Altitude Physiology

Question 1

Troposphere

Answer 1

Sea Level to 53000 Feet

Question 2

Temp Change per 1,000 Feet

Answer 2

1.98 Celsius

Question 3

Layers of the Atmosphere

Answer 3

Tropospher, Stratosphere, Mesosphere, Thermosphere

Question 4

Physiologic Zones of the Atmosphere

Answer 4

Efficient Zone, Deficient Zone, Space Equivalent Zone

Question 5

Efficient Zone

Answer 5

MSL to 10,000 Feet

Question 6

Deficient Zone

Answer 6

10,000 to 50,000 Feet

Question 7

Space Equivalent Zone

Answer 7

Above 50,000

Question 8

Atmosphere pressure at 18,000 Feet

Answer 8

380 mmHg or 1/2 MSL

Question 9

Composition of the atmosphere

Answer 9

78% Nitrogren
21% Oxygen
1% Other

Question 10

Partial Pressure of Oxygen Equation

Answer 10

0.21 x ATM

Ex. 0.21 x 760 = 160mmHg

Question 11

Dalton’s Law

Answer 11

Law of Partial Pressures

Question 12

Hypoxic Hypoxia

Answer 12

Lack of actual oxygen

Question 13

Hypemic Hypoxia

Answer 13

Inability of blood to adequately transport oxygen

Question 14

Stagnant Hypoxia

Answer 14

Inadequate ability of blood to circulate

Question 15

Histotoxic Hypoxia

Answer 15

Inability of tissues to use oxygen

Question 16

Stages of Hypoxia

Answer 16

Indifferent, Compensatory, Disturbance, Critical

Question 17

Stages of Hypoxia: Indifferent

Answer 17

Up to 10,000 Feet MSL, decrease in night vision at 4000 feet. You don’t notice

Question 18

Stages of Hypoxia: Compensatory

Answer 18

10,000 - 15,000 Feet 80- 89% SpO2

Impaired judgement starts to set in

Question 19

Stages of Hypoxia: Disturbance

Answer 19

15,000 to 20,000 Feet 70 -79% SpO2

Severe effects set in

Question 20

Stages of Hypoxia: Critical

Answer 20

Death is approaching

Question 21

Henry’s Law

Answer 21

Gases Dissolved into a liquid

Question 22

Charles Law

Answer 22

Temp and and volume (Helicopter’s fly better in the cold)