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15 Cards in this Set
- Front
- Back
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Hypoxia |
Means reduced oxygen Can be caused by an insufficient supply of oxygen Inadequate transportation of oxygen Inability of the body tissues to use oxygen |
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Hypoxic hypoxia |
A result of insufficient oxygen avalable to the lungs Reduction of partial pressure at altitude is a common example |
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Hypemic hypoxia |
Occurs when the blood is not able to take up and transport sufficient oxygen to the cells in the body |
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Stagnant hypoxia |
Stagnant hypoxia Means not flowing, results when the oxygen rich blood in the lungs isn't moving to the tissues that need it |
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Histotoxic hypoxia |
The inability of the cells to effectively use oxygen The oxygen is being transported to the cells, but they are unable to use it |
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Symptoms of hypoxia |
Euphoria Vision narrows Cyanosis Headache Decreased reaction time Impaired judgment Visual impairment Drowsiness Lightheaded or dizzy feeling Numbness Tingling in fingers and toes The pilot will have a false sense of security |
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Hyperventilation |
Occurs when an individual is experiencing emotional stress, fright, or pain. The result is an excessive loss of carbon dioxide from the body, which can lead to unconscious while the respiratory system attempts to override your actions Same symptoms as hypoxic |
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Middle ear and sinus |
There is a difference between the pressure of the air outside the body and the air inside the middle ear and nasal sinus Pain is the primary indicator Temp reduction in hearing sensitivity During a climb, if the air pressure in the Eustachian tube cannot equalize, while the pressure on the outside of the eardrum decreases the eardrum will bulge outward resulting in discomfort |
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Sinus problems |
Air pressure in the sinuses equalizes with the pressure in the cockpit through small openings that connect the sinuses to the nasal passages As the difference in pressure between the sinus and the cockpit increases, congestion may plug the sinus openings
Symptoms are pain over the sinus area, upper teeth ace, and bloody nose Slowing the descent rate will reduce the pain |
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Spatial disorientation |
Orientation is the awareness of the position of the aircraft and of oneself in relation to a specific reference point Disorntation of a lack of orientation Spatial disorientation refers to the lack of orientation with regards to the position attitude, or movement of the airplane in space Visual, postural, vestibular system |
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Flight into IMC |
When visual cues are taken away, the eyes cannot correct for the false sensations and pilot becomes disoriented |
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Vestibular system |
The part of the inner ear the pilot uses to sense movement and determine orientation in the surrounding environment |
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Motion sickness |
Caused by the brain receiving conflicting messages about the state of the body, anxiety and stress also affect motion sickness Symptoms include nausea, dizziness, paleness, vomiting, sweating |
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Carbon monoxide poisoning |
Aircraft heater vents and defrost vents provide a co passageway into the cabin, if there is a leak in the exhaust CO attaches itself to the hemoglobin in the blood It dose this 200x easier than oxygen CO prevents the hemoglobin from carrying oxygen the cells resulting in hypemic hypoxia Symptoms Headache Blurred vision Dizziness Drowsiness Loss of muscle power |
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Fatigue and stress |
Skill fatigue: A special type of acute fatigue affecting a person's piloting skill Timing disruption: Appearing to preform a task as usual, but the timing of each component is slightly off Caused by mild hypoxia, physical stress, psychological stress, depletion of enter your from psychological stress |
