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. Why should the client diagnosed with rheumatic heart disease be advised to notify the dentist before dental procedures?

• A. The client requires prophylactic antibiotics before treatment.
• B. The client may experience dysrhythmias with high-speed drills.
• C. The client may have an adverse reaction to lidocaine with epinephrine.
• D. The client may develop heart failure during stressful events.

Correct answer: A

Rationale: Clients with rheumatic heart disease are at risk for infective endocarditis, a serious infection of the heart lining or valves. They need prophylactic antibiotics before invasive procedures, including dental work, to prevent this life-threatening complication. While dysrhythmias with high-speed drills, adverse reactions to local anesthesia, and the risk of heart failure during stressful events are all concerns for clients with heart conditions, the primary reason for notifying the dentist before dental procedures in rheumatic heart disease is the need for prophylactic antibiotics to prevent infective endocarditis.

3. During an assessment, a client taking valproic acid exhibits elevated liver enzymes. What finding should the nurse report to the provider?

• A. Elevated liver enzymes
• B. Weight loss
• C. Dry mouth
• D. Increased appetite

Correct answer: A

Rationale: Elevated liver enzymes are a critical finding that the nurse should report to the provider when assessing a client taking valproic acid. It can be indicative of hepatotoxicity, a severe side effect associated with valproic acid use. Timely reporting and intervention are essential to prevent further complications and ensure the client's safety and well-being. Choices B, C, and D are not directly related to valproic acid use or the manifestation of hepatotoxicity. Weight loss, dry mouth, and increased appetite are not typically associated with elevated liver enzymes in the context of valproic acid administration.

4. 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.

5. A client has a new prescription for metformin. Which of the following statements should the nurse include in the teaching?

• A. Take the medication with a full glass of water.
• B. Monitor for signs of hypoglycemia.
• C. Increase your fluid intake.
• D. Expect a metallic taste in your mouth.

Correct answer: C

Rationale: Increasing fluid intake is an important teaching point for clients starting metformin to prevent gastrointestinal discomfort, a common side effect of this medication. Metformin can cause gastrointestinal symptoms such as nausea, bloating, and diarrhea, which can be reduced by staying well-hydrated. Therefore, advising the client to increase their fluid intake will help minimize these side effects and improve medication tolerance. The other options are incorrect: Option A is a general instruction for taking medications but not specifically related to metformin. Option B is incorrect because metformin typically does not cause hypoglycemia but rather hyperglycemia. Option D is also incorrect as a metallic taste in the mouth is not a common side effect of metformin.

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