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FP-C > flight physiology > Flashcards

flight physiology Flashcards

1
Q
A
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2
Q

light orientation on a fixed wing

A

-red is to the left
-green is to the right
-white on the tail.
when the plane is facing away from you

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3
Q

what is the frequency of the Emergency Locator Transmitter (ELT)

A

-new systems is 406 mHz
-old system is 121.5 mHz

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4
Q

atmospheric layers

A

-troposphere
-stratosphere
-mesosphere
-thermospere

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5
Q

troposphere

A

-Earths surface to 5-9 miles high
-altitude of aeromedical transport
-weather is an issue

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6
Q

stratosphere

A

troposphere to 31 miles high

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7
Q

mesosphere

A

stratosphere to 53 miles high

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8
Q

thermosphere

A

mesosphere to 372 miles high

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9
Q

atmosphere zones

A

-physiological
-physiologically deficient
-space equivalent

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10
Q

physiological zone

A

sea level to 10,000 ft

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11
Q

physiologically deficient zone

A

-extends from 10,000 ft to 50,000 ft
-requires supplemental O2 and pressure equipment
-fixed wing aircraft operate in this zone

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12
Q

space equivalent zone

A

-50,000 ft to 120 miles.
-sun radiation is a factor
-Armstrong’s line

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13
Q

what is another atmospheric pressure

A

is also know as barometric pressure

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14
Q

what is 1 TORR

A

it equals 760 mmhg

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15
Q

what is Dalton’s Law

A

the sum of all the partial pressures equal the total pressure.

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16
Q

what is Boyle’s Law

A

when the pressure increases the volume decreases and when the pressure decreases the volume increases.

think of a balloon.

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17
Q

what is Charles Law

A

As the temperature increases so does the volume. As the temperature decreases so does the volume.

think of a tire on a cold day.

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18
Q

Gay Lussac’s Law

A

-As altitude increases, the temp will decrease and so does the volume.
-as altitude decreases, the temp will increase and so does the volume.

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19
Q

what is Henry’s Law

A

Gas dissolved in to a liquid.

decompression sickness

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20
Q

what are flight stressors

A

hypoxia, noise, vibration, fatigue, G-force, barometric pressure, thermal changes, decreased humidity

21
Q

What types of hypoxia are there

A

-hypoxic hypoxia
-hypemic hypoxia
-histotoxic hypoxia
-stagnant hypoxia

22
Q

what is hypoxic hypoxia

A

decrease in alveolar O2 exchange.

due to Boyles law, as the elevation increases so does the molecules size. bigger molecules means less molecules per breath.

23
Q

what is hypemic hypoxia

A

reduction in RBC’s in the blood so it doesn’t carry as much O2

24
Q

what is histotoxic hypoxia

A

caused by poisoning or metabolic disorder

25
Q

what is stagnant hypoxia

A

reduction of cardiac output or the pooling of blood

26
Q

what are the 4 stages of hypoxia related to altitude.

A

-indifferent stage
-compensatory stage
-disturbance stage
-critical stage

27
Q

indifferent stage of hypoxia

A

-experienced between sea level and 10,00 ft.
- O2 sat of 90-98%

28
Q

Compensatory stage of hypoxia

A

-experienced between 10,000 ft and 15,000 ft

-O2 is at 80-89%

29
Q

Disturbance stage of hypoxia

A

-experienced between 15,000 ft and 20,000 ft.
-O2 sat of 70-79%
-cognition impairment most critical

30
Q

critical stage of hypoxia

A

-experienced above 20,000 ft
- O2 sat of 60-69%
-mental confusion followed by incapacitation, unconsciousness and death.

31
Q

thermal change is defined as

A

-temp decreases 2C for every 1000 ft.
- temp decreases 1F for every 300 ft.

32
Q

what is spatial disorientation

A

inability to determine ones position, altitude, and motion relative to the surface of the earth

33
Q

what is flicker vertigo

A

vertigo that is caused by flickering lights.

34
Q

what is time of useful consciousness

A

time between the interruption of O2 and the time a pilot is unable to perform flying duties effectively.

35
Q

how to determine FiO2 on a patient during flight

A

(current barometric pressure x %FiO2)/ barometric pressure at altitude.

36
Q

What is barodontalgia

A

-dental pain cause by barometric pressure changes
- affected most when you ascend during flight

37
Q

What is VFR

A

Visual Flight Rules

38
Q

what is VMC

A

Visual meteorological conditions

39
Q

what is IFR

A

instrument flight rules

40
Q

what is IMC

A

instrument meteorological conditions

41
Q

what is flight following

A

checking in with flight control every 15 min while in the air

42
Q

what are some pilot qualifications

A

-instrument rated
-2000 total flight hrs
-1200 flight hrs in a rotorcraft
-1000 PIC hrs in a rotorcraft
-100 hrs as night PIC

43
Q

when should you have sterile cock pit

A

any critical phase of flight

44
Q

what are the VFR minimum for the FAA

A

non mountainous
-day- 800’-2 miles
-night (NVG) 800’-3miles
Mountainous
-Day- 800’-3 miles
-night (NVG)- 1000’-3 miles

45
Q

what do you do during inflight emergency

A

-lay patient flat
-secure patient straps
-turn off O2
-secure equipment
-secure self
-helmet visor down
-crash position

46
Q

what is the ELT frequency

A

new- 406 MHz
old- 121.5 MHz

47
Q

What is the sequence for shutting the helicopter down

A

1st- throttle
2nd- fuel
3rd- battery

48
Q

what is the procedure for post crash

A

1st- secure shelter
2nd- find water
3rd- locate food

FP-C (11 decks)

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