Altitude illness

Hazards

• Health effects caused by insufficient acclimatization to reduced oxygen at elevation.

Controls

• Plan gradual ascent, recognize symptoms, reduce exertion, descend when indicated, and obtain care.

Personal protective equipment

• Select task-specific PPE only after hazards and higher-order controls have been evaluated.

Regional considerations

• Applicable law, permits, collective agreements, venue rules, and qualified-person decisions take precedence.

In practice

Plan gradual ascent, recognize symptoms, reduce exertion, descend when indicated, and obtain care.

Explore related entries

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