What should a pilot do if they suspect an occupant of the aircraft is suffering from decompression sickness?

When a pilot suspects that an occupant is suffering from decompression sickness, the appropriate response is to descend as soon as practical and land where medical help is available. Decompression sickness, also known as "the bends," occurs when a diver or a person exposed to high altitudes experiences a rapid decrease in pressure, which can lead to gas bubbles forming in the body, causing serious health issues.

Descending to a lower altitude increases the ambient pressure around the affected individual, potentially alleviating some symptoms of decompression sickness. It is crucial for the pilot to prioritize the safety and well-being of the passenger by ensuring they receive appropriate medical attention as soon as possible. In-flight treatment of decompression sickness typically requires medical professionals and often hyperbaric oxygen therapy, which is not possible onboard an aircraft in flight.

Continuing the flight without changes would expose the affected individual to further risk and potential complications. Similarly, administering first aid and retrying ascent is not advisable, as it does not address the immediate need for medical intervention and could worsen the condition. Notifying air traffic control and maintaining altitude would also delay the necessary descent for medical assistance and could lead to adverse health outcomes for the occupant in distress. Thus, the best course of action is to descend promptly and land