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The amount of oxygen available to the patient in mouth-to-mouth is around 16%. If this is done through a pocket mask with an oxygen flow, this increases to 40% oxygen. If either a bag valve mask or a mechanical ventilator is used with an oxygen supply, this rises to 99% oxygen. The greater the oxygen concentration, the more efficient the ...
Cardiopulmonary resuscitation (CPR) is an emergency procedure consisting of chest compressions often combined with artificial ventilation, or mouth to mouth in an effort to manually preserve intact brain function until further measures are taken to restore spontaneous blood circulation and breathing in a person who is in cardiac arrest.
The respiratory center of the brain is located in the pons and medulla and is primarily driven by elevated carbon dioxide levels in the blood (hypercapnia) with decreased oxygen levels serving as a less potent stimulus. [9] Central nervous system disorders, such as stroke and tumors, may cause hypoventilation. Drugs may decrease respiratory ...
Current evidence suggests that for out-of-hospital cardiac arrest, basic airway interventions (head-tilt–chin-lift maneuvers, bag-valve-masking or mouth-to-mouth ventilations, nasopharyngeal and/or oropharyngeal airways) resulted in greater short-term and long-term survival, as well as improved neurological outcomes in comparison to advanced ...
Oxygen supply system that provides pure oxygen on demand at a pressure slightly above ambient, as is necessary for cabin altitudes above 34,000 feet. A type of positive pressure breathing system used with a pressure suit. [2] pressure regulated volume control Mechanical ventilation which is a combination of pressure and volume controlled ...
Image 23 from the 1903 book by William F. Barry, M.D., The Hygiene of the Schoolroom. Barry describes this child as having "the typical face of a mouth-breather". In the early 20th century, "mouth-breather" was a technical term used by doctors to describe children who were breathing through their mouths due to an underlying medical condition.
Although the use of mouth-to-mouth ventilation as a resuscitative technique dates back virtually to the beginning of recorded history, [1] it seems to have fallen out of favor in the late 19th century with the widespread adoption of Silvester's method (the chest-pressure and arm-lift technique). Silvester's method remained the most widespread ...
It involved placing the patient on his stomach and applying pressure to the lower part of the ribs. It was the standard method of artificial respiration taught in Red Cross and similar first aid manuals for decades, [21] until mouth-to-mouth resuscitation became the preferred technique in mid-century. [22]