How do you check to see that an Ambu bag/artificial resusctation bag is functioning?
There are three quick checks to make sure an bag valve mask is working properly:
1.Squeeze to make sure the BVM self inflates, which indicates the valves are working correctly.
2.Block the patient connection (where the device would enter the patient’s mouth) and attempt to squeeze the bag. The pop-off valve should open.
3.Remove the reservoir and block the patient intake valve. The bag should not inflate.
Are there different types of Ambu bags/manual resuscitator?
Yes, there are different sizes of Ambu bags, different materials used for disposable vs. reusable bags, and different styles depending on the manufacturer.
Sizes: Adult, child, and infant.
Materials: The Ambu disposable bag is made of SEBS (Styrene Ethylene Butylene Styrene), a plastic considered safer than PVC. The reusable version is made of silicone rubber, 100% latex free.
Structure: The Ambu bag was first produced by the Ambu company. The name “Ambu” then became generalized. The true Ambu bag has developed and changed with time as new technology and materials have made improvements possible. There are now various manufacturers, so Ambu bags (BVMs), while all similar in structure, take varied forms.
Is it Ok to use a BVM connected to a reservoir, WITHOUT any connection to a gas source?
Will we than achieve the 21% oxygen?
In an emergency where a patient is not breathing and its a BVM or no breaths, using a BVM without an oxygen source would be equivalent to mouth to mouth or mouth to mask with a higher concentration of O2 and less CO2 as the device is using room air as opposed to human exhalation.
As far as if it is ok that would be local protocol dependent. As far as the O2 concentration using room air it could be up to 21% oxygen that is delivered but the BVM without being connected to Oxygen will only deliver everything that is in room air.
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