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

Answer and Explanation

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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Correct Answer is B

Explanation

A. Atropine is not used as an antidote for warfarin overdose. It is primarily used to treat bradycardia and certain types of heart block.
B. Vitamin K is the antidote for warfarin overdose. Warfarin inhibits vitamin K-dependent clotting factors, and vitamin K helps reverse its effects by promoting clotting factor synthesis in the liver.
C. Protamine is used as an antidote for heparin, not warfarin. It binds to heparin to neutralize its anticoagulant effects.
D. Epinephrine is not used as an antidote for warfarin overdose. It is primarily used in emergencies such as severe allergic reactions (anaphylaxis) or cardiac arrest.

A. Determine the client's response to the medication. B. Document that the medication was administered. C. Check the client for allergies. D. Mix the medication at the client's bedside.

Correct Answer is C

Explanation

A. Determining the client's response to the medication is important but should occur after ensuring the safety of administering the medication.
B. Documenting medication administration is necessary but should follow the safe administration process.
C. Checking the client for allergies is the first step to ensure the client can safely receive the medication, preventing adverse reactions.
D. Mixing the medication at the client's bedside may be necessary for some medications but is not the initial step in ensuring safe administration.

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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?

Nursing Test Bank

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Correct Answer is C

Explanation

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