First Test Flashcards
Partial Pressure Equation
Partial Pressure (PO2) = Total Pressure (PB) x % Oxygen
A condition that interrupts the flow of oxygen into the lungs.
Hypoxic Hypoxia
Where do you have NO SYMPTOMS?
Danger Zone
The condition that interferes with the normal metabolic activity of O2 in Body (Brain) cells.
Histotoxic Hypoxia
The condition that interferes with he ability of the blood cells to transport oxygen.
Hypemic Hypoxia
What is 200 times more attractive to Red Blood Cells then Oxygen?
Carbon Monoxide
The condition that interferes with the normal circulation of the blood arriving at cells.
Stagnant Hypoxia
Subjective Stagnant Symptoms
Air Hunger Headache Nausea Hot & Cold Flashes Euphoria Tingling Numbness Vision Issues
Objective Stagnant Signs
Mental Confusion
Increase in rate and depth of breathing Cyanosis
Poor Judgment
If you start thinking/doing something that doesn’t make sense, what do you do?
Get on Oxygen!!!
The time from exposure to hypoxic conditions until an individual is no longer able to manage safe operations.
Effective Performance Time
Effective Performance Time
The time from exposure to hypoxic conditions until an individual is no longer able to manage safe operations.
Stagnant Hypoxia
The condition that interferes with the normal circulation of the blood arriving at cells.
Effective Performance Times
- FL 180
- FL 250
- FL 350
- FL 500 & Above
- 20 to 30 minutes
- 3 to 5 minutes
- 30 to 60 seconds
- 9 to 12 seconds
Effective Performance Time reduced 30% to 50% after what?
Rapid Decompression
Treatment for Hypoxia
- 100% Oxygen w/pressure
- Return Rate and Depth of Breathing to Normal
- Check Connections
- Descend Below 10,000ft - tend to passengers
The loss of carbon dioxide exceeds the body’s production of CO2.
Hyperventilation
Hyperventilation
The loss of carbon dioxide exceeds the body’s production of CO2.
Subjective Hyperventilation Symptoms
- Tingling
- Nausea
- Light Headedness
- Dizziness
- Faintness
- Visual Problems
Objective Hyperventilation Signs
- Muscle Twitching
- Cold, Clammy Skin
- Muscle Tetany
- Paleness
- Unconsciousness
Panic Control
- Focus on life-saving actions
- Rely on training/muscle-memory
Panic Management 101
- Tactical Breathing
- Practice visualization/desensitization
- Talk yourself through
- Stay outwardly focused/Never give up
Ear Block Treatment
- Clearing procedures
- move jaw and swallow at the same time
- Chewing Gum
- Yawning
Valsalva Maneuver
- Pinch nose off
- Keep mouth closed
- Increase pressure in mouth
- Don’t puff out cheeks
- Tilt head if one ear slow
S.C.R.E.A.M
S - Supply C - Connections R - Regulator E - Emergency Equipment A - Adjustments of the Mask M - Mask Condition
FAA Requirements for Portable Breathing Equipment
- FAR Part 91.211
- Unpressurized aircraft
- 12,500 and 14,000 for more than 30 minutes
- 14,000
- 15,000 provide it for passengers if the cabin exceeds 15,000
What needs an air-tight seal to operate properly?
Quick Don Mask
