altitude sickness

altitude sickness PowerPoint PPT Presentation


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Altitude. High Altitude5000 ft to 11,500 ftMinor decrease in O2 transport (SaO2 > 90%)Altitude sickness common with rapid ascent above 8200 feet. Altitude. Very High Altitude11,500 ft to 18,000 ftMaximum SaO2 < 90% ; Pa02 < 60 torrMost common range for serious altitude sickness. Altitude.

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1. Altitude Sickness

2. Altitude High Altitude 5000 ft to 11,500 ft Minor decrease in O2 transport (SaO2 > 90%) Altitude sickness common with rapid ascent above 8200 feet

3. Altitude Very High Altitude 11,500 ft to 18,000 ft Maximum SaO2 < 90% ; Pa02 < 60 torr Most common range for serious altitude sickness

4. Altitude Extreme Altitude > 18,000 ft Severe hypoxemia, hypocapnia Deterioration outstrips acclimatization

5. Altitude Mount Everest 29,028 ft Unacclimatized person Unconscious in 45 seconds Dead in 4 to 6 minutes

6. Altitude Pathophysiology

7. Altitude Pathophysiology

8. Altitude Sickness Symptoms Mild Acute Mountain Sickness Headache Malaise Anorexia Nausea, vomiting

9. High Altitude Cerebral Edema Lassitude Headache Mental dullness Ataxia Focal defects Paralysis Paresthesias

10. High Altitude Pulmonary Edema Dyspnea at rest Fatigue, weakness Orthopnea Hemoptysis, blood-tinged sputum Cyanosis Rales

11. HAPE/HACE Treatment Stop ascent!! Descend immediately if: No improvement with treatment Ataxia, decreased LOC, pulmonary edema Minimize exertion Bed rest

12. HAPE/HACE Treatment Oxygen Pulmonary edema CPAP or PEEP Possible hyperbaric chamber No lasix or morphine (non-cardiogenic) Cerebral edema Steriods (Dexamethasone)

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