Depressurisation Flashcards
Estimated time of useful consciousness
43000 feet
10 seconds
Estimated time of useful consciousness
40,000 feet
15 seconds
Estimated time of useful consciousness
35,000 feet
45 seconds
Estimated time of useful consciousness
30,000 feet
1 minute
Estimated time of useful consciousness
25,000 feet
3 minutes
Estimated time of useful consciousness 20,000 feet
10 minutes
What people are more likely to suffer from hypoxia
-heart conditions
-respiratory illness
-cold + fatigue
-blood disorders
-use of alcohol drugs, heavy smokers
Early signs of hypoxia
-similar to being intoxicated with alcohol
-reduced night vision
Mild signs of hypoxia
Breathlessness, sleepiness, difficulty in concentration, indifference, unwarranted self confidence, increased pulse rate
Moderate/severe hypoxia
Blue lips + finger tips (cyanosis)
Euphoric
Unconscious
Impaired vision and memory
Headache
Breathlessness
Erratic
Slowed thinking
Acting drunk
Etc
Visible indications of hypoxia
Blue lips and fingertips
Laboured breathing
Gas expansion, sites for potential trapped gases include:
Ears
Sinuses
Abdomen/intestines
Teeth
How can you relieve gas expansion?
Swallow
Yawn
Suck a sweet
Cry
Blow nose
Hold and exhale gently through nose
Symptoms of decompression sickness
Joint pains
Chest pains
Blotchy/marbled skin rash
Visual and mental impairment
Dizziness and confusion
Collapse/unconsciousness
Oven fire what does ski stand for
Switch of electrical power supply
Keep door closed
Implement basic fire drill