What is the typical first response for an animal that has become hyperthermic?

Active cooling is the most effective and immediate response for an animal that has become hyperthermic, as it directly targets the elevated body temperature. This can involve methods such as submerging the animal in cool water, using ice packs on areas with high blood flow (like the groin and armpits), or applying cool, wet towels to the animal's body. These techniques help dissipate heat rapidly, which is crucial in preventing further physiological damage that can occur if the hyperthermia persists.

While providing cool water and taking the animal to a shaded area are helpful steps, they are generally more supportive and may not be sufficient alone to counteract severe hyperthermia. Covering an animal with a blanket would further increase body temperature, which is counterproductive in hyperthermic situations. Therefore, focusing on active cooling provides the necessary immediate intervention to stabilize the animal's condition effectively.