ARMY AEROMEDICAL KNOWLEDGE FOR AVIATORS LATEST
2024 ACTUAL EXAM QUESTIONS AND CORRECT VERIFIED
ANSWERS|GRADED A+
Emotional Signs and Symptoms of Stress - ANSWER-
Emotional responses to stress range from increased anxiety,
irritability, or hostility to depressed mood, loss of self-esteem,
hopelessness, and an inability to enjoy life
Behavioral Sign and Symptoms of Stress - ANSWER-High
stress can adversely affect one's work performance, decrease
motivation, and increase the likelihood of conflict,
insubordination, and violence in the workplace
Stressor Definition - ANSWER-any stimulus or event that
requires an individual to adjust or adapt in some way—
emotionally, physiologically, or behaviorally
Types of Stressors - ANSWER-Physiological
Psychosocial
Environmental
Cognitive
,Standard Temperature Lapse - ANSWER--2° per 1000 feet
The Efficient Zone - ANSWER-Extending upward from sea
level to 10,000 feet, the efficient zone provides aircrews with
a near ideal physiological environment
The Deficient Zone - ANSWER-10,000 - 50,000 ft
Hypoxia Definition - ANSWER-State of O2 deficiency in the
blood cells and tissues significant enough to cause
impairment of function
Types of Hypoxia - ANSWER-Hypoxic
Hypemic
Histotoxic
Stagnant
Hypoxic Hypoxia - ANSWER-there is not enough O2 in the air
or when decreasing atmospheric pressure prevents diffusion
of O2 from the lungs to the bloodstream. This is the kind
aviators are most likely to experience above 10,000 feet. May
begin to feel effect over 10,0000 feet (i.e high altitude)
,Hypemic Hypoxia - ANSWER-Reduction in O2 carrying
capability of red blood cells; e.g. carbon monoxide, blood loss
Stagnant Hypoxia - ANSWER-Inadequate circulation of blood
cells. Compressed blood vessels cause not enough blood to
reach the tissues. Can be caused by extreme G manuevers
Histotoxic Hypoxia - ANSWER-There exists some interference
with the use of O2 by the body tissues. Metabolic poisons
such as alcohol, narcotics, and drugs such as cyanide prevent
the tissues from using oxygen delivered to them
Difference between Signs and Symptoms of Hypoxia -
ANSWER-Signs are effects on the body can be observed by
others and are therefore considered objective. However,
individuals can observe or feel their own symptoms. Since
symptoms can vary from person to person, they are
considered subjective
Signs of Hypoxia - ANSWER-Hyperventilation, cyanosis,
mental confusion, poor judgement, lack of muscle
coordination.
, Symptoms of Hypoxia - ANSWER-Increased breathing rate,
Euphoria, Apprehension, Belligerence, Fatigue, Blurred vision,
Headache, Tunnel vision, Dizziness, Numbness, Hot and cold
flashes, Tingling, Denial
Tobacco effect on blood and physiologic altitude - ANSWER-
Smoking 3 cigarettes in rapid succession or 20 to 30 cigarettes
within 24 hours before a flight can saturate 8 to 10 percent of
blood's hemoglobin. Physiological effects of this condition
include loss of about 20 percent of a smoker's night vision at
sea level and a physiologic altitude of 5,000 feet at sea level
Alcohol effects on Blood - ANSWER-individual who has
consumed 1 ounce of alcohol can have a physiologic altitude
of 2,000 feet sea level. Chronic, excessive alcohol use can also
impair blood production.
Stages of Hypoxic Hypoxia - ANSWER-Indifferent
Compensatory
Disturbance
Critical
Indifference Stage - ANSWER-0-10,000 feet
Decreased night vision at 4,000 feet
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