TD 38

Question 1

Hypoxia results when the body ___________. It generally is associated with flights at high altitude. However, other factors such as ________ abuse, heavy _________, and various ___________ can interfere with blood’s ability to _______ and ________ oxygen, thereby reducing the body’s tolerance to hypoxia. The four major types of Hypoxia are:

Answer 1

lacks oxygen

alcohol

smoking

medications

carry

absorb

1. Hypoxic
2. Hypemic
3. Histotoxic
4. Stagnant

Question 2

The four stages of hypoxic hypoxia and associated altitudes are:

Answer 2

a. Indifferent (0-10, 98-90%)
b. Compensatory (10-15, 89-80%)
c. Disturbance (15-20, 79-70%)
d. Critical (20-25, 69-60%)

Question 3

A smoker at sea level is actually at a psychological altitude of _______ feet compared to a non-smoker.

Answer 3

5000

Question 4

List the three prevention methods for Hypoxic Hypoxia:

Answer 4

1. Limiting time at altitude
2. Using supplemental oxygen
3. Pressurizing the cabin

Question 5

To help prevent or relieve middle ear discomfort associated with changes in altitude, crew members can equalize pressure during descent by __________, _________, or _________________. If these methods do not work, personnel can perform the _________ maneuver. To do this, _______ the mouth, _______ the nose shut, tilt the head upwards, and _______ sharply/firmly.

Answer 5

swallowing

yawing

tensing the throat

Valsalva

close

pinch

blow

Question 6

If middle ear discomfort is not relieved by the action in the previous answer, you should _________ to a level at which pressure can be __________. A slow __________ is then recommended.

Answer 6

ascend

equalized

descent