A nurse is reinforcing teaching with a client who is going to take guaifenesin, an expectorant, to help manage a cough. The nurse should explain that this type of medication treats coughs by which of the following mechanisms?
Stimulates and thins secretions
Suppresses the urge to cough
Reduces inflammation
Dries mucous membranes
The Correct Answer is A
A. Guaifenesin works as an expectorant by stimulating and thinning respiratory tract secretions, making it easier for the client to cough up and clear mucus from the airways.
B. Suppressing the urge to cough is the action of antitussive medications, not expectorants like guaifenesin.
C. Guaifenesin does not have significant anti-inflammatory properties; its primary action is on mucus clearance.
D. Drying mucous membranes is not the mechanism of action for guaifenesin; it focuses on facilitating mucus removal.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Bringing the dropper from below the client's eye is incorrect as it increases the risk of contamination from the eyelashes.
B. Holding the ophthalmic solution 1 to 2 cm (1/2 to 3/4 in) above the lower conjunctival sac allows for accurate instillation into the eye without touching the dropper tip to the eye or eyelashes.
C. Instilling drops into the inner canthus is incorrect; drops should be placed into the conjunctival sac to ensure proper absorption.
D. Asking the client to look down may help expose the lower conjunctival sac but is not the correct action for administering the drops.
Correct Answer is A
Explanation
A. Guaifenesin works as an expectorant by stimulating and thinning respiratory tract secretions, making it easier for the client to cough up and clear mucus from the airways.
B. Suppressing the urge to cough is the action of antitussive medications, not expectorants like guaifenesin.
C. Guaifenesin does not have significant anti-inflammatory properties; its primary action is on mucus clearance.
D. Drying mucous membranes is not the mechanism of action for guaifenesin; it focuses on facilitating mucus removal.
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