According to Erste-Hilfe Kurs the purpose of artificial respiration, as well as normal natural respiration, is to provide gas exchange in the body, i.e. saturation of the victim’s blood with oxygen and removal of carbon dioxide from the blood.
Gas exchange occurs in the lungs, the air entering them fills many lung bubbles, the so-called alveoli, to the walls of which blood is saturated with carbon dioxide. The walls of the alveoli are very thin and their total area in humans reaches an average of 90 m2. Gas exchange takes place through these walls, i.e. oxygen goes from air into blood and carbon dioxide from the blood into the air.
Erste Hilfe und sehtest says that the blood saturated with oxygen is sent by the heart to all organs, tissues, and cells in which normal oxidative processes, i.e. normal vital functions, continue.
Preparing for CPR
Erste Hilfe fortbildung münchen teaches that before beginning artificial respiration, the following operations must be performed quickly:
- Free the victim from clothes constraining breathing – unbutton the collar, untie the tie, unbutton the waistband of pants, etc.,
- Lie the victim on his/her back on a horizontal surface – table or floor,
- Tilt the victim’s head as far back as possible by placing the palm of one hand under the back of the head and pressing the other hand on the forehead until the chin is in line with the neck. In this head position, the tongue moves away from the entrance to the larynx, thereby allowing free passage of air to the lungs, and the mouth usually opens. To keep the achieved position of the head under the shoulder blades should be placed a roller from rolled-up clothes.