What should be done for a fainting passenger?

Laying a fainting passenger flat and elevating their legs is the appropriate response because this position helps to increase blood flow to the brain, which can assist in preventing or mitigating the effects of fainting. Elevating the legs promotes better circulation, making it easier for blood to return to the heart and head, reducing the chance of loss of consciousness or helping the person regain consciousness more quickly.

By encouraging someone to stand up quickly, they may actually exacerbate the situation due to further drops in blood flow. Offering food and drink immediately may be inappropriate, as the individual may not be fully alert or able to swallow safely. Applying cold compresses could potentially provide comfort, but it does not address the underlying issue of blood flow and could confuse the body's signals rather than providing immediate assistance.