EMT NOTES – Airway Management (Chapter 9)

  • One of the most important EMT skills/responsibilities

EMT NOTES - Airway Management (Chapter 9) 1

  • Lack of Oxygen:
    • brain tissue begins to die after 4-6 minutes without oxygen
    • more than 10 minutes without oxygen results in brain tissue death/damage and is irreversable
  • parietal pleura- line inside of thoracic cavity
  • mediastinum- space between lungs. ┬áContains esophagus and trachea.
  • phrenic nerve-innervates diaphragm
  • inhalation-active muscular part of breathing
  • dead space-part of tidal volume not reaching alveoli
  • alveolar ventilation-volume of gas that reaches alveoli (tidal volume-dead space)
  • patent=open
  • vital capacity-amount of air that can be expelled
  • hypoxia-lack of perfusion (cells/tissues not receiving adequate oxygen)
  • dyspnea-shortness of breath
  • surfactant-substance made of phospholipids and proteins that keeps alveoli expanded and allows breathing to be effortless.
  • diaphoretic-sweaty/moist skin

Breathing Patterns

EMT NOTES - Airway Management (Chapter 9) 2

  • intrapulmonary shunting- alveoli not functioning properly so blood bypasses them
  • apnea-lack of spontaneous breathing