A parent asks a nurse about giving diphenhydramine (Benadryl) to ...

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A parent asks a nurse about giving diphenhydramine (Benadryl) to a child to relieve cold symptoms. Which response by the nurse is correct?
 
  a. Benadryl must be given in higher doses to provide relief for cold symptoms.
  b. Intranasal glucocorticoids are more effective for treating cold symptoms.
  c. Nasal antihistamines are more effective for treating cold symptoms.
  d. Because histamine doesn't cause cold symptoms, Benadryl would not be effective.

Question 2

A patient who has seasonal allergies in the spring and fall asks the nurse about oral antihistamines. Which response by the nurse is correct?
 
  a. Anticholinergic effects are more common with second-generation antihistamines.
  b. First-generation antihistamines, such as diphenhydramine (Benadryl), are more effective.
  c. Make sure you take antihistamines only when you have symptoms to minimize side effects.
  d. You should take oral antihistamines daily during each allergy season to get maximum effects.

[joneynes]

Answer to Question 1

ANS: D
Histamine does not contribute to symptoms of infectious rhinitis; therefore, antihistamines are of no use in treating cold symptoms. Giving antihistamines in higher doses does not provide relief for infectious rhinitis. Intranasal glucocorticoids are not useful for infectious rhinitis. Nasal antihistamines are not effective for treating infectious rhinitis.

Answer to Question 2

ANS: D
Antihistamines are most effective when they are taken prophylactically, and they should be administered on a regular basis throughout the allergy season, even when symptoms are not present. Second-generation antihistamines have fewer anticholinergic effects than first-generation antihistamines. First-generation antihistamines are not more effective than second-generation antihistamines. Oral antihistamines are not as effective when given on a PRN basis.

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[joneynes]

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