Aeromedical Factors


Objective: To create an understanding of medical conditions that may develop in flight, how to identify each condition and what can be done about the condition.

  1. Hypoxia – lack of Oxygen to the brain
    1. Cause – high altitude
    2. Symptoms – Euphoria, dizziness
    3. Treatment – use Oxygen, take deep breathes
      1. 12.5 – 14000 – 30 min
      2. 14.0 – all the time Crew
      3. 15.0 – all persons all the time
      4. Night – 5.0 (suggested)
  2. Hyperventilation – lack of CO2
    1. Cause – Stress
    2. Symptoms –rapid breathing, dizzy, tingly, blurred vision
    3. Treatment – take deep breathes, slow the breathing rate
  3. Middle Ear Pain – Outside P greater than inside causes the eardrum to bulge inward.
    1. Cause Unequal P, to fast a descent, decompression?
    2. Symptoms – severe pain in the ear
    3. Treatment – Introduce air P into the inner ear via the Eustachian tube by closing nose and blowing.
  4. Motion Sickness – car sick, air sick,
    1. Cause – due to continued stimulation of the inner ear (balance)
    2. Symptoms – sick to the stomach, want to throw up.
    3. Treatment –
      1. give them a distant point to focus on
      2. give them something to do.
      3. Relief Band
  5. Alcohol – Depressant, altitude compounds its effects
    1. Cause – drinking
    2. Symptoms – hangovers
    3. Treatment – don’t drink
      1. 8 hrs bottle to throttle
  6. Carbon Monoxide
    1. Cause – exhaust gas
    2. Symptoms – headache, dizziness, drowsy
    3. Treatment – turn off the heater
  7. Scuba Diving
    1. Cause – nitrogen in the blood
    2. Symptoms – The bends
    3. Treatment – wait to fly
      1. 12 hours if not a controlled Ascent and below 8000 feet
      2. 24 hours if controlled ascent or flying higher than 8000 feet.
  8. Fatigue/Stress
  9. Dehydration