ATI RN
ATI Pharmacology Quizlet
1. A healthcare professional is preparing to administer Haloperidol 2 mg PO every 12 hr. The available medication is haloperidol 1 mg/tablet. How many tablets should the healthcare professional administer?
- A. 1 tablet
- B. 2 tablets
- C. 3 tablets
- D. 4 tablets
Correct answer: B
Rationale: To calculate the number of tablets needed, divide the desired dose by the dose per tablet. In this case, (2 mg / 1 mg/tablet) = 2 tablets required to administer the correct dosage of Haloperidol.
2. A client has a new prescription for Atenolol. Which of the following instructions should be included by the healthcare provider?
- A. Take this medication in the morning.
- B. Monitor your heart rate regularly.
- C. Avoid foods high in potassium.
- D. Increase your fluid intake.
Correct answer: B
Rationale: The correct answer is B. Atenolol is a beta-blocker that can cause bradycardia, leading to a decreased heart rate. Monitoring heart rate regularly is essential to detect any significant decreases promptly and seek medical attention. While choices A, C, and D may be relevant to the client's overall health, monitoring heart rate is the priority instruction due to the nature of Atenolol's effects. Taking the medication in the morning can be individualized based on the client's needs and preferences. Avoiding foods high in potassium and increasing fluid intake are generally beneficial but not directly related to managing the side effects of Atenolol.
3. A client has a prescription for Alendronate. Which of the following instructions should the nurse include?
- A. Take this medication before bed.
- B. Take the medication with food.
- C. Sit upright for at least 30 minutes after taking the medication.
- D. Expect to have frequent headaches while on this medication.
Correct answer: C
Rationale: The correct instruction for a client prescribed Alendronate is to sit upright for at least 30 minutes after taking the medication. Alendronate can cause esophageal irritation, and maintaining an upright position helps prevent this adverse effect by reducing the risk of reflux of the medication into the esophagus. Choice A is incorrect because Alendronate should be taken in the morning, at least 30 minutes before the first food, beverage, or medication of the day with a full glass of plain water. Choice B is incorrect because Alendronate should not be taken with food. Choice D is incorrect because frequent headaches are not a common side effect of Alendronate.
4. A client has a new prescription for Hydrochlorothiazide. Which of the following information should the nurse include?
- A. Take the medication with food.
- B. Plan to take the medication at bedtime.
- C. Expect increased swelling of the ankles.
- D. Fluid intake should be limited in the morning.
Correct answer: A
Rationale: The correct answer is to take the medication with food. Hydrochlorothiazide should be taken with or after meals to prevent gastrointestinal upset. Taking it with food can help reduce the chances of stomach discomfort or nausea. It is not necessary to take the medication at bedtime, expect increased swelling of the ankles, or limit fluid intake in the morning when taking Hydrochlorothiazide. Therefore, choices B, C, and D are incorrect.
5. A client prescribed Warfarin is receiving discharge instructions from a nurse. Which of the following herbal supplements should the nurse instruct the client to avoid?
- A. St. John's wort
- B. Echinacea
- C. Garlic
- D. Ginseng
Correct answer: A
Rationale: St. John's wort can reduce the effectiveness of Warfarin by interacting with its metabolism pathways, potentially leading to decreased anticoagulant effects. Therefore, clients on Warfarin therapy should avoid St. John's wort. While echinacea, garlic, and ginseng are also herbal supplements that can interact with Warfarin, St. John's wort is particularly known for its significant impact on Warfarin metabolism. Echinacea may increase the risk of bleeding when taken with Warfarin, garlic may potentiate the anticoagulant effects of Warfarin, and ginseng may also increase the risk of bleeding. However, St. John's wort is the most crucial to avoid due to its significant impact on Warfarin metabolism.
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