warfarin is an anticoagulant that
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Nursing Elites

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ATI Pharmacology Proctored Exam 2023 Quizlet

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

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. A healthcare professional is preparing to administer morphine 4 mg IV to a client. Available is morphine 10 mg/mL. How many mL should the healthcare professional administer?

Correct answer: B

Rationale: To administer 4 mg from a solution of 10 mg/mL, the healthcare professional should administer 0.4 mL. The calculation is done by dividing the desired dose (4 mg) by the concentration of the solution (10 mg/mL), which equals 0.4 mL. Choice A (0.2 mL) is incorrect because it is half of the correct calculation. Choice C (0.6 mL) is incorrect because it is 50% more than the correct calculation. Choice D (0.8 mL) is incorrect because it exceeds the correct calculation.

3. A client has a new prescription for metronidazole. The client should avoid which of the following?

Correct answer: B

Rationale: The correct answer is B: Alcohol. Clients should avoid alcohol while taking metronidazole to prevent a disulfiram-like reaction, which can cause symptoms such as nausea, vomiting, headache, and flushing. Alcohol can interact with metronidazole and lead to adverse effects. Choices A, C, and D are not typically contraindicated with metronidazole. Dairy products, leafy green vegetables, and grapefruit juice do not have significant interactions with metronidazole, unlike alcohol.

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

Correct answer: A

Rationale: The correct statement for the nurse to include in the teaching is 'You may have a decreased desire for intimacy while taking this medication.' One of the potential adverse effects of fluoxetine and other SSRIs is a decreased desire for intimacy. It is essential for the nurse to educate the client about this possible side effect to enhance understanding and promote informed decision-making. Choices B, C, and D are incorrect because they do not relate to common side effects of Fluoxetine that the nurse should include in the teaching.

5. A client has a new prescription for Alteplase. Which of the following actions should the nurse plan to take?

Correct answer: D

Rationale: Alteplase is a thrombolytic agent used to dissolve blood clots. Patients receiving Alteplase are at risk for bleeding complications, including intracranial bleeding. Monitoring for changes in the level of consciousness is crucial as it can indicate early signs of bleeding, such as increased intracranial pressure. This rapid assessment allows for timely intervention and prevention of further complications. Choices A, B, and C are incorrect. Administering Alteplase within 4 hours of symptom onset is related to the time-sensitive nature of thrombolytic therapy for conditions like acute myocardial infarction or ischemic stroke. Reconstituting Alteplase with sterile saline is a correct step in preparing the medication for administration. Administering heparin concurrently with Alteplase is generally avoided due to the increased risk of bleeding.

Similar Questions

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