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 a new prescription for simvastatin is receiving teaching from a healthcare provider. Which of the following statements by the client indicates an understanding of the teaching?

• A. 'I should take this medication in the evening.'
• B. 'I should avoid drinking grapefruit juice.'
• C. 'I should expect my urine to be red-orange while taking this medication.'
• D. 'I will need to take this medication for the rest of my life.'

Correct answer: A

Rationale: The correct answer is A. Taking simvastatin in the evening is recommended because cholesterol synthesis increases at night. This timing maximizes the effectiveness of the medication in lowering cholesterol levels. Choice B is incorrect because grapefruit juice should be avoided with certain statins, but simvastatin is not significantly affected by grapefruit juice. Choice C is incorrect as red-orange urine is not an expected side effect of simvastatin. Choice D is incorrect because simvastatin is typically prescribed for managing cholesterol levels and may not need to be taken for the rest of the client's life.

3. A client with hypertension is prescribed a thiazide diuretic. What instruction should the nurse reinforce to the client?

• A. Take the medication in the morning.
• B. Increase potassium intake in the diet.
• C. Weigh yourself daily.
• D. Limit fluid intake to 2 liters per day.

Correct answer: C

Rationale: The correct answer is to weigh oneself daily. This instruction is important as daily weights help monitor fluid loss and are crucial for detecting early signs of fluid imbalance when taking a diuretic. Weighing daily allows for timely adjustments in treatment and helps prevent complications associated with fluid imbalance. Choice A is not directly related to the client's need for monitoring fluid balance. Choice B, although important for some diuretics, is not specific to thiazide diuretics. Choice D is not appropriate as limiting fluid intake without proper monitoring can lead to dehydration, especially when taking diuretics.

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

• A. You may experience weight gain.
• B. Increase your intake of vitamin K.
• C. Expect increased urinary output.
• D. You may have dark, tarry stools.

Correct answer: A

Rationale: The correct answer is A. Weight gain is a common side effect of prednisone. The nurse should educate the client about the possibility of weight gain and the need to monitor it closely during treatment with prednisone. Choice B is incorrect because increasing vitamin K intake is not specifically related to prednisone therapy. Choice C is incorrect as prednisone is more likely to cause fluid retention rather than increased urinary output. Choice D is incorrect as dark, tarry stools are not a common side effect of prednisone.

5. The nurse is caring for a client with coronary artery disease (CAD) who reports chest pain. The nurse administers nitroglycerin as prescribed. What is the next priority action?

• A. Obtain a 12-lead ECG
• B. Monitor the client's blood pressure
• C. Notify the healthcare provider
• D. Administer a second dose of nitroglycerin

Correct answer: B

Rationale: After administering nitroglycerin, the next priority action is to monitor the client's blood pressure. Nitroglycerin can cause vasodilation and subsequent hypotension, so it is crucial to assess the client's blood pressure to prevent complications and ensure safety. Obtaining a 12-lead ECG may be necessary but monitoring blood pressure takes precedence to detect and manage potential hypotension. Notifying the healthcare provider can be done after ensuring the client's stability. Administering a second dose of nitroglycerin without assessing the client's response and blood pressure can lead to further hypotension.

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