PHAK chapter 17: Aeromedical
Factors Exam Questions With 100%
Verified Answers
Hypoxia -
correct answer ✅Hypoxia means "reduced oxygen" or "not
enough oxygen."
Four types of hypoxia -
correct answer ✅- Hypoxic
- Hypemic
- Stagnant
- Histotoxic
Hypoxic Hypoxia -
correct answer ✅Is a result of insufficient oxygen available to the
body as a whole
i.e., Flying at high altitudes
Hypemic Hypoxia -
correct answer ✅- Occurs when the blood is not able to take up
and transport a sufficient amount of oxygen to the cells in the body.
Hypemic means "not enough blood"
,PHAK chapter 17: Aeromedical
Factors Exam Questions With 100%
Verified Answers
- More often, hypemic hypoxia occurs because hemoglobin, the
actual blood molecule that transports oxygen, is chemically unable
to bind oxygen molecules. The most common form of hypemic
hypoxia is CO poisoning
Histotoxic Hypoxia -
correct answer ✅- The inability of the cells to effectively use
oxygen is defined as histotoxic hypoxia. "Histo" refers to tissues or
cells, and "toxic" means poisonous
- This impairment of cellular respiration can be caused by alcohol
and other drugs, such as narcotics and poisons. Research has
shown that drinking one ounce of alcohol can equate to an
additional 2,000 feet of physiological altitude
Stagnant Hypoxia -
correct answer ✅- Stagnant means "not flowing," and stagnant
hypoxia or ischemia results when the oxygen-rich blood in the lungs
is not moving, for one reason or another, to the tissues that need it
, PHAK chapter 17: Aeromedical
Factors Exam Questions With 100%
Verified Answers
- During flight, stagnant hypoxia can occur with excessive
acceleration of gravity (Gs). Cold temperatures can also reduce
circulation and decrease the blood supplied to extremities
Symptoms of Hypoxia -
correct answer ✅*The first symptoms of hypoxia can include
euphoria and a carefree feeling*. With increased oxygen starvation,
the extremities become less responsive and flying becomes less
coordinated. The symptoms of hypoxia vary with the individual, but
common symptoms include:
• Cyanosis (blue fingernails and lips)
• Headache
• Increased reaction time
• Impaired judgment
• Euphoria
• Visual impairment
• Drowsiness
• Lightheaded or dizzy sensation
• Tingling in fingers and toes
• Numbness As hypoxia worsens,
Factors Exam Questions With 100%
Verified Answers
Hypoxia -
correct answer ✅Hypoxia means "reduced oxygen" or "not
enough oxygen."
Four types of hypoxia -
correct answer ✅- Hypoxic
- Hypemic
- Stagnant
- Histotoxic
Hypoxic Hypoxia -
correct answer ✅Is a result of insufficient oxygen available to the
body as a whole
i.e., Flying at high altitudes
Hypemic Hypoxia -
correct answer ✅- Occurs when the blood is not able to take up
and transport a sufficient amount of oxygen to the cells in the body.
Hypemic means "not enough blood"
,PHAK chapter 17: Aeromedical
Factors Exam Questions With 100%
Verified Answers
- More often, hypemic hypoxia occurs because hemoglobin, the
actual blood molecule that transports oxygen, is chemically unable
to bind oxygen molecules. The most common form of hypemic
hypoxia is CO poisoning
Histotoxic Hypoxia -
correct answer ✅- The inability of the cells to effectively use
oxygen is defined as histotoxic hypoxia. "Histo" refers to tissues or
cells, and "toxic" means poisonous
- This impairment of cellular respiration can be caused by alcohol
and other drugs, such as narcotics and poisons. Research has
shown that drinking one ounce of alcohol can equate to an
additional 2,000 feet of physiological altitude
Stagnant Hypoxia -
correct answer ✅- Stagnant means "not flowing," and stagnant
hypoxia or ischemia results when the oxygen-rich blood in the lungs
is not moving, for one reason or another, to the tissues that need it
, PHAK chapter 17: Aeromedical
Factors Exam Questions With 100%
Verified Answers
- During flight, stagnant hypoxia can occur with excessive
acceleration of gravity (Gs). Cold temperatures can also reduce
circulation and decrease the blood supplied to extremities
Symptoms of Hypoxia -
correct answer ✅*The first symptoms of hypoxia can include
euphoria and a carefree feeling*. With increased oxygen starvation,
the extremities become less responsive and flying becomes less
coordinated. The symptoms of hypoxia vary with the individual, but
common symptoms include:
• Cyanosis (blue fingernails and lips)
• Headache
• Increased reaction time
• Impaired judgment
• Euphoria
• Visual impairment
• Drowsiness
• Lightheaded or dizzy sensation
• Tingling in fingers and toes
• Numbness As hypoxia worsens,
