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. At the time of documentation B. In the area where the nurse obtained the medication C. In the nurses' station while reviewing the provider's prescription D. At the client's bedside before administration

Correct Answer is D

Explanation

A. Performing the final medication check at the time of documentation may result in errors if there are discrepancies between the prescription and what is documented.
B. Checking the medication in the area where it was obtained may not ensure accuracy regarding patient identity, dose, or route before administration.
C. Reviewing the provider's prescription at the nurses' station is important but should not replace the final bedside check immediately before administration.
D. Performing the final medication check at the client's bedside ensures accuracy and patient safety by verifying the correct medication, dose, route, and patient identity directly before 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?

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Naxlex Comprehensive Predictor Exams

A nurse is caring for a client who is receiving warfarin therapy to prevent a deep vein thrombosis. Which of the following medications should the nurse have available in the event of an overdose?

Correct Answer is B

Explanation

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Correct Answer is D

Explanation

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