Mouth-to-mouth resuscitation

Sometimes a person cannot breathe on their own. You can help them by blowing air into their mouth. This is called rescue breathing. It helps get air into their lungs.

This can be done with a small mask. The mask helps keep the helper safe. It lets air go to the person. It also keeps germs away from you. This is a very important skill to know. It can help save a life.

Sometimes a person cannot breathe on their own. Mouth-to-mouth resuscitation can help them. This is a way to give air to someone. A rescuer presses their mouth against the person's mouth. Then, the rescuer blows air into the person's lungs. This is also called rescue breathing.

When you breathe out, your air still has oxygen. This is the gas our bodies need to live. Most of the oxygen stays in your breath. This means there is enough for the other person.

Rescuers often use a tool to stay safe. They might use a pocket mask. A pocket mask is a small tool that covers the face. It helps stop the spread of germs. Some masks have a special valve. This valve lets air go to the person. It does not let fluids go back to you.

You can also use a bag called an Ambu bag. This tool helps push air into the lungs. Some tools can even add extra oxygen. This makes the breathing help work even better. This skill is a big part of CPR. CPR is a set of steps to help a person's heart and breathing.

Mouth-to-mouth resuscitation is a way to help someone breathe. It is a type of artificial ventilation. This means a rescuer helps a person's lungs move air. This is very important if a person is not breathing well. It can be used alone for near-drowning or drug overdoses. It is also a main part of CPR. CPR is a set of steps used to help a person's heart and breathing.

To do this, a rescuer must make a seal. They press their mouth against the person's mouth. Then, they blow air into the person's lungs. This is called insufflation, which means forcing air into the lungs. Sometimes, a rescuer might blow into a person's nose instead. This happens if there is an injury to the face. You might also use a mouth-to-face method for infants or animals.

People have worked to save lives for a long time. In 1773, an English doctor named William Hawes spoke about artificial respiration. He wanted to help people who had almost drowned. Another doctor named Thomas Cogan joined him in this work. In 1774, they started the Royal Humane Society. This group helped teach first aid to others. By the end of the 1800s, they had 280 depots in the UK.

One of the first rescue houses was in Hyde Park. It was built in 1794 on land from George III. This place was chosen because many people swam in the Serpentine. In the winter, people went there to ice-skate. The society even gave medals to people who were very brave. They helped people trapped in mines or even in sewers. They wanted to help anyone in danger of losing their breath.

When you breathe out, your air still has oxygen. Normal air has about 21% oxygen. When you exhale, your breath has about 17% oxygen left. This is enough to help the other person's blood. Rescuers often use a pocket mask to stay safe from germs. These masks have a one-way valve. The valve lets air go to the patient but keeps fluids away from the rescuer. Some tools can even add extra oxygen to help more.

Mouth-to-mouth resuscitation is a specific form of artificial ventilation. This process involves assisting or stimulating respiration in a person who is not breathing. A rescuer performs this by pressing their mouth against the victim's mouth to blow air into their lungs. This method is often used during cardiopulmonary resuscitation (CPR) to achieve internal respiration. It is also used as a standalone measure for situations like near-drowning or opiate overdoses. While laypeople are often advised to perform full CPR, mouth-to-mouth alone is usually limited to health professionals in modern protocols.

The core mechanism of this procedure is called insufflation. Insufflation is the act of mechanically forcing air into a patient's respiratory system. To be successful, the rescuer must first ensure good airway management. This means the path for air to enter the lungs must be clear. Once the airway is ready, the rescuer creates a seal. They then blow air to achieve pulmonary ventilation. This is the process of moving air into and out of the lungs to allow for gas exchange.

There are several different methods used to perform insufflation depending on the situation. The most common is mouth-to-mouth, where a seal is made between the mouths of the rescuer and the patient. If a patient has maxillofacial injuries, or if there is vomit in the mouth, a rescuer might use mouth-to-nose resuscitation instead. For infants under age two or for animals, a mouth-to-face method is often more effective for creating a seal. Modern training also emphasizes the use of mouth-to-mask techniques. This involves using a barrier to protect the rescuer from cross infection.

To protect against the spread of disease, rescuers often use personal protective equipment. This includes rigid pocket masks or foldable face shields. These tools often feature a one-way filter valve. This valve allows air to pass from the rescuer to the patient but prevents fluids like blood or vomit from reaching the rescuer. Some masks even include a filter to reduce the chance of transmitting diseases from the rescuer to the patient. If a mask is multi-use, it must be cleaned and autoclaved after use.

The history of these life-saving techniques dates back to the late 18th century. In 1773, an English physician named William Hawes began promoting artificial respiration. He wanted to help people who appeared to have drowned. He even paid rewards from his own pocket to anyone who brought him a rescued body. In 1774, Hawes and another physician, Thomas Cogan, founded the Royal Humane Society. This group campaigned for first aid and resuscitation. By the end of the 19th century, the society had over 280 depots across the UK.

One notable location for these rescue efforts was the Receiving House in Hyde Park. Built in 1794 on land granted by George III, it sat on the north bank of the Serpentine. This location was chosen because tens of thousands of people swam in the Serpentine during summer. In the winter, people used the water for ice-skating. The society provided boats for swimmers and ice-men for skaters. They even recognized bravery in people rescued from foul gas in mines, wells, or sewers.

It is surprising to learn how much oxygen is actually available in a rescuer's breath. Normal atmospheric air contains about 21% oxygen. When a person exhales, the air they breathe out still contains about 17% oxygen. This is because the human body only uses about 19% of the oxygen it inhales. This leaves over 80% of the original oxygen available in the exhaled breath. This residual oxygen is more than enough to enter the blood of the patient.

Medical professionals can increase the efficiency of this process using oxygen therapy. While mouth-to-mouth provides about 16% to 17% oxygen, using a pocket mask with an oxygen flow can increase that to 40% or 50%. If a rescuer uses a bag valve mask or a mechanical ventilator with an oxygen supply, the concentration can reach 99%. A higher concentration of oxygen makes the gaseous exchange in the lungs much more efficient.