In managing a patient with severe cramping in hot weather, what should the EMT do first?

In managing a patient with severe cramping in hot weather, the most appropriate initial action is to place the patient in the back of an air-conditioned ambulance. This step is crucial because it helps to immediately alleviate the effects of heat exposure and prevents the condition from worsening. Heat-related cramping often occurs due to dehydration and the body's inability to cool itself effectively in high temperatures. Getting the patient into a cooler environment will help lower their core body temperature, which is essential for treating heat-related illnesses.

By moving the patient to an air-conditioned space, the EMT provides an immediate relief measure against the heat stressors. Cooling down the patient can also reduce the likelihood of developing more severe conditions such as heat exhaustion or heat stroke, making it a fundamental first step in the management of this type of situation. Other interventions, such as hydration or the application of cold packs, may follow but are secondary to addressing the heat exposure promptly.