Practice Quiz

NREMT EMT

Category - Airway

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All of the descriptions below are true of the bag-valve mask (BVM) ventilation system except one. Which statement does not apply to the use of a bag-valve mask system?
  1. The BVM should be used after inserting either an oropharyngeal or nasopharyngeal airway of appropriate size.
  2. The BVM is a one-size-fits-all system once the appropriate oropharyngeal or nasopharyngeal airway system has been selected and inserted.
  3. The BVM delivers atmospheric air containing 21% oxygen as compared to air exhaled form a responder’s lungs, which contains 10-16% oxygen.
  4. The BVM can be attached to an oxygen supply to deliver oxygen concentration greater than atmospheric oxygen levels of 21%.
Explanation
Answer: B - The bag-valve mask system for ventilation has all of the benefits listed above, but it is not a one-size-fits-all system. There are BVMs sized for adults, children, and infants. Make sure you select the appropriate size for your patient. Administering ventilations that exceed the lung capacity of the patient can result in air entering the stomach and causing gastric distention.
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