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A technique used to resuscitate a person who has stopped breathing, in which the rescuer forces air into the victim's lungs at intervals of several seconds, usually by exhaling into the victim's mouth or nose or into a mask fitted over the victim's mouth.
In early 2008, the American Heart Association changed its guidelines to include hands-only CPR, a new version using chest compressions only. Hands-only CPR is intended for untrained rescuers and only for witnessed cardiac arrest.
rescue breathingEmergency medicine Any of a number of life-saving maneuvers in which a rescuer–R1 inflates the rescuee's–R2 lungs by breathing into the R2's airway access 'port'. See ABCs–of CPR, Head-tilt/Chin-lift maneuver.
Rescue breathing types
Mouth-to-mouth Airway is opened by the head-tilt/jaw-lift maneuver, nose is pinched by R1 who takes 2 deep breaths, seals his/her lips around R2's mouth and gives 2 full breaths–1 to 1.5 seconds/breath, allows good chest expansion, average volume 800 mL
Mouth-to-nose Used when there is major trauma to the face, trismus, or a tight mouth seal cannot be formed; airway is opened by the head-tilt/jaw-lift maneuver, mouth is closed by R1 who takes 2 deep breaths, seals his/her lips around R2's nose and gives 2 full breaths as above
Mouth-to-stoma Used in Pts who have undergone laryngectomy; R1 who takes 2 deep breaths, seals his/her lips around R2's stoma and breathes as above