Compared with a pocket mask, a bag-mask device delivers:

Compared with a pocket mask, a bag-mask device delivers:

• A. Lower oxygen concentration
• B. No oxygen delivery
• C. Higher oxygen concentration
• D. Same oxygen concentration

Answer: (C)

A bag-mask device delivers higher oxygen concentration because it includes a reservoir bag and can be connected to an oxygen source with high flow. When you squeeze the bag, you push a gas mixture rich in oxygen into the lungs, and the reservoir helps deliver more oxygen per breath, often approaching near 100% FiO2 depending on the setup and seal. A pocket mask, on the other hand, typically lacks a substantial reservoir, so the inhaled gas mixes with room air during each breath, resulting in a lower FiO2. So, compared with a pocket mask, the bag-mask device provides a greater concentration of oxygen to the patient.

A bag-mask device delivers higher oxygen concentration because it includes a reservoir bag and can be connected to an oxygen source with high flow. When you squeeze the bag, you push a gas mixture rich in oxygen into the lungs, and the reservoir helps deliver more oxygen per breath, often approaching near 100% FiO2 depending on the setup and seal. A pocket mask, on the other hand, typically lacks a substantial reservoir, so the inhaled gas mixes with room air during each breath, resulting in a lower FiO2. So, compared with a pocket mask, the bag-mask device provides a greater concentration of oxygen to the patient.