Allergic Reactions and Anaphylaxis: EMT Key
Concepts and Treatment Questions and Correct
Answers | Latest Update
What is an allergic reaction?
Ans: An exaggerated immune response to a substance (allergen).
What is an allergen?
Ans: A substance that triggers an allergic reaction.
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What are common allergens EMTs should recognize?
Ans: Foods, insect stings, medications, latex, plants, chemicals.
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What is anaphylaxis?
Ans: A severe, life-threatening allergic reaction affecting airway,
breathing, and circulation.
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What is the difference between a mild allergic reaction and anaphylaxis?
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Ans: Mild: localized symptoms like hives and itching; Anaphylaxis:
airway swelling, breathing difficulty, shock.
What chemical causes most allergic reaction symptoms?
Ans: Histamine.
What are the effects of histamine release?
Ans: Vasodilation, increased capillary permeability,
bronchoconstriction, swelling.
What are early signs of an allergic reaction?
Ans: Itching, hives, redness, localized swelling.
What are airway signs of anaphylaxis?