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. A client has a new prescription for propranolol. Which of the following instructions should be included?
- A. Take the medication with food.
- B. Monitor heart rate daily.
- C. Increase intake of potassium-rich foods.
- D. Avoid consuming dairy products.
Correct answer: B
Rationale: The correct answer is to monitor heart rate daily. Propranolol is a beta-blocker that can lower heart rate and blood pressure, so it is essential to monitor heart rate regularly to detect any signs of bradycardia, a potential side effect of the medication. Choice A is incorrect because propranolol can be taken with or without food. Choice C is incorrect as increasing potassium-rich foods is not specifically required with propranolol. Choice D is also incorrect as there is no need to avoid consuming dairy products with propranolol.
3. The LPN/LVN is assisting in caring for a client in the telemetry unit and is monitoring the client for cardiac changes indicative of hypokalemia. Which occurrence noted on the cardiac monitor indicates the presence of hypokalemia?
- A. Tall, peaked T waves
- B. ST-segment depression
- C. Prolonged P-R interval
- D. Widening of the QRS complex
Correct answer: B
Rationale: ST-segment depression can indicate hypokalemia, affecting the heart's electrical conduction. Hypokalemia leads to alterations in the repolarization phase of the cardiac action potential, resulting in ST-segment depression on the ECG. Tall, peaked T waves are indicative of hyperkalemia, not hypokalemia. A prolonged P-R interval is more commonly associated with first-degree heart block. Widening of the QRS complex is typically seen in conditions like bundle branch blocks or ventricular tachycardia, not specifically in hypokalemia.
4. A client with myocardial infarction (MI) has been transferred from the coronary care unit (CCU) to the general medical unit with cardiac monitoring via telemetry. The nurse assisting in caring for the client expects to note which type of activity prescribed?
- A. Strict bed rest for 24 hours
- B. Bathroom privileges and self-care activities
- C. Unrestricted activities because the client is monitored
- D. Unsupervised hallway ambulation with distances less than 200 feet
Correct answer: B
Rationale: After being transferred from the CCU to the general medical unit with cardiac monitoring, the client with MI is typically prescribed bathroom privileges and self-care activities. This approach allows for gradual recovery and mobility while still being closely monitored, promoting the client's overall well-being and independence. Choice A, strict bed rest for 24 hours, is too restrictive and not recommended for MI patients as it can lead to complications like deep vein thrombosis. Choice C, unrestricted activities, is also not appropriate as MI patients usually require monitoring and gradual re-introduction to activities. Choice D, unsupervised hallway ambulation with distances less than 200 feet, may be too strenuous for a client who just got transferred from the CCU and needs a more gradual approach to activity.
5. A nurse is assessing a client who has been taking phenytoin for epilepsy. Which of the following findings should the nurse report to the provider?
- A. Weight loss
- B. Gingival hyperplasia
- C. Increased thirst
- D. Frequent urination
Correct answer: B
Rationale: The correct answer is B: Gingival hyperplasia. Phenytoin is known to cause gingival hyperplasia, an overgrowth of gum tissue, which can lead to oral health issues and requires dental care. Choices A, C, and D are not directly associated with phenytoin use. Weight loss, increased thirst, and frequent urination are not typically reported findings related to phenytoin and should not be prioritized over gingival hyperplasia when assessing a client taking this medication.
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