What is a common sign of anaphylaxis that EMTs should look for?

Swelling of the face and throat is a key sign of anaphylaxis, a severe and potentially life-threatening allergic reaction. This reaction typically occurs in response to allergens such as certain foods, medications, insect stings, or other triggers. When anaphylaxis occurs, the body releases chemicals, including histamines, that can lead to widespread inflammation and resulting swelling, particularly in the facial region and throat. This swelling can obstruct the airway, making it crucial for EMTs to recognize this sign promptly to initiate appropriate emergency interventions, such as administering epinephrine.

In contrast, abdominal pain, while it can occur during an anaphylactic reaction, is not a hallmark sign. Elevated blood sugar levels are not directly associated with anaphylaxis and more commonly relate to other medical conditions, such as diabetes. Increased heart rate can indeed be a response to anaphylaxis; however, it is not as definitive a sign as visible swelling of the throat and face, which directly indicates the severity and immediacy of the allergic reaction.