ATI RN
ATI Pharmacology Proctored Exam 2023 Quizlet
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. A client has a new prescription for Verapamil to treat angina. Which of the following client statements should indicate to the nurse that the client is experiencing an adverse effect of Verapamil?
- A. I am frequently constipated.
- B. I have been urinating more frequently.
- C. My skin is peeling.
- D. I have ringing in my ears.
Correct answer: A
Rationale: The correct answer is A: 'I am frequently constipated.' Constipation is a common adverse effect of Verapamil, a calcium channel blocker. Verapamil can slow down intestinal motility, leading to constipation as a side effect. Choices B, C, and D are not typically associated with adverse effects of Verapamil. Increased urination is not a common side effect, skin peeling is not related to Verapamil use, and ringing in the ears is not a typical adverse effect of this medication.
3. A client is starting Simvastatin. Which of the following information should be included in the teaching?
- A. Take this medication in the evening.
- B. Change positions slowly when rising from a chair.
- C. Maintain a steady intake of green leafy vegetables.
- D. Consume no more than 1 L/day of fluid.
Correct answer: A
Rationale: The correct answer is to take simvastatin in the evening. This timing is recommended because nighttime is when the most cholesterol is synthesized in the body. By taking statin medications in the evening, it can enhance their effectiveness in reducing cholesterol levels.
4. A client is prescribed an IM dose of penicillin. She reports developing a rash after taking penicillin 3 years ago. What action should the healthcare professional take?
- A. Administer the prescribed dose.
- B. Withhold the medication.
- C. Ask the provider to change the prescription to an oral form.
- D. Administer an oral antihistamine at the same time.
Correct answer: B
Rationale: The healthcare professional should withhold the medication and notify the provider of the client's previous reaction to penicillin. It is crucial to report any past allergic reactions to medications, as this information guides the provider in prescribing a safe alternative. Administering the prescribed dose without considering the client's history of developing a rash can lead to potentially severe adverse reactions. Changing the prescription to an oral form or administering an oral antihistamine does not address the risk of an allergic reaction to penicillin in this case.
5. When educating a client starting a new prescription for metoprolol, which instruction should the nurse include?
- A. Check your pulse before taking the medication.
- B. Take the medication with food to increase absorption.
- C. Avoid sudden changes in position.
- D. Monitor your blood pressure regularly.
Correct answer: C
Rationale: The correct instruction for a client starting metoprolol is to avoid sudden changes in position. Metoprolol can cause dizziness due to its blood pressure-lowering effects, increasing the risk of falls and injury. Instructing the client to change positions slowly helps prevent orthostatic hypotension and related adverse events. Checking the pulse before taking the medication (Choice A) is not typically necessary for metoprolol. Taking the medication with food (Choice B) is not required for absorption and can be taken with or without food. Monitoring blood pressure regularly (Choice D) is essential for clients taking metoprolol, but avoiding sudden changes in position is more critical to prevent dizziness and falls.
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