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If we are not willing or not able to do rescue breaths on someone, we can use the Bag Valve Mask. So what we are going to do now is have a look at how it works and how to use the bag valve mask on a non-breathing patient.
"A good way of getting ventilations into a patient is using the BVM, the bag valve mask. Can you just go through the components of the BVM first. "
"Ok, this is your Bag Valve Mask, you would connect it to oxygen and the oxygen would filter into the system and go into the reservoir bag here. So as you deliver a breath to the patient, you are giving them as much oxygen as you can possibly manage. You have a compressible bag here that will provide oxygen to the patient. As you breathe, you give the breath and as you give out, you can hear the noise it is giving as it is sucking the oxygen into the patient. So that you actually breathe to the patient, the valve opens up and delivers the oxygen. You place it onto the patient's face, ensuring that you have a very good seal across - over the nose and onto the chin, making sure that the seal is just to the base of the chin so that you have a good seal.
You need to open up the airway completely so you would need to open the head with a head tilt chin lift or open it up fully to extend the airway. You need to ensure that you are pushing down on the face mask to achieve the seal, but at the same time not squashing everything too tight. So with these three fingers, you will pull the airway - the chin up to give you the airway opening, and then with this hand, you can produce the breath. You can probably notice that there is a gap around the face mask, probably along the base or along this side as I am only using one hand - and I am using the other hand to provide the ventilation. So we recommend a two-man technique so that I am able to hold it completely onto the face, open up the airway, and then somebody else is able to compress the bag to deliver the breath. That is why we do a two-man technique."

"Ok, so when you squeeze the bag you always make sure that you only use one hand. If you use two hands, what you will do is cause trauma to the lungs, and you damage the lungs and ventilation becomes much more difficult in the future."