Nursing Elites

1. A client with atrial fibrillation is receiving warfarin (Coumadin). The nurse should monitor which laboratory test to determine the effectiveness of the therapy?

• A. Prothrombin time (PT) and international normalized ratio (INR)
• B. Activated partial thromboplastin time (aPTT)
• C. Complete blood count (CBC)
• D. Fibrinogen level

Correct answer: A

Rationale: To monitor the effectiveness of warfarin therapy in a client with atrial fibrillation, the nurse should assess the Prothrombin time (PT) and international normalized ratio (INR) levels. These tests help determine the clotting ability of the blood and ensure that the client's anticoagulation levels are within the therapeutic range, reducing the risk of bleeding or clotting complications. Activated partial thromboplastin time (aPTT) (Choice B) is more commonly used to monitor heparin therapy. Complete blood count (CBC) (Choice C) provides information about the cellular components of blood but does not directly assess the effectiveness of warfarin therapy. Fibrinogen level (Choice D) is not typically used to monitor warfarin therapy; it reflects the level of fibrinogen in the blood, which is involved in the clotting process.

2. The healthcare provider has reinforced dietary instructions to a client with coronary artery disease. Which statement by the client indicates an understanding of the dietary instructions?

• A. I should substitute eggs and milk for meat.
• B. I will eliminate all cholesterol and fat from my diet.
• C. I should routinely use polyunsaturated oils in my diet.
• D. I need to consider becoming a strict vegetarian.

Correct answer: C

Rationale: The correct answer is C. Using polyunsaturated oils, such as vegetable oils, can help manage cholesterol levels and reduce the risk of heart disease. This dietary change is beneficial for individuals with coronary artery disease as it promotes heart health by improving cholesterol profiles. Substituting eggs and milk for meat (Choice A) may not address the overall dietary needs for managing the condition. Completely eliminating all cholesterol and fat from the diet (Choice B) is not necessary as the body needs some healthy fats. Considering becoming a strict vegetarian (Choice D) is a personal choice and may not necessarily be required to manage coronary artery disease.

3. 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?

• A. Administer another nitroglycerin tablet.
• B. Apply 1 to 3 L/minute of oxygen via nasal cannula.
• C. Call for a 12-lead electrocardiogram (ECG) to be performed.
• D. Wait an additional 5 minutes, then give a second nitroglycerin tablet.

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.

4. 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.

5. What should be the nurse's priority action when a client diagnosed with angina pectoris complains of chest pain while taking a brisk walk?

• A. Administer nitroglycerin
• B. Have the client sit down
• C. Obtain an electrocardiogram
• D. Apply oxygen

Correct answer: B

Rationale: The nurse's priority action when a client diagnosed with angina pectoris complains of chest pain while taking a brisk walk is to have the client sit down. Sitting down reduces the workload on the heart and may alleviate pain by improving oxygen supply. This action aims to reduce the strain on the heart and improve oxygen delivery to the myocardium, which can help relieve the symptoms of angina pectoris. Administering nitroglycerin could be the next step after having the client sit down if the pain persists. Obtaining an electrocardiogram and applying oxygen are not the immediate priority actions when dealing with angina pectoris symptoms.

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