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 bloods ability to ________ and _________ oxygen, thereby reducing the body’s tolerance to hypoxia. The four major types of hypoxia are:

7.
8.
9.
10.

Answer 1

1. Lacks Oxygen
2. Alcohol
3. Smoking
4. Medications
5. Carry
6. Absorb
7. Hypoxic
8. Hypemic
9. Histotoxic
10. Stagnant

Question 2

The 4 stages of hypoxic hypoxia and associated altitudes are:

Answer 2

1. Indifferent: 0-10,000 feet
2. Compensatory: 10,000 - 15,000
3. Disturbance: 15,000 - 20,000
4. Critical: 20,000+

Question 3

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

Answer 3

5,000

Question 4

List the three prevention methods for hypoxic hypoxia:

Answer 4

1. Time at altitude
2. Using supplemental oxygen
3. Pressurized 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, tilt the head upwards, and ______ sharply.

Answer 5

1. Swallowing
2. Yawning
3. Tensing throat muscles
4. Valsalva
5. Close
6. Pinch
7. 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

1. Ascend
2. Equalized
3. Descent