Highlander Help

EMT NOTES

Airway Management (Chapter 9)



  • One of the most important EMT skills/responsibilities





  • 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.  Contains 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



  • intrapulmonary shunting- alveoli not functioning properly so blood bypasses them

  • apnea-lack of spontaneous breathing