North Carolina EMT State Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare for the North Carolina EMT State Exam with interactive quizzes and comprehensive explanations. Master your skills and gain confidence by reviewing key topics before test day!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

What flow rate is recommended when using mouth to mask ventilation?

5 l/m
10 l/m
12 l/m
15 l/m

The correct answer is: 15 l/m

The recommended flow rate for mouth to mask ventilation is 15 liters per minute. This flow rate is set to ensure adequate delivery of oxygen to the patient's lungs during artificial ventilation. At 15 liters per minute, the diffusion of oxygen through the mask is optimized, allowing for a higher concentration of oxygen to reach the patient, which is particularly important in emergency situations where rapid and effective ventilation can significantly impact patient outcomes. Using a flow rate lower than this might not provide sufficient oxygen delivery, which can result in inadequate ventilation, especially for patients who require more oxygen support due to respiratory distress or an obstructed airway. The 15 l/m rate is considered a balance that facilitates a good seal around the mask while allowing for adequate exhalation without overwhelming the system, maintaining effective ventilation.