Podcast
Questions and Answers
What is the mechanism of action of histamine on H1 receptors?
What is the mechanism of action of histamine on H1 receptors?
- Bronchodilatation (correct)
- Vasodilation
- Vasoconstriction
- Increased cardiac contractility
Which receptor subtype does epinephrine act on to induce vasoconstriction in anaphylaxis?
Which receptor subtype does epinephrine act on to induce vasoconstriction in anaphylaxis?
- Beta2-adrenoceptors
- Histamine receptors
- Alpha-adrenoceptors (correct)
- Beta1-adrenoceptors
Why is epinephrine considered life-saving in the treatment of anaphylaxis?
Why is epinephrine considered life-saving in the treatment of anaphylaxis?
- It stimulates vasoconstriction (correct)
- It induces bronchospasm
- It inhibits histamine release
- It increases vascular leakage
How are allergic diseases diagnosed according to the text?
How are allergic diseases diagnosed according to the text?
Which drug is administered to inhibit vasodilation, vascular leakage, and bronchospasm during anaphylaxis?
Which drug is administered to inhibit vasodilation, vascular leakage, and bronchospasm during anaphylaxis?
What is the primary function of beta2 adrenoceptor agonists during anaphylaxis?
What is the primary function of beta2 adrenoceptor agonists during anaphylaxis?
Which receptor type is responsible for causing bronchoconstriction in hypersensitivity type I reactions?
Which receptor type is responsible for causing bronchoconstriction in hypersensitivity type I reactions?
In allergic reactions, which molecule stored in mast cell granules acts on specific histamine receptors?
In allergic reactions, which molecule stored in mast cell granules acts on specific histamine receptors?
Anaphylactic reactions are mediated by which type of antibodies?
Anaphylactic reactions are mediated by which type of antibodies?
What is the central role of histamine in mild allergic reactions?
What is the central role of histamine in mild allergic reactions?
Which symptom is NOT commonly associated with anaphylaxis?
Which symptom is NOT commonly associated with anaphylaxis?
What happens when allergen cross-links IgE on mast cells during hypersensitivity type I reactions?
What happens when allergen cross-links IgE on mast cells during hypersensitivity type I reactions?
Which of the following is a characteristic of 'inverse agonists'?
Which of the following is a characteristic of 'inverse agonists'?
Which type of anti-histamines are known for exhibiting additional anti-inflammatory effects?
Which type of anti-histamines are known for exhibiting additional anti-inflammatory effects?
What is a common adverse effect associated with topical calcineurin inhibitors like Tacrolimus?
What is a common adverse effect associated with topical calcineurin inhibitors like Tacrolimus?
Which of the following statements about Terfenadine is true?
Which of the following statements about Terfenadine is true?
Which of the following anti-histamines is NOT a second-generation type?
Which of the following anti-histamines is NOT a second-generation type?
What makes Loratadine distinct from other anti-histamines in terms of crossing the blood-brain barrier?
What makes Loratadine distinct from other anti-histamines in terms of crossing the blood-brain barrier?
