Nursing Elites

1. Which electrolyte imbalance should be closely monitored in patients on diuretics?

• A. Hypokalemia
• B. Hyponatremia
• C. Hyperkalemia
• D. Hypercalcemia

Correct answer: A

Rationale: The correct answer is A: Hypokalemia. Patients on diuretics are at risk of developing hypokalemia due to increased potassium excretion by the kidneys. Hypokalemia can lead to serious consequences such as cardiac arrhythmias. Hyponatremia (choice B) is an imbalance of sodium levels and is not typically associated with diuretic use. Hyperkalemia (choice C) is the opposite condition where potassium levels are elevated and is less common in patients on diuretics. Hypercalcemia (choice D) is an excess of calcium in the blood and is not directly related to diuretic use. Therefore, monitoring for hypokalemia is crucial in patients taking diuretics.

2. Which medication is commonly prescribed for patients with atrial fibrillation?

• A. Warfarin
• B. Digoxin
• C. Aspirin
• D. Lisinopril

Correct answer: B

Rationale: Digoxin is commonly prescribed to manage atrial fibrillation by controlling heart rate. While Warfarin is used to prevent blood clots, it is not primarily used for controlling heart rate in atrial fibrillation. Aspirin is not the first-line treatment for atrial fibrillation and is generally not recommended for rhythm control. Lisinopril is an ACE inhibitor used to treat high blood pressure and heart failure, but it is not typically prescribed as the primary medication for managing atrial fibrillation.

3. A nurse is caring for a client who has a prescription for warfarin. Which of the following laboratory values should the nurse monitor?

• A. Prothrombin time (PT)
• B. Hemoglobin
• C. aPTT
• D. INR

Correct answer: D

Rationale: The correct answer is D, INR. The International Normalized Ratio (INR) is used to monitor the therapeutic effect of warfarin and to adjust the dose as needed. While Prothrombin time (PT) and activated Partial Thromboplastin Time (aPTT) are also related to coagulation studies, monitoring INR specifically helps in managing warfarin therapy. Hemoglobin, on the other hand, is not typically monitored in relation to warfarin therapy.

4. A nurse is providing teaching to a client who has a new prescription for levothyroxine. Which of the following instructions should the nurse include?

• A. Take this medication on an empty stomach.
• B. Take this medication at bedtime.
• C. Take this medication with food.
• D. Take this medication with a calcium supplement.

Correct answer: A

Rationale: The correct answer is A: 'Take this medication on an empty stomach.' Levothyroxine should be taken on an empty stomach to enhance absorption. Taking it with food or at bedtime can interfere with its absorption. Calcium supplements should also be avoided when taking levothyroxine as they can reduce its absorption.

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

• A. Take this medication in the evening before bed.
• B. Take this medication on an empty stomach.
• C. Take this medication with a full glass of milk.
• D. Take this medication with an antacid if you experience indigestion.

Correct answer: B

Rationale: The correct instruction when taking levothyroxine is to take it on an empty stomach. This enhances absorption and ensures the medication's effectiveness. Taking it with food or other substances, such as milk or antacids, can interfere with its absorption. Therefore, choices A, C, and D are incorrect.

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