Podcast
Questions and Answers
What is the primary mechanism of action of antihistamine drugs?
What is the primary mechanism of action of antihistamine drugs?
- Binding to histamine receptors on nerve endings
- Preventing the synthesis of histamine molecules
- Competing with histamine for unoccupied receptors on basophils and mast cells (correct)
- Pushing off histamine already bound to a receptor
When are antihistamines most beneficial in a histamine-mediated reaction?
When are antihistamines most beneficial in a histamine-mediated reaction?
- After all free histamine molecules bind to cell membrane receptors
- When all histamine molecules are already bound to receptors
- During the release of histamine from basophils and mast cells
- Before all free histamine molecules bind to cell membrane receptors (correct)
Which of the following is NOT a consequence of histamine binding that is prevented by H1 blockers?
Which of the following is NOT a consequence of histamine binding that is prevented by H1 blockers?
- Decreased capillary permeability (correct)
- Vasodilation
- Increased GI secretions
- Increased salivary secretions
What are antihistamines indicated for the treatment of?
What are antihistamines indicated for the treatment of?
What is a contraindication for the use of antihistamines?
What is a contraindication for the use of antihistamines?
How do antihistamines affect the release and actions of histamine stored within basophils and mast cells?
How do antihistamines affect the release and actions of histamine stored within basophils and mast cells?
What are the common adverse effects of benzonatate?
What are the common adverse effects of benzonatate?
Which antitussive drug is classified as a pregnancy category C drug?
Which antitussive drug is classified as a pregnancy category C drug?
What are the common adverse effects of codeine and hydrocodone?
What are the common adverse effects of codeine and hydrocodone?
How does benzonatate work as an antitussive drug?
How does benzonatate work as an antitussive drug?
Which antitussive is commonly available over-the-counter (OTC)?
Which antitussive is commonly available over-the-counter (OTC)?
What is a potential drug interaction associated with opioid antitussives like codeine and hydrocodone?
What is a potential drug interaction associated with opioid antitussives like codeine and hydrocodone?
How do nasal decongestants primarily work?
How do nasal decongestants primarily work?
Which of the following is not a commonly used intranasal steroid?
Which of the following is not a commonly used intranasal steroid?
Which of the following drugs is an intranasal anticholinergic?
Which of the following drugs is an intranasal anticholinergic?
What is the primary purpose of using intranasal steroids?
What is the primary purpose of using intranasal steroids?
Why are nasal decongestants referred to as sympathomimetics?
Why are nasal decongestants referred to as sympathomimetics?
What is the mechanism of action of adrenergic drugs like ephedrine and oxymetazoline?
What is the mechanism of action of adrenergic drugs like ephedrine and oxymetazoline?
Which of the following statements about codeine-containing cough suppressants is true?
Which of the following statements about codeine-containing cough suppressants is true?
What is the pregnancy category classification of codeine?
What is the pregnancy category classification of codeine?
What characteristic makes dextromethorphan different from codeine when used in recommended dosages?
What characteristic makes dextromethorphan different from codeine when used in recommended dosages?
In what dosage forms is dextromethorphan available?
In what dosage forms is dextromethorphan available?
What patient condition is a contraindication for using dextromethorphan?
What patient condition is a contraindication for using dextromethorphan?
What is the most significant difference between codeine and dextromethorphan in terms of potential abuse?
What is the most significant difference between codeine and dextromethorphan in terms of potential abuse?
What is a contraindication for inhaled intranasal steroids?
What is a contraindication for inhaled intranasal steroids?
What is an important aspect to include in the assessment when using decongestants?
What is an important aspect to include in the assessment when using decongestants?
What is a common side effect associated with antitussive therapy?
What is a common side effect associated with antitussive therapy?
What additional aspect might the prescriber order for individuals with chronic respiratory disease before prescribing certain drugs?
What additional aspect might the prescriber order for individuals with chronic respiratory disease before prescribing certain drugs?
What is used to provide more information during the assessment in addition to respiratory parameters?
What is used to provide more information during the assessment in addition to respiratory parameters?
Which of the following is a potential drug interaction to assess for when administering certain medications?
Which of the following is a potential drug interaction to assess for when administering certain medications?
