Stage 3 check Flashcards
Hypoxia
Lack of oxygen
Symptoms of Hypoxia
■ Euphoria
■ Headache
■ Slower reaction time
■ Impaired judgement
4 Types of Hypoxia
Hypoxic
Hypemic
Stagnant
Histotoxic
Hypoxic Hypoxia
Lack of oxygen due to atmospheric conditions
Example: High altitudes where air is thinner
Hypemic Hypoxia
Inability to carry oxygen in blood cells - CO2
Example: Anemia, disease, blood loss, deformed blood cells, or CO poisoning
Stagnant Hypoxia
Oxygen deficiency due to poor circulation of blood
Example: Pulling excessive G’s
Histotoxic Hypoxia
Inability for body to use the oxygen
Example: Drugs, alcohol
Oxygen Requirements
(91.211)
■ Required for crew when flying between 12500’ - 14000’ MSL for >30 minutes
■ Mandatory for crew when flying above 14000’ MSL
■ Mandatory for crew and all passengers must be provided above 15000’ MSL
Carbon Monoxide (CO) Poisoning
Symptoms
■ Headache
■ Dizziness
■ Drowsiness
■ Confusion
■ Vomiting
■ Incapacitation
■ Convulsions
Carbon Monoxide (CO) Poisoning
Cause
■ Cabin heater
● Many piston aircraft heat the cabin by air flowing over the manifold
● Exhaust escaping through crack in manifold or seals allow exhaust fumes to mix with air and enter cabin
Carbon Monoxide (CO) Poisoning
Resolution
■ Turn heater off
■ Open windows
■ Tell ATC you suspect CO poisoning
● Declare emergency
■ Land as soon as possible
Hyperventilation
Causes
■ Stress
■ Panic
■ Anxiety
Hyperventilation
Symptoms
■ Lightheadedness
■ Nausea
■ Suffocation
■ Tingling in extremities
■ Rapid pulse and breathing rate
Hyperventilation
Resolution
■ Talking loudly
■ Singing
■ Controlled breathing into a bag
■ Remove cause of stress/anxiety
What is hyperventilation
○ Rapid breathing/abnormal volume of air breathed in and out of lungs
○ Results in decrease of carbon dioxide (CO2) content in blood