DQ38

Question 1

Hyboxia 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:

a.

b.

c.

d.

Answer 1

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

a. Hypoxic
b. Hypemic
c. Stagnant
d. Histotoxic

Question 2

The four stages of hypoxia and associated altitudes are:

a.

b.

c.

d.

Answer 2

The four stages of hypoxia and associated altitudes are:

a. Indifferent (0-10.000)
b. Compensatory (10-15.000)
c. Disturbance (15-20.000)
d. Critical (20-25.000)

Question 3

A smoker at sea level is actually at a physiological altitude of 5.000 feet compared to a nonsmoker

Answer 3

A smoker at sea level is actually at a physiological altitude of _______ feet compared to a nonsmoker

Question 4

List the three prevention methods for Hypoxic Hypoxia:

1.

2.

3.

Answer 4

List the three prevention methods for Hypoxic Hypoxia:

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, crewmembers 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.

Answer 5

To help prevent or relieve middle ear discomfort associated with changes in altitude, crewmembers can equalize pressure during descent by swallowing, yawning, or tensing. If these methods do not work, personnel can perform the Valsalva maneuver. To do this close the mouth, pinch the nose shut, tilt the head upwards, and blow sharply.

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

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