ATI LPN
Pharmacology for LPN
1. The client is receiving furosemide (Lasix) for heart failure. What potential side effect should the nurse monitor for?
- A. Hypokalemia
- B. Hyperkalemia
- C. Hypernatremia
- D. Hypoglycemia
Correct answer: A
Rationale: The correct answer is A: Hypokalemia. Furosemide, a loop diuretic, causes potassium loss, leading to hypokalemia. Monitoring potassium levels is crucial because hypokalemia can result in cardiac arrhythmias and muscle weakness. Choices B, C, and D are incorrect because furosemide does not typically cause hyperkalemia, hypernatremia, or hypoglycemia.
2. A healthcare professional is assessing a client who has been taking lithium carbonate for bipolar disorder. Which of the following findings should the professional report to the provider?
- A. Increased urination
- B. Tremors
- C. Weight gain
- D. Blurred vision
Correct answer: B
Rationale: Tremors are a concerning sign of lithium toxicity that indicate a potential overdose. Tremors can progress to more severe symptoms if not addressed promptly. Reporting tremors promptly allows the provider to assess the client's lithium levels, adjust the dosage, or provide appropriate interventions to prevent further complications. Increased urination, weight gain, and blurred vision are potential side effects of lithium but are not indicative of toxicity or overdose. While they should still be monitored, they are not as urgent as tremors in the context of lithium therapy.
3. A client with atrial fibrillation is receiving warfarin (Coumadin). The nurse should reinforce which instruction?
- A. Avoid foods high in vitamin K.
- B. Increase intake of dairy products.
- C. Limit intake of high-fiber foods.
- D. Avoid protein-rich foods.
Correct answer: A
Rationale: The correct answer is A: Avoid foods high in vitamin K. Clients taking warfarin need to be cautious with their vitamin K intake because vitamin K can counteract the effects of the medication. Therefore, it is essential to avoid foods high in vitamin K to maintain the therapeutic effects of warfarin. Choice B is incorrect because increasing dairy product intake is not specifically related to warfarin therapy. Choice C is incorrect as high-fiber foods do not interfere with warfarin therapy. Choice D is incorrect as protein-rich foods are not contraindicated with warfarin therapy.
4. 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.
5. A client with atrial fibrillation is prescribed warfarin (Coumadin). The nurse should reinforce which dietary instruction?
- A. Avoid foods high in vitamin K.
- B. Increase intake of dairy products.
- C. Limit intake of foods high in fiber.
- D. Increase protein intake.
Correct answer: A
Rationale: The correct answer is to avoid foods high in vitamin K. Clients taking warfarin (Coumadin) should maintain a consistent intake of vitamin K to keep the medication's effectiveness stable. Foods high in vitamin K, such as leafy greens, can interfere with the anticoagulant effects of warfarin. Therefore, it is crucial for clients to avoid these foods to ensure the therapeutic effects of warfarin. Choices B, C, and D are incorrect because increasing dairy products, limiting fiber intake, or increasing protein intake do not directly impact the effectiveness of warfarin therapy and are not necessary dietary modifications for clients on this medication.
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