Flight Physiology Flashcards
Flight following should occur every _____ min
15 min
PAIP should be implemented _____ min after an aircraft fails to give position report or is overdue for arrival.
15 min
______ inches between flight suit and you.
1/4 inch
ELT Frequency
121.5
ELT activates at _____ g
4
Shut Down Procedure
Throttle
Fuel
Battery
Optimal Day Landing Zone Size
75x75
Boyle’s Law
- The Volume of a gas is inversely proportional to its pressure, assuming temperature is constant
- (P1)(V1)=(P2)(V2)
- As Pressure Increases, Volume Decreases
- As Pressure Decreases, Volume Increases
“Boyle’s Balloon”
Barotitis Media is a ____________ problem
Ascent
Barobariatrauma is caused by:
A sudden/large release of nitrogen from adipose tissues of the body upon decompression.
Barobariatrauma is treated by
Thoroughly pre oxygenating
Partial Pressure Calculation
Given Gas Concentration x total pressure present.
Ex: 760 mmHG x 0.3 = 228 mmHg
You should anticipate a greater change in atmospheric pressure per altitude change when flying closer to the _____
North Pole
Charle’s Law states that as you increase the temperature of a gas you should anticipate:
A Volume Increase
“Charles Centigrade”
The release of a gas exhibited when opening a carbonated drink is a clear demonstration of which gas law?
Henry’s Law
For every 100 meter climb in altitude you can anticipate:
A temp drop of 1C
Graham’s Law is influenced more by:
Gas Density
Stressors of Flight
Hypoxia Pressure Changes Thermal Changes Decrease Humidity Noise Vibration Fatigue G-Force
Physiological Zone Altitude
Sea Level to 10,000
Physiological Deficient Zone Altitude
10,001 to 50,000
Space-Equivilant Zone Altitude
50,001 to 250,000
Space Altitude
Greater then 250,000
Hypoxic Hypoxia
a. Cant oxygen in your body
b. If someone puts a plastic bag over your face you will become hypoxic
Stagnant Hypoxia
a. You are able to get oxygen into your lungs and you are able to load oxygen onto hemoglobin. But for some reason the blood is not able to move due to one of below reasons.
b. Occurs when cardiac output fails to meet the metabolic demand of the tissues
c. Test Tip: You are a train station. You have a lot of people in the station (O2 molecules) and plenty of train cars (Hgb) but the train cars are broke and can’t go anywhere.
Hypemic Hypoxia
a. Reduction in the oxygen carrying capacity in the blood (Hgb)
Histotoxic Hypoxia
a. Caused when the tissues are unable to utilize available oxygen
b. The result of poisoning or metabolic disorders
i. Causes
1. Respiratory enzyme poisoning
2. Intake of CO, Cyanide or ETOH
3. Toxicological Emergencies
Four Stages of Hypoxia
- Indifferent
- Compensatory
- Disturbance
- Critical
Indifferent Stage:
The first stage
Sea Level to 10,000 ft
Slight Increase in HR and RR
Decrease Night Vision
Compensatory Stage
The Second Stage
10,000 to to 15,000
Body Attempts to protect itself
Increase in BP, HR and depth and rate of resp.
Efficiency and performance of tasks that require mental alertness become impaired
Disturbance Stage
3rd Stage 15,000 to 20,000 Dizziness Sleepiness Tunnel Vision Cyanosis Thinking and muscle coordination becomes slow
Critical Stage
4th Stage
20,000 to 30,000
Marked Mental Confusion
Incapacitation followed by unconsciousness within a few minutes
Time of Useful Consciousness
Altitude Time 18,000 and below 30 min 25,000 3-5 min 30,000 90 Sec 35,000 30-60 sec 40,000 and higher 15 sec or less
Commonly healthy, unimpaired flight crew member will begin to experience deterioration of night vision at:
5000 MSL
Night vision is primarily a function of the _________ which are located_________ in the retina.
Rods
Periphery
33 feet water=
1 atmosphere
A diver has descended 66 ft below the surface. At this point he is experiencing how many atmospheric pressures
3
The Proper Shut-down procedure for a typical aeromedical aircraft follows which priority:
Throttle Fuel Battery Rotor Brake Oxygen
Cell Phones Violate
FCC guidelines
Hazards should be announced by:
Location
Hazard
Heading
Dalton’s Law
- The total pressure in a container is the sum of the partial pressure (“the gang”) of all the gases in the container.
- Pt=P1+P2+P3+P4 .
“Dalton’s Gang”
Charles’ Law
- Which states that changes in temperature will cause a change in volume assuming pressure is constant
- P1/T1=P2/T2
“Charles Centigrade”
“Charles is a hot head”
Gay-Lussac’s Law
• The pressure of a fixed amount of gas at a fixed volume, proportional to the temperature
• Similar to Charle’s Law
o “Gay-Lussac is Charles’s gay brother.”
o Sames as Charles’s Law only in a vessel with a fixed size
o Gay-Lussac is about pressure
Henry’s Law
• At a constant temperature the amount of gas dissolved in a given volume of liquid is directly proportional to the partial pressure of that gas in the gas phase
“Henry’s Heineken”
Graham’s Law
- The rate of diffusion through a liquid medium is directly related to the solubility of the gas and inversely proportional to the square root of its density
- Translation: At equal pressure and temperature, gases with a smaller mass will diffuse faster than gases with a larger mass.
“Graham’s Grape Jelly”
Elements that must be probed in a malpractice case are _____
- Causation
- Injury
- Damage
Admin the wrong medicine would be____
Breach of Duty and malfeasance
Failure to follow a procedure would be____
nonfeasance
A repeater system is a type of which of the following radio systems?
Half Duplex
Four Basic Variables that affect gas volumetric relationships are:
- Temp
- Pressure
- Volume
- Relative mass of gas or the number of molecules
_______ is the leading cause of death among scuba divers
AGE
