Nursing Elites

1. What is the primary action of warfarin as an anticoagulant?

• A. Prevents the formation of blood clots
• B. Dissolves existing blood clots
• C. Dilates coronary arteries
• D. Treats rhythm disturbances

Correct answer: A

Rationale: The correct answer is A: "Prevents the formation of blood clots." Warfarin acts as an anticoagulant by inhibiting the synthesis of certain clotting factors in the liver. This action reduces the blood's ability to clot, making it effective in preventing the formation of blood clots. Choice B is incorrect because warfarin does not dissolve existing blood clots; it prevents their formation. Choice C is incorrect because warfarin's primary action is not to dilate coronary arteries. Choice D is incorrect as warfarin is not used to treat rhythm disturbances, but rather to prevent clot formation.

2. When a client is receiving treatment with methotrexate, which supplement should the nurse instruct the client to take?

• A. Folic acid
• B. Vitamin D
• C. Calcium
• D. Iron

Correct answer: A

Rationale: Folic acid supplementation is crucial for clients undergoing methotrexate treatment because methotrexate functions as a folic acid antagonist. By supplementing with folic acid, the risk of methotrexate toxicity can be minimized, improving the treatment's effectiveness and safety. Vitamin D, calcium, and iron are not specifically recommended in conjunction with methotrexate therapy and may not provide the same protective benefits as folic acid.

3. A staff educator is reviewing medication dosages and factors that influence medication metabolism with a group of nurses at an in-service presentation. Which of the following factors should the educator include as a reason to administer lower medication dosages? (Select all that apply.)

• A. Increased renal secretion
• B. Increased medication-metabolizing enzymes
• C. Liver failure
• D. Peripheral vascular disease

Correct answer: C

Rationale: Liver failure impairs metabolism, leading to increased medication concentrations. When liver function is compromised, lower dosages are necessary to prevent adverse effects. Increased renal secretion is not a reason for lower medication dosages, as it primarily affects excretion rather than metabolism. Increased medication-metabolizing enzymes would usually require higher dosages to achieve the desired effect. Peripheral vascular disease does not directly impact medication metabolism or dosage requirements.

4. A client has a new prescription for Warfarin. Which of the following statements should the nurse include in the teaching?

• A. You will need to have your blood tested regularly while taking this medication.
• B. It is safe to take over-the-counter NSAIDs with this medication.
• C. You will need to avoid foods high in vitamin K while taking this medication.
• D. You will need to take this medication with food.

Correct answer: C

Rationale: Warfarin interacts with vitamin K, so clients should be instructed to avoid foods high in vitamin K. This is because vitamin K can interfere with the anticoagulant effects of Warfarin. It is important to maintain a consistent intake of vitamin K-containing foods to keep the medication working effectively. Therefore, the correct statement for the nurse to include in the teaching is to advise the client to avoid foods high in vitamin K while taking Warfarin. Choices A, B, and D are incorrect. Regular blood testing is necessary with Warfarin to monitor its effects and adjust the dosage if needed (Choice A). Taking over-the-counter NSAIDs with Warfarin is not safe due to an increased risk of bleeding (Choice B). Warfarin can be taken with or without food, so there is no specific requirement to take it with food (Choice D).

5. A client has a new prescription for Buspirone to treat Anxiety. Which of the following information should the nurse include?

• A. Take this medication with food.
• B. Expect optimal therapeutic effects within 24 hours.
• C. Take this medication daily for anxiety.
• D. This medication has a low risk for dependency.

Correct answer: D

Rationale: The nurse should educate the client that Buspirone has a low risk for physical or psychological dependence or tolerance. This information is crucial for the client to understand the medication's safety profile and potential risks associated with long-term use.

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