Practice Exam 2026 Walden
University–Style Review | Version 2 |
100 Fully Rationalized Questions
QUESTIONS 1–100 (ALL NEW)
1. A nurse is assessing a patient with emphysema. Which finding is most
expected?
A. Productive cough
B. Barrel-shaped chest
C. Crackles at lung bases
D. Bradycardia
Answer: B
Rationale: Emphysema causes air trapping, leading to a barrel chest.
2. Which oxygen delivery device provides the highest oxygen
concentration?
A. Nasal cannula
B. Simple face mask
,C. Nonrebreather mask
D. Venturi mask
Answer: C
Rationale: A nonrebreather can deliver up to 90–100% oxygen.
3. A patient with pneumonia suddenly becomes restless and confused.
What is the nurse’s priority?
A. Obtain blood cultures
B. Apply supplemental oxygen
C. Administer antibiotics
D. Reposition the patient
Answer: B
Rationale: Confusion indicates hypoxia; oxygen is the priority.
4. Which assessment best indicates airway obstruction?
A. Increased respiratory rate
B. Wheezing
C. Decreased blood pressure
,D. Cyanosis
Answer: B
Rationale: Wheezing suggests narrowed airways.
5. A patient has a tracheostomy. Which nursing action prevents
infection?
A. Change ties daily
B. Use sterile technique during care
C. Remove inner cannula weekly
D. Keep cuff inflated at all times
Answer: B
6. Which sign indicates respiratory fatigue?
A. Tachypnea
B. Use of accessory muscles
C. Decreased respiratory rate
D. Nasal flaring
, Answer: C
Rationale: A slowing respiratory rate after distress signals fatigue.
7. A patient is prescribed incentive spirometry. What is the primary
purpose?
A. Reduce coughing
B. Prevent atelectasis
C. Increase oxygen demand
D. Remove secretions
Answer: B
8. Which ABG result indicates metabolic alkalosis?
A. pH 7.48, HCO₃⁻ 30
B. pH 7.30, PaCO₂ 55
C. pH 7.25, HCO₃⁻ 18
D. pH 7.35, PaCO₂ 40
Answer: A