Understanding Allergies and Anaphylaxis

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Questions and Answers

Which symptom is commonly associated with hives?

Runny nose
Sneezing
Itchy swelling (correct)
Bronchospasm

What is a primary cause of hay fever?

Medications
Insect bites
Food allergies
Inhaled antigen (correct)

What is a typical respiratory symptom of asthma?

Flare rash
Increased mucous secretion (correct)
Itchy eyes
Hives

Which condition is primarily linked to localized anaphylaxis?

<p>Hay fever (B)</p> Signup and view all the answers

What occurs during a bronchospasm related to asthma?

<p>Contraction of the bronchi (C)</p> Signup and view all the answers

Flashcards

Localized anaphylaxis

An allergic reaction that affects a specific area of the body, like a rash or itchy eyes.

Hives (urticaria)

Red, itchy welts or bumps that appear on the skin, often in response to an allergen.

Hay fever

An allergic reaction triggered by inhaling allergens like pollen, causing symptoms like itchy eyes, sneezing, and a runny nose.

Asthma

A respiratory allergy where allergens trigger inflammation in the airways, causing increased mucus production and spasms in the bronchi.

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Allergic mediators

Substances released by the body's immune system during an allergic reaction, which contribute to the symptoms of allergy.

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Study Notes

Localized Anaphylaxis

Most allergic reactions are localized.
Localized allergic reactions manifest in various ways.

Hives (Urticaria)

An allergic skin condition.
Characterized by wheal and flare rash.
Wheal: an itchy swelling resembling a mosquito bite.
Flare: redness surrounding the wheal.

Hay Fever

Caused by inhaled antigens.
Symptoms include itchy, teary eyes, sneezing, and a runny nose.

Asthma

A respiratory allergy.
Allergic mediators target the inflamed respiratory tract.
Results in increased mucus secretion and bronchospasm (involuntary muscle contraction of bronchial tubes).

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Description

Explore the different types of allergic reactions with this quiz, focusing on localized anaphylaxis, hives (urticaria), hay fever, and asthma. Test your knowledge about the symptoms, causes, and mechanisms behind these common allergic conditions.