What is Hypoxia? - ✅✅The result of reduced oxygen or inadequate oxygen transportation.
Types of Hypoxia - ✅✅Hypoxic
Hypemic
Histotoxic
Stagnant
Hypoxic Hypoxia - ✅✅Hypoxic Hypoxia is the result of an insufficient supply of oxygen to the body as
a whole. For pilots, this is caused due to a low partial pressure at higher altitudes (normally higher that
12,000ft MSL) resulting in decreased molecules to pass through membranes in the respiratory system.
Dry Ice can cause this. Releases CO2
Hypemic Hypoxia - ✅✅Results from the bloods inability to transport oxygen through the body. Can be
caused by Carbon monoxide poisoning
(200x more attracted to hemoglobin), reduced blood volume (blood donation) , or anemia.
Histotoxic Hypoxia - ✅✅A result of blood cells inability to effectively use oxygen, even though there is
enough oxygen being transported. Can be caused by Alcohol and other drugs. Every ounce can be
equated to approximately 2000 ft in Physiological altitude.
Stagnant Hypoxia - ✅✅Caused by the lack of oxygen rich blood flowing from the lungs to the tissue
that needs it. In flight, stagnant hypoxia can result from excessive acceleration of gravity (Pulling to
many G's), shock, constricted arteries, or the heart failing to pump.
Symptoms of Hypoxia - ✅✅Everyone experiences different symptoms of hypoxia.
At the onset of hypoxia, one typically experiences euphoria and a carefree feeling.
, Some of the typical symptoms are as follows
I. Cyanosis
II. Headache
III. Decreased reaction time
IV. Impaired judgement
V. Euphoria
VI. Visual impairment
VII. Drowsiness
VIII. Lightheadedness
IX. Dizziness
X. Tingling in fingers and toes
XI. Numbness
What is useful consciousness? - ✅✅The maximum time available to make rational, lifesaving
decisions and carry them out at a given altitude without supplemental oxygen.
What can you do to correct Hypoxia? - ✅✅Get to a lower altitude
I. Emergency decent
Use supplemental oxygen
What causes Hyperventilation? - ✅✅Results from insufficient carbon dioxide in the blood as a result
for excessive rate and depth of breath
What are symptoms of hyperventilation? - ✅✅I. Visual impairment
II. Unconsciousness
III. lightheaded or dizziness
IV. Tingling sensation
V. Hot and cold sensations