Anaphylaxis is a serious, potentially life-threatening allergic reaction that happens very quickly after exposure to an allergen, such as certain foods, insect stings, medications, or latex. Symptoms can develop within minutes and may include difficulty breathing, swelling of the throat and face, a sudden drop in blood pressure, hives, and dizziness or fainting. There are three main types of anaphylaxis: anaphylactic shock, which causes a significant drop in blood pressure; biphasic anaphylaxis, where symptoms return within hours after the initial reaction; and anaphylactoid reaction, triggered when certain cells in your body release allergy-causing substances directly, even without an allergic trigger. Immediate treatment with epinephrine is essential to stop the allergic response, followed by medical attention to monitor and manage symptoms. Avoiding known allergens and carrying an epinephrine auto-injector are crucial preventive measures for those at risk of anaphylaxis.

“anaphylaxis”的英语定义和含义

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