ATI LPN
LPN Pharmacology Practice Test
1. A client has been taking levothyroxine for 6 months. Which of the following findings indicates that the medication is effective?
- A. Weight gain
- B. Increased heart rate
- C. Decreased TSH levels
- D. Elevated blood pressure
Correct answer: C
Rationale: In a client taking levothyroxine for thyroid hormone replacement, decreased TSH levels indicate that the medication is effective. TSH levels decrease as the thyroid hormone levels are adequately replaced by levothyroxine, signaling a positive response to treatment. Choices A, B, and D are incorrect because weight gain, increased heart rate, and elevated blood pressure are not expected findings indicating the effectiveness of levothyroxine therapy. Weight gain may suggest inadequate dosing, while increased heart rate and elevated blood pressure could indicate over-replacement or side effects of the medication.
2. When providing teaching to a client with a new prescription for atorvastatin, which of the following instructions should the nurse include?
- A. Take the medication in the evening.
- B. Take the medication with food.
- C. Increase your intake of grapefruit juice.
- D. Avoid consuming dairy products.
Correct answer: A
Rationale: The correct instruction for a client with a new prescription for atorvastatin is to take the medication in the evening. Atorvastatin is more effective when taken at night because cholesterol synthesis is higher during this time. This timing helps optimize the drug's cholesterol-lowering effects and enhances its overall efficacy in managing lipid levels. Choices B, C, and D are incorrect. Taking atorvastatin with food can decrease its absorption, grapefruit juice can interact with atorvastatin leading to increased side effects, and there is no specific need to avoid dairy products while on atorvastatin unless instructed otherwise by the healthcare provider.
3. The client is being ambulated due to activity intolerance caused by bacterial endocarditis. How can the nurse determine that the client is best tolerating ambulation?
- A. Mild dyspnea after walking 10 feet
- B. Minimal chest pain rated 1 on a 1-to-10 pain scale
- C. Pulse rate that increases from 68 to 94 beats per minute
- D. Blood pressure that increases from 114/82 to 118/86 mm Hg
Correct answer: D
Rationale: A slight increase in blood pressure without significant symptoms indicates that the client is tolerating the activity. In this scenario, a mild increase in blood pressure without other symptoms is a positive sign of tolerance to ambulation despite the underlying condition of bacterial endocarditis. Choices A, B, and C are not the best indicators of tolerance to ambulation in this case. Mild dyspnea after walking a short distance, minimal chest pain, and an increase in pulse rate are common signs that the activity might not be well-tolerated by the client with a history of bacterial endocarditis.
4. A client has a new prescription for allopurinol. Which of the following instructions should the nurse include?
- A. Take the medication with food.
- B. Increase your fluid intake.
- C. Avoid consuming dairy products.
- D. Take the medication in the morning.
Correct answer: B
Rationale: Increasing fluid intake is essential when taking allopurinol to prevent the formation of kidney stones. Allopurinol can increase the levels of uric acid in the body, which can lead to kidney stone formation. By increasing fluid intake, the client can help flush out excess uric acid and prevent the development of kidney stones. It is important to drink plenty of water throughout the day to maintain adequate hydration and reduce the risk of kidney stone formation. Choices A, C, and D are incorrect. Taking allopurinol with food or in the morning does not specifically relate to preventing kidney stone formation. Avoiding dairy products is not a standard recommendation when taking allopurinol.
5. A client receives discharge teaching for a new prescription of lithium. Which instruction should be included?
- A. Take the medication with food.
- B. Increase your intake of sodium.
- C. Monitor for signs of hypercalcemia.
- D. Avoid consuming dairy products.
Correct answer: B
Rationale: The correct instruction to include when a client receives discharge teaching for a new prescription of lithium is to increase their intake of sodium. Lithium can lead to decreased sodium levels, putting the individual at risk of developing hyponatremia. By increasing sodium intake, the client can counteract this risk, maintain a proper sodium balance, and prevent complications. Choices A, C, and D are incorrect because taking lithium with food, monitoring for signs of hypercalcemia, and avoiding dairy products are not directly related to managing the side effects or risks associated with lithium therapy.
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