NREMT Paramedic

Category - Airway

The correct percentage of oxygen in atmospheric air is:
  1. 15%
  2. 21%
  3. 25%
  4. 50%
Explanation
Answer: B - The atmospheric air contains 21% oxygen. When a patient becomes hypoxic the EMT-P must supply supplemental oxygen to increase the amount of oxygen the patient is exchanging. It is important to keep respiratory problems and social history in mind when treating patients.
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