Practice Question
Best device to deliver exact FiOs of 24% in a COPD client?
Answer Choices:
Correct Answer:
Venturi mask with 24% adapter
Rationale:
🌬️ The Venturi mask is specifically designed to deliver a precise and fixed FiO₂, making it the safest choice for COPD patients. It mixes oxygen with room air in controlled, calibrated proportions.
🌬️ COPD patients rely on hypoxic drive, so giving too much oxygen can suppress breathing. The Venturi mask prevents accidental oxygen overdose.
🌬️ Alternative oxygen devices deliver variable FiO₂ that fluctuates with breathing pattern and flow rate. This makes them unreliable for patients sensitive to oxygen levels.
🌬️ Using the 24% adapter ensures the patient receives exactly the amount of oxygen needed to maintain safe saturations without causing CO₂ retention.
❌ Incorrect Answers
❌ Simple mask → 😶 FiO₂ varies widely depending on breathing and flow.
❌ Non-rebreather mask → 😵 Delivers very high oxygen; unsafe for COPD.
❌ Nasal cannula at 1 L/min → 🫁 Cannot guarantee exact 24% oxygen.
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This question is from MIDTERM EXAM FALL 2025 which contains 97 questions.
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Question Details
- Category: RN Nursing Exam(s)
- Subcategory: General Exams
- Domain: Adult Health Exams 🏯
- Answer Choices: 4