AP103

Question 1

What are the physiological effects of altitude?

Answer 1

Altitude is a threat that causes a disruption of O2 to the body and/or to the brain.

Question 2

What is the most dangerous form of hypoxia and what is it caused by?

Answer 2

Hypoxic Hypoxia, caused by altitude

Question 3

What do all forms of hypoxia have in common?

Answer 3

The all disrupt O2 delivery to the brain

Question 4

What type of hypoxia has the fastest recovery time and how fast is it?

Answer 4

Hypoxic hypoxia, within 3 to 4 breaths

Question 5

What is a basic definition of hypoxic hypoxia?

Answer 5

A form of hypoxia caused by altitude that creates a deficiency in alveolar O2 exchange.

Question 6

How much can rapid decompression reduce your time of useful consciousness?

Answer 6

Up to 50%

Question 7

When can rapid decomp happen?

Answer 7

AT ANY TIME

Question 8

What is the most important thing to know about the symptoms of hypoxic hypoxia?

Answer 8

Know your own symptoms

Question 9

What is the main treatment for an hypoxic individual?

Answer 9

Provide them O2

Question 10

What is hypocapnia and how is it caused?

Answer 10

Low CO2 levels and is the result of eliminating too much CO2 from your body. Excessive rate of breathing and/or an excessive depth of breathing can cause hypocapnia.

Question 11

What are some of the causes of hypocapnia?

Answer 11

1. Emotional Stress
2. Hypoxic Hypoxia
3. Improper Pressure Breathing

Question 12

All physiological symptoms of hypoxia or hypocapnia are treated differently, T/F? If true or false, explain the treatment

Answer 12

True, normalize and control rate and depth of breathing.

Question 13

What are the 4 trapped gas disorders?

Answer 13

1. Ear Block
2. Sinus Block
3. GI Symptoms
4. Tooth Pain

Question 14

What two trapped gas disorders are caused from moving from an area of low pressure to an area of high pressure?

Answer 14

Ear and sinus block

Question 15

What two trapped gas disorders are caused from moving from an area of high pressure to an area of low pressure?

Answer 15

GI and tooth pain

Question 16

What is the main prevention for hypocapnia?

Answer 16

Control your breathing

Question 17

What is the treatment for an ear block?

Answer 17

Valsalva, swallowing, yawning

Question 18

What is the treatment for sinus block?

Answer 18

Level off or gain altitude and Valsalva

Question 19

When should you Valsalva?

Answer 19

Only on descent

Question 20

What should you do if you experience tooth pain during flight?

Answer 20

Descend and immediately report the issue to the flight surgeon

Question 21

What is the most common type of Decompression Sickness and where does it manifest?

Answer 21

The Bends, it manifests in the joints or/and as muscle pain.

Question 22

What can help with Decompression Sickness?

Answer 22

100% O2

Question 23

If you are experiencing the Bends, what should you do?

Answer 23

Immobilize the area

Question 24

What is decompression sickness caused by?

Answer 24

Nitrogen coming out of solution in the tissues and blood

Question 25

What is the most dangerous characteristic of hypoxic hypoxia?

Answer 25

Its insidious onset

Question 26

What are some general signs and symptoms of hypoxia?

Answer 26

Blurring and impaired vision, hot or cold flashes, dizziness, light headedness, euphoria, tingling

Question 27

What is time of useful consciuousness

Answer 27

The period of time from interruption of the oxygen supply to the time when useful function is lost