Aero-medical Flashcards
Hyperventilation (AIM 8-1-3)
lack of carbon dioxide in body (rapid breathing) symptoms light headedness, suffocation, drowsiness, tingling in extemities
Hypoxia (AIM 8-1-2)
oxygen deficiency in body, Effects peripheral vision grays out (tunnel vision), blue coloration (cyanosis), headache, drowsiness, dizziness
types of Hypoxia (Pilots handbook of Aeuronitcal knowledge 17-4)
Hypoxic- insufficient oxygen to body as a whole (high altitude)
Hypemic- oxygen deficiency in blood (CO poisoning, loss of blood)
Stagnant- blood not moving ( High G’s)
Hysotoxic- cells inability to use oxygen (alcohol drugs)
Hypoxia stages
Indifferent
Compensatory
Disturbance
Critical
Spatial disorientation ( PHAK 17-6)
lack of orientation with regard to the position, attitude, or movement of the airplane in space
body systems for orientation
Vestibular- organs inner ear sense position
Eyes- sense position based on what we see
Kinesthetic- sensory organs in muscles and joints
spacial disorientation illusions (PHAK 17-6)
Leans-sudden return to level flight from gradual and prolonged turn that pilot was unaware of
Coriolis illusion- moving head makes you think aircraft moving
False Horizon- pilot may try to align aircraft up with false horizon
Autokinesis- pilot will try and align up with moving light
Carbon Monoxide Poisoning (PHAK 17-12)
CO replaces oxygen in blood. symptoms Headache, Blurred vision, dizziness, drowsiness, and/or loss of muscle failure. 48 hours to fully recover
Types of stress (PHAK 17-12)
Acute- immediate threat perceived as danger triggers “fight or flight”
chronic- intolerable burden, unrelenting psychological pressure
Fatigue (PHAK 17-13
Acute- strenuous effort, excitement, or lack of sleep 8 hours sleep cures it
chronic- psychologic roots or underlying disease
Ear and sinus
Eustachian tube pharynx to middle ear to equalize pressure. sinuses can block the tube.
