How might heat-related illness present during a long flight?

• A. Dizziness, confusion, headache, fainting, rapid breathing or sweating; take cooling measures and hydrate.
• B. Nausea only.
• C. Sneezing.
• D. Abdominal pain.

Answer: (A)

Heat-related illness on a long flight happens when the body can’t dissipate heat effectively in the cabin, especially with dehydration and the dry, warm air. The best indicators are dizziness or confusion, a headache, fainting, and signs like rapid breathing or sweating. This combination shows the CNS effects of overheating and the body's effort to cool itself. The appropriate response is to cool the person and hydrate: move them to a cooler area if possible, loosen tight clothing, use a fan or cool cloths, and have them drink water or an electrolyte beverage while monitoring for worsening symptoms. If symptoms continue or worsen, seek medical help promptly. Nausea by itself isn’t as specific to heat illness, and sneezing or abdominal pain aren’t typical primary signs in this context.