Several people are hesitant to provide CPR simply because they are afraid to provide mouth to mouth resuscitation. It has been noted that most people fear the risk of acquiring a disease by providing respiration to the mouth of a victim on respiratory and cardiac arrest.
A new guideline has been issue in view of this set up. This is what we call, hands only CPR, or chest compression only CPR. Basically, when a person lungs and heart ceases to function, osygen is still present in the blood for a few minutes following the arrest of both lungs and heart. However, this oygen does not reach the brain since there is no circulation of the blood due to cardiac arrest.
Considering this situation, Hands only CPR may be effective. This is according to a publication as released by the American Heart Association. Bear in mind however that this new guideline is effective only on some circumstances.
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Clearly by providing CPR and with proper training a person may be able to save another persons life. It would be worthwhile to learn this things since you can never tell when an emergency may occur. What you will do will actually save the brain from imminent brain damage prior to the arrival of the emergency medical services.