The most common cause of fatal anaphylaxis is an allergic reaction to a food or medication. Anaphylaxis is a severe and potentially life-threatening allergic reaction to a foreign substance, such as a food or medication. It can occur within minutes or even seconds after exposure to the allergen.
The most common food allergens that can cause anaphylaxis are peanuts, tree nuts, shellfish, fish, dairy, eggs, and wheat. Medications that can cause anaphylaxis include antibiotics, aspirin, and certain over-the-counter and prescription medications.
In fatal anaphylaxis, symptoms can be severe and rapidly progress. Symptoms can include difficulty breathing, chest tightness, hives, nausea, vomiting, abdominal pain, swelling of the face, lips, or throat, dizziness, lightheadedness, confusion, and a decrease in blood pressure. If left untreated, anaphylaxis can lead to death.
It is important to note that anaphylaxis can be triggered by something other than a food or medication. Other triggers can include insect stings, latex, and exercise. If you or someone you know is experiencing signs or symptoms of anaphylaxis, it is important to seek immediate medical attention.