Allergic Reactions and Toxicity Quiz
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Questions and Answers

What is the key difference between an allergy and toxicity?

  • Allergies are dose-dependent, while toxicities are not.
  • Allergies exhibit similar reactions on subsequent exposure, while toxicities do not.
  • Allergies are immune-based, while toxicities are non-specific. (correct)
  • Allergies lead to accumulative effects, while toxicities do not.

Which type of hypersensitivity involves an immediate, IgE-mediated reaction like anaphylaxis?

  • Type IV
  • Type I (correct)
  • Type III
  • Type II

What is the primary reason why allergies are not dose-dependent?

  • The immune system ignores the dose of allergens.
  • Small doses of allergens can still trigger a reaction. (correct)
  • Allergens do not have a dose-response relationship.
  • Allergies are only triggered by large doses of allergens.

Which route of entry for allergic reactions involves hay fever and asthma?

<p>Inhalational (A)</p> Signup and view all the answers

What is the key characteristic of Type IV hypersensitivity?

<p>Delayed hypersensitivity involving T cells (C)</p> Signup and view all the answers

Why must dental teams be knowledgeable about managing anaphylaxis?

<p>To address immediate IgE-mediated reactions. (D)</p> Signup and view all the answers

What oral side effect can salazopyrene have?

<p>Lichenoid reactions (C)</p> Signup and view all the answers

What is a possible allergic reaction to toothpastes and mouthwashes?

<p>Contact stomatitis (C)</p> Signup and view all the answers

What is the best method to test for type IV hypersensitivity?

<p>Patch testing (B)</p> Signup and view all the answers

Which drug can cause a side effect of loss of taste?

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

What is a symptom of Angioedema?

<p>Deeper swelling affecting the skin and sometimes upper airway (D)</p> Signup and view all the answers

What is a possible allergic reaction to creams, ointments, and impression materials?

<p>Gingival desquamation and granulomatous reactions (D)</p> Signup and view all the answers

What filling material can cause a lichenoid reaction on the buccal mucosa?

<p>Amalgam (D)</p> Signup and view all the answers

What are 4 adverse effects associated with Local Anesthetics (LA)?

<p>Allergic reactions due to blocking of ion channels in cell membranes (A)</p> Signup and view all the answers

What are 4 ways type IV hypersensitivity can occur orally?

<p>Contact sensitivity due to cosmetic work (D)</p> Signup and view all the answers

What drugs can cause a side effect of oral ulceration?

<p>NSAIDs and Methotrexate (A)</p> Signup and view all the answers

What is the main cause of chronic angioedema according to the text?

<p>Medicines (A)</p> Signup and view all the answers

Which type of food allergy reaction is characterized by symptoms like perioral erythema, lip swelling, and nausea + vomiting?

<p>Immediate (C)</p> Signup and view all the answers

What type of reaction is a delayed food allergy, and what distinguishes it from an immediate reaction?

<p>Delayed hypersensitivity reaction - Onset in hours to weeks (B)</p> Signup and view all the answers

Which condition is specifically characterized by symptoms like eczema, joint pain, and urinary frequency?

<p>Delayed food allergy (D)</p> Signup and view all the answers

What is the main allergen that causes Oral Allergy Syndrome?

<p>Bet vl 2 found in apples and birch (D)</p> Signup and view all the answers

Which test is specifically used for delayed hypersensitivity reactions?

<p>Patch tests on skin (B)</p> Signup and view all the answers

What medication can be used for the treatment of allergies according to the text?

<p><strong>Prophylactic antihistamines</strong> (B)</p> Signup and view all the answers

In the context of allergies, what do pollen allergies mainly arise from?

<p><strong>Pollen mainly from birch trees</strong> (B)</p> Signup and view all the answers

What age group tends to develop pollen allergies more frequently based on the information provided?

<p><strong>Adults</strong> (C)</p> Signup and view all the answers

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