North Carolina EMT State Practice Exam

What is the delivery rate of air when using a pocket mask?

1. 1 second

2. 2 seconds

3. 3 seconds

4. 4 seconds

The correct answer is: 2 seconds

The delivery rate of air when using a pocket mask is designed to be approximately 2 seconds per breath. This timing allows the EMT or responder to provide effective ventilations while ensuring that the patient receives sufficient air without causing overinflation of the lungs. By delivering air slowly over this duration, it helps create a more controlled and efficient ventilation process, effectively reducing the risk of aspiration and optimizing oxygenation. The other timing options, such as 1 second, 3 seconds, or 4 seconds, do not align with standard practice guidelines. A 1-second delivery would likely be too rapid, potentially leading to ineffective breaths. Conversely, 3 or 4 seconds would be too slow and may result in inadequate ventilation, delaying necessary oxygen delivery to a patient in respiratory distress. Hence, the 2-second delivery rate is the most effective and clinically appropriate choice when using a pocket mask.