Mouth-to-mouth rescue breathing is a critical component of cardiopulmonary resuscitation (CPR). It involves delivering breaths to a person who has stopped breathing to provide oxygen to their lungs and help them regain consciousness. The goal of mouth-to-mouth rescue breathing is to restore oxygenation and circulation, which can be achieved by providing breaths at the correct rate and volume.
When giving a rescue breath to an infant, ensure that each breath should be delivered for over 1 second only. The volume of each breath should be sufficient to see the chest wall rise. The correct ventilation rate for infants with a pulse but not breathing is 1 breath every 6 seconds.
During rescue breathing, the unconscious person has to open their mouth to ensure that the air you breathe will reach the lungs. You will see the chest rise if the rescue breathing is effective. If not, you need to open the airway again using a head tilt/chin lift and give another rescue breath.
Yes, you need to close the entire nose and make a proper seal with your mouth when giving rescue breath to the adult victim. This is to prevent the flow of air you provide from escaping.