Nursing Elites

1. 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.

2. 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.

3. A client has a new prescription for enalapril. Which of the following adverse effects should the client be instructed to monitor and report?

• A. Frequent urination
• B. Tremors
• C. Dry mouth
• D. Persistent cough

Correct answer: D

Rationale: The correct answer is D: Persistent cough. Enalapril, an ACE inhibitor, is known to commonly cause a persistent cough as an adverse effect due to its effect on bradykinin levels. Clients should be instructed to monitor for a persistent cough and report it promptly to their healthcare provider for further evaluation and possible medication adjustment. Choices A, B, and C are incorrect as they are not commonly associated with enalapril use and are not typical adverse effects of ACE inhibitors.

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

• A. Monitor your heart rate daily.
• B. Take the medication at bedtime.
• C. Avoid consuming grapefruit juice.
• D. Take the medication with food.

Correct answer: A

Rationale: The correct answer is to instruct the client to monitor their heart rate daily when taking verapamil. Verapamil is a calcium channel blocker that can cause bradycardia, making it crucial to monitor the heart rate regularly to detect any changes promptly. Choice B, taking the medication at bedtime, is not specifically related to verapamil administration. Choice C, avoiding grapefruit juice, is more relevant to medications metabolized by CYP3A4 enzymes, not verapamil. Choice D, taking the medication with food, is not a specific instruction for verapamil, as it can be taken with or without food.

5. The client has angina pectoris and is prescribed nitroglycerin patches. What instruction should the nurse provide to the client?

• A. Apply the patch to the chest and leave it in place for 24 hours
• B. Apply the patch to a different site each time to prevent skin irritation
• C. Remove the patch before going to bed to prevent tolerance
• D. Cut the patch in half if experiencing headaches

Correct answer: B

Rationale: The correct instruction for the nurse to provide to the client is to apply the nitroglycerin patch to a different site each time to prevent skin irritation. Rotating the application site is crucial to prevent skin irritation and ensure consistent absorption of the medication. Applying the patch to the same site can lead to skin irritation and decreased effectiveness. Removing the patch before going to bed is not necessary, as the patch can typically be worn for a specific duration. Cutting the patch in half if experiencing headaches is not recommended and can alter the dose of the medication.

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