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Occupational Altitude Sickness

High altitude exposure; acute mountain sickness or chronic adaptation; acclimatization and oxygen supplementation.

Key Information

  • Occupational health physician evaluation helpful
  • Prevention and hazard reduction critical
  • Proper protective equipment use important
  • Workplace exposure documentation valuable

About Occupational Altitude Sickness

High altitude exposure; acute mountain sickness or chronic adaptation; acclimatization and oxygen supplementation.

For comprehensive information about workplace hazards, health effects, and occupational health measures, consult with an occupational health physician or your healthcare provider.

Frequently asked

Common questions about Occupational Altitude Sickness.

Quick, plain-English answers to what people ask us most.

  • What is occupational altitude sickness?

    Occupational altitude sickness refers to altitude-related illness occurring in workers who operate at high elevations, such as in mining, aviation, or mountain-based industries, due to reduced oxygen availability.

  • What causes occupational altitude sickness?

    It is caused by rapid ascent to high altitude without adequate acclimatisation, where reduced atmospheric oxygen affects the body, particularly if a worker travels to or from altitude frequently without time to adjust.

  • What are the symptoms of occupational altitude sickness?

    Symptoms include headache, nausea, fatigue, dizziness, and difficulty sleeping, with more severe forms causing confusion, severe breathlessness, or swelling, which require urgent descent and treatment.

  • Is occupational altitude sickness dangerous?

    Yes, severe forms such as high-altitude cerebral or pulmonary oedema can be life-threatening, making proper acclimatisation protocols and recognition of warning symptoms essential for worker safety.

  • Can occupational altitude sickness be prevented?

    Yes, gradual ascent protocols, adequate rest periods for acclimatisation, appropriate hydration, and workplace policies that avoid excessive rapid altitude changes can significantly reduce risk.

  • How is occupational altitude sickness treated?

    Mild cases often improve with rest, hydration, and avoiding further ascent, while more severe cases require descent to lower altitude and, in serious cases, oxygen therapy or specific medications.

  • How long does it take to acclimatise to high altitude for work?

    Acclimatisation typically takes several days to a couple of weeks depending on the altitude and individual factors, which is why structured ascent schedules are important in occupational settings.

  • Occupational altitude sickness vs recreational altitude sickness — what's the difference?

    The underlying physiology is the same, but occupational settings often involve repeated altitude exposure, shift patterns, and specific workplace risk management requirements that differ from a one-off recreational trip, requiring tailored occupational health protocols.

  • Who is at higher risk of occupational altitude sickness?

    Those with underlying heart or lung conditions, previous history of altitude sickness, and workers who ascend rapidly without proper acclimatisation are at higher risk.

  • When should I seek advice about occupational altitude sickness, and how quickly can I be seen privately?

    Seek occupational health advice before starting high-altitude work. Private occupational health assessment is often available within about one to two weeks, and urgent symptoms at altitude need immediate medical attention and descent.