the nurse is caring for a client who has a diagnosis of atrial fibrillation and is receiving warfarin coumadin therapy which laboratory test should th
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Nursing Elites

ATI LPN

LPN Pharmacology Practice Questions

1. The client has atrial fibrillation and is receiving warfarin (Coumadin) therapy. Which laboratory test should be monitored to evaluate the effectiveness of the warfarin therapy?

Correct answer: A

Rationale: Monitoring the Prothrombin time (PT) and international normalized ratio (INR) is crucial for assessing the effectiveness of warfarin therapy. These tests help determine the clotting ability of the blood and ensure that the client is within the desired therapeutic range to prevent clotting events or bleeding complications. Activated partial thromboplastin time (aPTT) (Choice B) is more commonly used to monitor heparin therapy, not warfarin. Complete blood count (CBC) (Choice C) and fibrinogen levels (Choice D) do not directly assess the effectiveness of warfarin therapy in the same way that PT and INR do.

2. The healthcare provider is reinforcing teaching for a client who is starting statin therapy. Which dietary advice should the healthcare provider give?

Correct answer: C

Rationale: The correct answer is C: Avoid grapefruit and grapefruit juice. Grapefruit and grapefruit juice can interfere with the metabolism of statins, leading to an increased risk of adverse effects. It is crucial for clients on statin therapy to avoid grapefruit products to ensure the medication's effectiveness and safety. Choices A, B, and D are incorrect because they do not directly impact the metabolism or effectiveness of statin therapy.

3. A client has a new prescription for clozapine. Which of the following instructions should the nurse include?

Correct answer: A

Rationale: The correct answer is A: 'You should have your white blood cell count checked regularly.' Clozapine can lead to agranulocytosis, a serious condition characterized by a low white blood cell count. Regular monitoring of the white blood cell count is crucial to detect this adverse effect early and prevent serious complications. Choices B, C, and D are incorrect because taking clozapine on an empty stomach, avoiding foods high in tyramine, or avoiding taking the medication with milk are not specific instructions related to the potential adverse effect of agranulocytosis associated with clozapine.

4. A client with a history of angina pectoris complains of substernal chest pain. The nurse checks the client's blood pressure and administers nitroglycerin 0.4 mg sublingually. Five minutes later, the client is still experiencing chest pain. If the blood pressure is still stable, what should the nurse do next?

Correct answer: A

Rationale: When a client with angina pectoris continues to experience chest pain despite initial nitroglycerin administration and stable blood pressure, the appropriate next step is to administer another nitroglycerin tablet. This helps to further dilate coronary arteries, improving blood flow to the heart muscle and relieving chest pain. Applying oxygen via nasal cannula (Choice B) may be necessary if the client displays signs of respiratory distress or hypoxemia, but in this case, the priority is addressing the unresolved chest pain. Calling for a 12-lead electrocardiogram (ECG) (Choice C) is important to assess for any changes in the client's cardiac status, but administering another nitroglycerin tablet takes precedence in managing the ongoing chest pain. Waiting an additional 5 minutes before giving a second nitroglycerin tablet (Choice D) may delay symptom relief and potentially worsen the client's condition if the chest pain persists.

5. When providing teaching to a client with a new prescription for atorvastatin, which of the following instructions should the nurse include?

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.

Similar Questions

A client with chronic obstructive pulmonary disease (COPD) is prescribed theophylline. Which adverse effect should the nurse monitor for that indicates toxicity?
The client with atrial fibrillation is receiving warfarin (Coumadin). Which laboratory test should be monitored to determine the effectiveness of the therapy?
The nurse is assisting in the care of a client with a history of chronic obstructive pulmonary disease (COPD) who is on oxygen therapy. Which action should the nurse take to ensure the client's safety?
A client with heart failure is prescribed an angiotensin-converting enzyme (ACE) inhibitor. The nurse should reinforce which instruction?
A client is scheduled for a coronary artery bypass graft (CABG) surgery. The nurse should prepare the client by reinforcing information about which post-operative care measure?

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