Mouth-to-mouth resuscitaton (or rescue breathing) is when a person breathes into the mouth and/or nose of an unconscious patient. This will allow the lungs to refill with oxygen. When the heart is compressed (by doing CPR), rescue breathing will help to ensure that there is enough oxygen in the body, so that all the organs and tissues will be supplied with enough oxygen to sustain life.
Cardio Pulmonrary Resusciation (CPR) is a method of returning circulation to a body whose heart is not functioning. Although CPR is now sometimes done without rescue breathing and relies on the lung's vacuum process during chest compressions to partially fill the lungs with air, chest compressions remain necessary to spread the oxygenated blood to body tissues and cells.
Rescue breaths are manually delivered ventilations when someone cannot breathe on their own. It's usually done in coordination with CPR, but it all depends on the situation. Rescue breaths can be given either mouth to mouth, mouth to mask, or mouth to BVM. etc.
A breathing barrier device should be used if providing rescue breathing to minimize the risk of disease transmission.
For an Adult, if there are no signs of life, immediately go to CPR. For an Infant or Child, if there is no breathing, but a pulse start rescue breathing; 1 breath every 3 seconds.
During CPR, the chest compressions are applied; during rescue breathing there are no chest compressions used.
If your are not trained in CPR or rescue breathing then you should not be giving rescue breaths as you can injure the victim. The lay rescuer should only provide compressions at a rate of 100 compressions per minute. AHA provides courses to learn CPR/ rescue breathing which are very beneficial.
Agonal breathing will not support life; rescue breathing (or CPR if no pulse) is required.
When a person has stopped breathing and can not breathe on his own, rescue breathing (or Mouth-To-Mouth Resuscitation) is given to try and saved the persons live (in addition to CPR and/or defibrilation).
Causes of collapse for which rescue breathing may be needed are anaphylactic shock, heart attack, and poisoning.
Check to see if they have a pulse, or are breathing. If they have both, no CPR is needed. If they have a pulse but aren't breathing, you can perform rescue breathing only without chest compressions. If they do not have a pulse and aren't breathing, you perform rescue breathing and chest compressions.
Rescue breathing is life saving procedure. It does not transmit any serious disease. The percentage is very low and that is not important. You must go for the rescue breathing so that the other person will help you in emergency.
If there is a pulse, then perform rescue breathing only.
Check for signs of life when performing rescue breathing on a child every 2 minutes.
You should check for signs of life every two minutes while performing rescue breathing on an adult or child