What is anaphylaxis?
Anaphylaxis is a severe and potentially fatal allergic reaction that can rapidly affect multiple systems, including respiratory, cardiovascular, and gastrointestinal. Common triggers include food allergies, medications, and insect stings. This condition requires immediate treatment, as it may escalate into anaphylactic shock or cardiac and respiratory arrest.
Symptoms of anaphylaxis vary but often include skin reactions such as hives, itching, flushing, or swelling of the face, lips, eyes, or throat. Respiratory issues like wheezing, shortness of breath, tight throat, or hoarseness are common. Gastrointestinal symptoms can include nausea, vomiting, diarrhea, or abdominal pain, while cardiovascular signs may involve a rapid heartbeat, dizziness, fainting, or decreased blood flow caused by low blood pressure.
Anaphylaxis can be triggered by food allergies, such as nuts, shellfish, milk, eggs, or wheat, as well as medications like antibiotics (e.g., penicillin) and nonsteroidal anti-inflammatory drugs (NSAIDs). Insect stings from bees, wasps, or fire ants and exposure to latex found in medical supplies or condoms are also common causes. In some cases, the cause remains unknown, a condition termed idiopathic anaphylaxis.
Without prompt intervention, anaphylaxis can lead to life-threatening complications, including anaphylactic shock, which causes severe hypotension and decreased blood flow to vital organs. Airway constriction can hinder breathing, and cardiac or respiratory arrest may occur, requiring cardiopulmonary resuscitation. Emergency medications like epinephrine are essential to counteract the allergic response, manage symptoms, and stabilize the patient, followed by immediate medical follow-up to address any further severe reactions.










