ATI LPN
LPN Pharmacology Practice Test
1. A client has a new prescription for levothyroxine. Which of the following instructions should the nurse include?
- A. Take the medication on an empty stomach.
- B. Take the medication with food.
- C. Take the medication at bedtime.
- D. Take the medication with an antacid.
Correct answer: A
Rationale: The correct answer is A: 'Take the medication on an empty stomach.' Levothyroxine should be taken on an empty stomach to ensure optimal absorption. Food, especially high-fiber foods, can interfere with the absorption of levothyroxine. Taking it with an antacid or at bedtime may also affect its absorption. Instructing the client to take the medication on an empty stomach will help maintain consistent blood levels of levothyroxine. Choice B is incorrect as taking levothyroxine with food can reduce its absorption. Choice C is incorrect because taking levothyroxine at bedtime may lead to inconsistent blood levels due to food intake during the day. Choice D is incorrect as antacids can interfere with the absorption of levothyroxine.
2. The client with a history of heart failure is receiving digoxin (Lanoxin). Which electrolyte imbalance increases the risk of digoxin toxicity?
- A. Hypernatremia
- B. Hypercalcemia
- C. Hypokalemia
- D. Hypomagnesemia
Correct answer: C
Rationale: Hypokalemia increases the risk of digoxin toxicity as low potassium levels enhance the effects of digoxin on the heart, leading to toxicity and potential adverse effects. Hypernatremia (Choice A) is not directly associated with an increased risk of digoxin toxicity. Hypercalcemia (Choice B) does not increase the risk of digoxin toxicity. Hypomagnesemia (Choice D) can contribute to digoxin toxicity, but hypokalemia has a more significant impact on increasing the risk.
3. Which statement indicates that a client with coronary artery disease (CAD) understands disease management?
- A. I will walk for one-half hour daily.
- B. As long as I exercise, I can eat anything I wish.
- C. My weight plays no role in this disease.
- D. My father's high cholesterol is irrelevant.
Correct answer: A
Rationale: Choice A is the correct answer because regular physical activity, such as walking for half an hour daily, is beneficial for managing coronary artery disease (CAD) and promoting heart health. Walking helps improve circulation, reduce cholesterol levels, and maintain a healthy weight, all of which are crucial for managing CAD. Choice B is incorrect because diet also plays a significant role in CAD management, not just exercise. Choice C is incorrect because weight management is essential in controlling CAD risk factors. Choice D is incorrect because family history of high cholesterol can increase the risk of CAD, making it relevant for disease management.
4. The client is starting therapy with digoxin (Lanoxin). What instruction should the nurse reinforce about the medication?
- A. Take the medication with meals.
- B. Avoid dairy products.
- C. Monitor for yellow or blurred vision.
- D. Increase potassium-rich foods in the diet.
Correct answer: C
Rationale: The correct answer is C: 'Monitor for yellow or blurred vision.' When a client is taking digoxin, it is crucial to monitor for signs of toxicity, such as yellow or blurred vision, as these can indicate an adverse reaction. Reporting these visual disturbances promptly to the healthcare provider is important for further evaluation and management to prevent potential complications. Choices A, B, and D are incorrect because taking digoxin with meals, avoiding dairy products, or increasing potassium-rich foods are not specific instructions related to monitoring for adverse effects of digoxin therapy.
5. The patient with a history of myocardial infarction (MI) is prescribed aspirin. What instruction should the nurse include in the discharge teaching?
- A. Take the aspirin with food to prevent gastrointestinal upset
- B. Discontinue the aspirin if experiencing ringing in the ears
- C. Take the aspirin at bedtime to minimize side effects
- D. Avoid taking aspirin if also taking other NSAIDs
Correct answer: A
Rationale: Taking aspirin with food is recommended to prevent gastrointestinal irritation and upset, which are common side effects of aspirin. It helps protect the stomach lining and reduce the risk of developing ulcers. This instruction is crucial in promoting medication adherence and minimizing discomfort for the patient. Choices B, C, and D are incorrect because discontinuing aspirin without consulting a healthcare provider, taking it at bedtime, or avoiding it if taking other NSAIDs can have negative consequences on the patient's health and treatment plan.
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