warfarin is an anticoagulant that
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Nursing Elites

ATI RN

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 client has a new prescription for Nitroglycerin to treat angina. Which of the following instructions should be included?

Correct answer: C

Rationale: When using Nitroglycerin patches to treat angina, it is crucial to apply the patch to a different site each time. This practice helps prevent skin irritation and ensures proper absorption of the medication, optimizing its effectiveness in managing angina symptoms.

3. Which of the following conditions is not treated with Lansoprazole?

Correct answer: C

Rationale: Lansoprazole is a proton pump inhibitor used to treat conditions related to excessive stomach acid production, such as Zollinger-Ellison syndrome, gastritis, and reflux. However, it is not indicated for the treatment of hypertension, which is managed using antihypertensive medications. Therefore, the correct answer is C: Hypertension.

4. A healthcare provider is providing teaching to a client who is starting therapy with paclitaxel. Which of the following adverse effects should the healthcare provider instruct the client to monitor?

Correct answer: C

Rationale: The correct answer is C: Neutropenia. Paclitaxel commonly causes neutropenia due to bone marrow suppression. It is essential for clients receiving this medication to monitor for signs of neutropenia, such as fever, chills, and increased susceptibility to infections, as it can increase the risk of serious complications.

5. What is the antidote for Heparin?

Correct answer: A

Rationale: The correct answer is A: Protamine sulfate. Heparin is an anticoagulant medication used to prevent blood clots. In cases of overdose or excessive bleeding due to Heparin, protamine sulfate is administered as the specific antidote. Protamine sulfate works by neutralizing Heparin's anticoagulant activity. Choices B, C, and D are incorrect. Narcan (Naloxone) is used to reverse opioid overdose, Romazicon (Flumazenil) is used to reverse benzodiazepine overdose, and Naloxone is also used to reverse opioid overdose but is not the antidote for Heparin.

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