Nursing Elites

1. A nurse is caring for a client who has a prescription for digoxin. Which of the following laboratory values should the nurse monitor to identify an adverse effect of this medication?

• A. Potassium 3.5 mEq/L
• B. Sodium 140 mEq/L
• C. Calcium 9.5 mg/dL
• D. Magnesium 2.0 mEq/L

Correct answer: A

Rationale: The correct answer is A: Potassium 3.5 mEq/L. Digoxin can cause hypokalemia as an adverse effect. Monitoring potassium levels is crucial because low potassium levels can increase the risk of digoxin toxicity. Choices B, C, and D are incorrect as they are not directly associated with potential adverse effects of digoxin. Sodium levels are not typically affected by digoxin, calcium levels are not a primary concern with digoxin therapy, and magnesium levels are not the most important to monitor for digoxin adverse effects.

2. A nurse is caring for a client who has a sodium level of 125 mEq/L. Which of the following actions should the nurse take?

• A. Administer 0.9% sodium chloride IV
• B. Administer a hypotonic IV solution
• C. Encourage oral fluid intake
• D. Restrict oral fluid intake

Correct answer: A

Rationale: In a client with a sodium level of 125 mEq/L (hyponatremia), the nurse should administer 0.9% sodium chloride IV to help increase sodium levels. Choice B, administering a hypotonic IV solution, would further decrease the sodium level. Choice C, encouraging oral fluid intake, is contraindicated as it can dilute the sodium concentration further. Choice D, restricting oral fluid intake, could worsen the client's condition by leading to dehydration and further electrolyte imbalances.

3. A nurse is caring for a client who has chronic kidney disease and a serum potassium level of 6.0 mEq/L. Which of the following findings should the nurse expect?

• A. Hypokalemia
• B. Hypocalcemia
• C. Hypoglycemia
• D. Hyperkalemia

Correct answer: D

Rationale: The correct answer is D: Hyperkalemia. In chronic kidney disease, there is decreased renal excretion of potassium, leading to elevated serum potassium levels. Hypokalemia (Choice A) is low potassium levels, which is the opposite finding in this scenario. Hypocalcemia (Choice B) is decreased calcium levels and is not directly related to chronic kidney disease or elevated potassium levels. Hypoglycemia (Choice C) is low blood sugar levels and is not typically associated with chronic kidney disease or high potassium levels.

4. A nurse is caring for a client who is 2 hours postoperative following a thoracotomy. Which of the following findings should the nurse report to the provider?

• A. Chest tube drainage of 60 mL/hr
• B. Oxygen saturation of 95%
• C. Chest tube drainage of 120 mL/hr
• D. Heart rate of 88/min

Correct answer: C

Rationale: The correct answer is C. Chest tube drainage of more than 100 mL/hr may indicate active bleeding, which is a serious complication post-thoracotomy surgery. This finding should be reported to the healthcare provider immediately for further evaluation and intervention. Choices A, B, and D are within normal limits for a client 2 hours post-thoracotomy and do not require immediate reporting. Oxygen saturation of 95% is acceptable, and a heart rate of 88/min is within the normal range for an adult.

5. A nurse is reviewing the laboratory results of a client who has hypokalemia. Which of the following findings should the nurse expect?

• A. Serum potassium 5.4 mEq/L
• B. Flat T waves
• C. Elevated ST segments
• D. Bradycardia

Correct answer: B

Rationale: Flat T waves are a characteristic ECG finding in hypokalemia. Hypokalemia causes a decrease in serum potassium levels, leading to altered cardiac conduction. Flat T waves are associated with hypokalemia-induced cardiac dysrhythmias. Elevated ST segments are typically seen in conditions like myocardial infarction, not in hypokalemia. Bradycardia is not a typical manifestation of hypokalemia; instead, tachycardia may occur due to potassium imbalances affecting the heart's electrical activity.

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