Table of contentsAltitude Physics Atmosphere
Altitude
Physics and atmospheric conditions
Barometric pressure
PowerPoint-Präsentation
Effects of latitude
Seasonal changes
Latitude and season
Acclimatization
Normal acclimatization
Acute mountain sickness
Symptoms of mild AMS
Any symptom of AMS should be considered due to altitude unless proven otherwise.
What else could it be?
Natural history of AMS
Moderate AMS
Physical findings
Management of moderate AMS
If in doubt, go down.
Measurements
Pulse rate
Oxygen saturation
Severe AMS
Brain
HACE High altitude cerebral oedema
HAPE High altitude pulmonary oedema
Management of severe AMS
Medical treatment
Non medical treatment
Prophylaxis
Medical prophylaxis
Acetazolamide Diamox®
Acetazolamide
Gingko biloba
Coca
Anti asthmatic medication
Oxygen
Treatment of AMS
Slide 39
Dexamethasone
Nifedipine
Slide 42
Hyperbaric bag
Physiology at altitude
Oxygen 21 % of ambient air at all altitudes
Respiration normal values:
Respiration
How do we compensate for this when going to high altitude?
Ventilation
Slide 50
Long term acclimatization
Oxygen uptake and transport
Oxygen transport
Hyperventilation
Circulation
Heart
Blood
Blood cells
Vessels
Brain vessels
Kidneys
Slide 62
Factors affecting acclimatization
Other medical problems at altitude
Thrombosis
Peripheral oedema
High altitude retinopathy
HAFE – high altitude flatus
Pharyngitis/bronchitis
Immune suppression
Tooth ache
Other altitude related hazards
UV - Radiation
Infrared Radiation
Reduced humidity
Sudden climate changes
Slide 77
Medical disease and altitude
Diabetes
Asthma
Heart disease
High blood pressure
Epilepsia
Performance at altitude
General fitness
Muscle power
Cerebral function
Motor function
Verbal learning and memory
Finger tapping test
Aphasia screening test
Long term effects
|