TC 3-04.93 Aeromedical Training for
Flight Personnel Exam Actual Questions
and Answers 2026
Definition of Hypoxia -
correct answer ✅Hypoxia is defined as the state of O2 deficiency
in the blood cells and tissues significant enough to cause
impairment of function.
Types of hypoxia -
correct answer ✅Hypoxic
Hypemic
Stagnant
Histotoxic
Definition of Hypoxic Hypoxia -
correct answer ✅Occurs when there is not enough O2 in the air or
when decreasing atmospheric pressure prevents diffusion of O2
from the lungs to the bloodstream.
Definition of Hypemic Hypoxia -
correct answer ✅Hypemic, or anemic hypoxia is caused by a
reduction in blood's O2-carrying capacity. Anemia and blood loss
are the most common types of this type of hypoxia.
,TC 3-04.93 Aeromedical Training for
Flight Personnel Exam Actual Questions
and Answers 2026
Definition of Stagnant Hypoxia -
correct answer ✅Blood's O2-carrying capacity is adequate but
circulation is inadequate. Blood vessels are compressed and not
enough blood is reaching the tissues. Conditions such as heart
failure, arterial spasm, and blood Bessel occlusion predispose
affected individuals to stagnant hypoxia.
Definition of Histotoxic Hypoxia -
correct answer ✅Results from interference with the use of O2 by
body tissues. Alcohol, narcotics, or poison such as cyanide can
poison the tissues inhibiting it from using available O2.
Stages of Hypoxia -
correct answer ✅Indifferent
Compensatory
Disturbance
Critical
Describe the oxygen saturation level, altitude and symptoms
associate with the indifferent stage. -
correct answer ✅98%-90% oxygen saturation
, TC 3-04.93 Aeromedical Training for
Flight Personnel Exam Actual Questions
and Answers 2026
0-10,000 feet
Decreased night vision at 4,000 feet MSL
Describe the oxygen saturation level, altitude and symptoms
associate with the compensatory stage. -
correct answer ✅89%-80% oxygen saturation
10,000-15,000 feet
Drowsiness, poor judgment, impaired coordination and efficiency
Describe the oxygen saturation level, altitude and symptoms
associate with the disturbance stage. -
correct answer ✅79%-70% oxygen saturation
15,000-20,000 feet
Impaired flight control, handwriting, speech, vision, intellectual
function, and judgement, decreased coordination, memory, and
sensation to pain
Describe the oxygen saturation level, altitude and symptoms
associated with the critical stage. -
correct answer ✅69%-60% oxygen saturation
Flight Personnel Exam Actual Questions
and Answers 2026
Definition of Hypoxia -
correct answer ✅Hypoxia is defined as the state of O2 deficiency
in the blood cells and tissues significant enough to cause
impairment of function.
Types of hypoxia -
correct answer ✅Hypoxic
Hypemic
Stagnant
Histotoxic
Definition of Hypoxic Hypoxia -
correct answer ✅Occurs when there is not enough O2 in the air or
when decreasing atmospheric pressure prevents diffusion of O2
from the lungs to the bloodstream.
Definition of Hypemic Hypoxia -
correct answer ✅Hypemic, or anemic hypoxia is caused by a
reduction in blood's O2-carrying capacity. Anemia and blood loss
are the most common types of this type of hypoxia.
,TC 3-04.93 Aeromedical Training for
Flight Personnel Exam Actual Questions
and Answers 2026
Definition of Stagnant Hypoxia -
correct answer ✅Blood's O2-carrying capacity is adequate but
circulation is inadequate. Blood vessels are compressed and not
enough blood is reaching the tissues. Conditions such as heart
failure, arterial spasm, and blood Bessel occlusion predispose
affected individuals to stagnant hypoxia.
Definition of Histotoxic Hypoxia -
correct answer ✅Results from interference with the use of O2 by
body tissues. Alcohol, narcotics, or poison such as cyanide can
poison the tissues inhibiting it from using available O2.
Stages of Hypoxia -
correct answer ✅Indifferent
Compensatory
Disturbance
Critical
Describe the oxygen saturation level, altitude and symptoms
associate with the indifferent stage. -
correct answer ✅98%-90% oxygen saturation
, TC 3-04.93 Aeromedical Training for
Flight Personnel Exam Actual Questions
and Answers 2026
0-10,000 feet
Decreased night vision at 4,000 feet MSL
Describe the oxygen saturation level, altitude and symptoms
associate with the compensatory stage. -
correct answer ✅89%-80% oxygen saturation
10,000-15,000 feet
Drowsiness, poor judgment, impaired coordination and efficiency
Describe the oxygen saturation level, altitude and symptoms
associate with the disturbance stage. -
correct answer ✅79%-70% oxygen saturation
15,000-20,000 feet
Impaired flight control, handwriting, speech, vision, intellectual
function, and judgement, decreased coordination, memory, and
sensation to pain
Describe the oxygen saturation level, altitude and symptoms
associated with the critical stage. -
correct answer ✅69%-60% oxygen saturation
