Final answer:
Summon more advanced medical personnel and place the victim into a position that helps breathing.
Step-by-step explanation:
When providing care to a 12-year-old boy at a swim meet who is wheezing and has a history of asthma, the appropriate care would be to summon more advanced medical personnel and place the victim into a position that helps breathing. In this case, since the boy does not have his inhaler nearby, it is important to seek professional medical help as soon as possible.