Is using an Ambu bag or BVM on someone who doesn't need it dangerous?

Question:

Keep in mind that the 'victim' would have let out as much air as possible before.

Answers:
It probably won't hurt them, unless you try to force air in past the lung's volume, and then you might cause trauma to the lungs.
However, it's really difficult to ventilate someone who is conscious and breathing well. We tried it in EMT-Basic school, and it's a bit of a challenge. There are some situations where it is necessary to assist someone's respirations with a BVM when they are still conscious and breathing, but that isn't very often.
Hope this helps!

<>A conscious person would fight the ventilatory effort. An unconscious, breathing person would breath at their intrinsic rate which would counter the device. And a person who is not breathing would benefit.

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Is using an Ambu bag or BVM on someone who doesn't need it dangerous?

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