Must Know

Question 1

Rules for pilots wearing oxygen

Answer 1

10-12K ft if unpressurized over 30min
always over 12K
Part 135

Question 2

Rules for crew wearing oxygen

Answer 2

part 91
12-14K minimum crew wars oxygen if over 30min
all over 15K ft

Question 3

rate at which temp and altitude changes

Answer 3

lapse rate

3.5F per 1K ft

Question 4

temp & volume

Answer 4

Charles’s law

Question 5

gas law that explains thin air at high altitude

Answer 5

Dalton’s

21% O2 at all altitudes yet pressure less to drive into lungs

Question 6

Henry’s Law

Answer 6

amount of gas dissolved depends on the pressure of the gas above the solution

• pressure & solubility
• decompression sickness

Question 7

trapped gas pain in GI system

Answer 7

ascend = pain worse
descent = pain better

Question 8

trapped gas pain in face

Answer 8

pain with descent

Question 9

trapped gas pain in teeth

Answer 9

ascend= bad
descend = improved

Question 10

4 stages of hypoxia

Answer 10

indifferent = up to 10K
compensatory = 10-15
disturbance = 15-20
critical= over 20K

Question 11

TUC 18K ft

Answer 11

20-30min

Question 12

TUC 25K ft

Answer 12

3-5min

Question 13

TUC 30K ft

Answer 13

1-2 min

Question 14

TUC 35K

Answer 14

30-60 sec

Question 15

decibels of a cockpit of single engine plane

Answer 15

70-90 decibels

Question 16

decibels of a single engine helicopter

Answer 16

80-102

Question 17

gas law that explains gas diffusing from high to low

Answer 17

Graham’s

Question 18

difference between Graham’s & Henry’s law

Answer 18

Graham’s: gas diffuse form high to low. O2/CO2 across alveoli
Henrys: dissolution by pressure

Question 19

gas law that explains why oxygen/CO2 move across the cell membrane

Answer 19

Graham’s law

Question 20

gas law that explains hypoxic hypoxia

Answer 20

Graham’s

Question 21

burn center criteria for partial thickness

Answer 21

transfer if partial thicckness over 10% TBSA

Question 22

rule of 9s arms

Answer 22

4.5%

Question 23

rule of 9’s head

Answer 23

4.5%

Question 24

rule of 9’s chest/abdomen

Answer 24

chest = 9%

abdomen - 9%

Question 25

rule of 9's legs

Answer 25

9%

Question 26

lateral MI

Answer 26

I avL V5 V6

Question 27

I, aVL, V5, V6

Answer 27

lateral MI

Question 28

anterior MI

Answer 28

V3 | V4

Question 29

V3 | V4

Answer 29

anterior MI

Question 30

CXR of ARDS-3

Answer 30

ground glass patchy infiltrates bilateral diffuse infiltrates

Question 31

Swan-Ganz of ARDS

Answer 31

``` high PAWP (18-20) pressure is higher than norm b/c right heart is pumping against increased resistance in the lung vasculature ```

Question 32

Ventilator for ARDS

Answer 32

``` peep over 10 & high FiO2 low Vt (4ml/kg) increase rate (F) ```

Question 33

Vt if ARDS

Answer 33

set to be low like 4ml/kg

Question 34

PEEP if on ventilator and you have ARDS

Answer 34

Peep over 10

Question 35

rate if on a ventilator and have ARDS

Answer 35

increase rate to 18-22