ATI LPN
LPN Pharmacology Practice Questions
1. The healthcare provider assesses a client who has been prescribed furosemide (Lasix) for cardiac disease. Which electrocardiographic change would be a concern for a client taking a diuretic?
- A. Tall, spiked T waves
- B. A prolonged QT interval
- C. A widening QRS complex
- D. Presence of a U wave
Correct answer: D
Rationale: The presence of a U wave is often associated with hypokalemia, a possible side effect of diuretic therapy like furosemide. Hypokalemia can lead to U wave formation on an electrocardiogram, making the presence of U waves a concerning finding in clients taking diuretics. Tall, spiked T waves are typically seen in hyperkalemia, not hypokalemia. A prolonged QT interval is more commonly associated with conditions like Long QT syndrome or certain medications, not specifically with diuretics. A widening QRS complex is usually seen in conditions affecting the conduction system of the heart, such as bundle branch blocks, rather than being directly related to diuretic use.
2. A client is admitted to the emergency department with a suspected myocardial infarction (MI). The nurse should prepare the client for which immediate diagnostic test?
- A. Chest x-ray
- B. Electrocardiogram (ECG)
- C. Echocardiogram
- D. Coronary angiography
Correct answer: B
Rationale: An Electrocardiogram (ECG) is the most immediate and essential test to diagnose a myocardial infarction (MI) and assess the extent of heart damage. An ECG can quickly identify changes in the heart's electrical activity, allowing prompt initiation of appropriate interventions. A chest x-ray (Choice A) may show other conditions affecting the heart, but it is not the immediate test of choice for diagnosing an MI. An echocardiogram (Choice C) and coronary angiography (Choice D) are valuable in further assessing cardiac function and anatomy post-MI but are not the first-line diagnostic tests due to their time-consuming nature compared to an ECG.
3. A healthcare professional is assessing a client who has a new prescription for warfarin. Which of the following findings should the healthcare professional report to the provider?
- A. Weight gain
- B. Frequent urination
- C. Hypokalemia
- D. Bleeding gums
Correct answer: D
Rationale: Bleeding gums are a sign of excessive anticoagulation with warfarin, indicating a potential risk of bleeding complications. It is crucial to report this finding promptly to the provider for further assessment and adjustment of the medication regimen to prevent serious bleeding events. Weight gain, frequent urination, and hypokalemia are not typically associated with warfarin use and are not immediate concerns that require urgent reporting to the provider.
4. A healthcare provider is providing discharge teaching to a client who has a new prescription for furosemide. Which of the following statements should the provider include?
- A. Expect muscle pain.
- B. Monitor your weight daily.
- C. Avoid consuming grapefruit juice.
- D. Increase your intake of potassium-rich foods.
Correct answer: D
Rationale: When a client is prescribed furosemide, an important consideration is preventing hypokalemia, a potential side effect of the medication. Furosemide can lead to potassium depletion, so increasing the intake of potassium-rich foods is crucial to maintain adequate potassium levels in the body. Choices A, B, and C are incorrect because muscle pain is not a common side effect of furosemide, monitoring weight daily may not be directly related to the medication, and avoiding grapefruit juice is more relevant for certain medications that interact with grapefruit juice, not furosemide.
5. The client has been prescribed warfarin (Coumadin) and is being educated about dietary restrictions. Which food should the client be advised to avoid or eat in consistent amounts?
- A. Bananas
- B. Spinach
- C. Oranges
- D. Yogurt
Correct answer: B
Rationale: Spinach is high in vitamin K, which can interfere with the effectiveness of warfarin. It is important for clients taking warfarin to maintain consistent levels of vitamin K intake to ensure the medication works properly. Foods rich in vitamin K, such as spinach, can counteract the effects of warfarin, leading to potential complications. Therefore, clients on warfarin are advised to either avoid or consume vitamin K-rich foods, like spinach, in consistent amounts to maintain the medication's efficacy. Bananas, oranges, and yogurt are not high in vitamin K and do not significantly impact the effectiveness of warfarin, making them safe options for clients taking this medication.
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