Question

the nurse is visiting a client in their home for treatment of a wound. the client is concerned that their spouse, a truck driver, is bothered by seasonal allergies. a friend suggested diphenhydramine. what is the nurses best response?

\the drug may exacerbate the allergies if used routinely.\
\the drug is safe if it is purchased over the counter.\
\the drug may cause drowsiness and make driving unsafe.\
\the drug is safe in small doses.\

Explanation:

Analyze client scenario and drug

The client's spouse is a truck driver suffering from seasonal allergies, and a friend suggested diphenhydramine. Diphenhydramine is a first-generation antihistamine.

Identify drug side effects

First-generation antihistamines like diphenhydramine readily cross the blood-brain barrier and cause significant central nervous system depression, leading to drowsiness, sedation, and impaired psychomotor performance.

Evaluate safety for occupation

Operating heavy machinery or driving a commercial truck requires high alertness. Because diphenhydramine causes drowsiness, it is highly unsafe for a truck driver to take while working.

Assess the options

• "The drug may exacerbate the allergies if used routinely." (Incorrect: It treats allergies, though tolerance can occur, exacerbation is not the primary concern).
• "The drug is safe if it is purchased over the counter." (Incorrect: Over-the-counter Drugs are not inherently safe for all individuals or occupations).
• "The drug may cause drowsiness and make driving unsafe." (Correct: Directly addresses the safety risk for a truck driver).
• "The drug is safe in small doses." (Incorrect: Even small doses can cause drowsiness and impair driving performance).

Answer:

• "The drug may exacerbate the allergies if used routinely."
• "The drug is safe if it is purchased over the counter."
• "The drug may cause drowsiness and make driving unsafe." (Correct answer)
• "The drug is safe in small doses."