NREMT Paramedic

Category - Airway

Utilizing a bag-valve mask without supplemental oxygen delivers ______ oxygen.
  1. 18%
  2. 21%
  3. 50%
  4. 95%
Explanation
Answer: B -While bagging patients with room-air the delivery of oxygen is at 21%. This will allow the patient to increase ventilatory effort but hooking the BVM to supplemental oxygen will increase the overall oxygen saturation of the patient.
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