reflect common
misconceptions. Always link assessment findings to the primary process and anticipated complications.
Page 3
