Final answer:
You should not apply a warm compress to a person who has fainted; laying them down, applying a cold compress, and ensuring fresh air are correct steps. For unconscious or choking individuals, CPR and the Heimlich maneuver are appropriate first aid practices.
Step-by-step explanation:
All of the following steps should be taken if a person has fainted EXCEPT applying a warm compress. Laying the person down, applying a cold compress, and ensuring they have plenty of fresh air are proper steps. Applying a warm compress is not typically recommended as it may exacerbate the situation by increasing blood flow to an area which doesn't necessarily help someone regain consciousness.
In the case of assisting an unconscious person or someone who is choking, knowing the correct first aid practices is essential. For instance, cardiopulmonary resuscitation (CPR) may be necessary if the person’s heart has stopped, with emphasis on high-quality chest compressions. In a choking scenario, encouraging the person to cough, delivering back slaps, or performing the Heimlich maneuver are crucial steps before medical professionals arrive.