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First Aid 2023

Respiração Boca a Boca

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Respiração Boca a Boca
Respiração Boca a Boca

Mouth-to-mouth resuscitation is performed to provide oxygen when a person suffers a cardiac arrest, becomes unconscious and is not breathing. After calling for help and calling 911, mouth-to-mouth resuscitation should be performed along with chest compressions as soon as possible to increase the chances of a victim surviving.

This type of breathing is not recommended in cases where someone with an unknown he alth history is being helped, since it is not possible to know if the person has a contagious disease, such as tuberculosis. In these situations, it is recommended to perform inflations with a pocket mask, but if this is not available, only chest compressions should be performed, from 100 to 120 per minute.

However, in specific cases, in people whose he alth history is known or in very close family members, mouth-to-mouth resuscitation should be performed according to the following steps:

  1. Place the victim on his back, as long as there is no suspicion of spinal injury;
  2. Open the airways, tilting the head and lifting the person's chin, using two fingers;
  3. Cover the victim's nostrils with your fingers, to prevent the offered air from escaping through the nose;
  4. Place your lips around the victim's mouth and breathe in through the nose normally;
  5. Blow air into the person's mouth for 1 second, making the chest rise;
  6. Do mouth-to-mouth resuscitation 2 times every 30 heart massages;
  7. Repeat this cycle until the person recovers or until the ambulance arrives.

If the victim starts breathing again, it is important to keep them under observation, leaving the airways always clear, as it may happen that the person stops breathing again, and it is necessary to restart the process.


How to do mouth-to-mouth resuscitation with a mask

There are first aid kits that contain disposable masks, which can be used for mouth-to-mouth resuscitation. These devices adapt to the victim's face and have a valve that prevents air from returning to the person performing mouth-to-mouth resuscitation.

In these situations, where the pocket mask is available, the steps to perform the breaths correctly are:

  1. Stand beside the victim;
  2. Place the victim on his back, if there is no suspicion of spinal injury;
  3. Fit the mask over the person's nose and mouth, keeping the narrowest part of the mask on the nose and the widest part over the chin;
  4. Perform the opening of the airways, by extending the victim's head and lifting the chin;
  5. Fasten the mask with both hands, so that no air comes out of the sides ;
  6. Blow gently through the nozzle of the mask, for about 1 second, observing the elevation of the victim's chest;
  7. Remove the mouth of the mask after 2 inflations, keeping the head extension ;
  8. Repeat 30 chest compressions,approximately 5 cm deep.

First aid cycles should be done until the person recovers or when the ambulance arrives. In addition, mouth-to-mouth resuscitation can be performed in cases of babies who are not breathing.

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