Nursing Elites

1. The nurse is informed during shift report that a client is experiencing occasional ventricular dysrhythmias. The nurse reviews the client's laboratory results, recalling that which electrolyte imbalance could be responsible for this development?

• A. Hypokalemia
• B. Hypernatremia
• C. Hypochloremia
• D. Hypercalcemia

Correct answer: A

Rationale: Hypokalemia, which is low potassium levels, can disrupt the normal electrical activity of the heart and lead to ventricular dysrhythmias. Potassium plays a crucial role in maintaining the heart's rhythm, and a deficiency can result in dangerous heart rhythm abnormalities. Hypernatremia (Choice B), which is high sodium levels, does not directly impact heart rhythm. Hypochloremia (Choice C), which is low chloride levels, is not typically associated with ventricular dysrhythmias. Hypercalcemia (Choice D), which is high calcium levels, is not a common cause of ventricular dysrhythmias.

2. A healthcare professional is assessing a client who has been taking isoniazid to treat tuberculosis. The healthcare professional should monitor the client for which of the following findings as an adverse effect of the medication?

• A. Diarrhea
• B. Blurred vision
• C. Hearing loss
• D. Jaundice

Correct answer: D

Rationale: Correct. Jaundice is a serious adverse effect of isoniazid due to liver damage. It is essential to monitor for signs of liver toxicity, such as jaundice, while the client is on this medication. Diarrhea is a common side effect of isoniazid, but it is not as serious as liver damage. Blurred vision and hearing loss are not typically associated with isoniazid use.

3. A healthcare professional is reviewing laboratory results for a client who has been taking carbamazepine. Which of the following findings should the healthcare professional report to the provider?

• A. WBC count 3,000/mm3
• B. Platelet count 150,000/mm3
• C. Hemoglobin 14 g/dL
• D. Serum potassium 4.5 mEq/L

Correct answer: A

Rationale: A WBC count of 3,000/mm3 indicates leukopenia, a serious side effect of carbamazepine. Leukopenia can increase the risk of infections due to decreased white blood cell count, which is important to report to the provider for further evaluation and management. Platelet count within normal range (choice B), hemoglobin level within normal range (choice C), and serum potassium level within normal range (choice D) are not directly associated with carbamazepine use and do not require immediate reporting as they do not indicate a serious adverse effect.

4. The client is receiving furosemide (Lasix) for heart failure. What potential side effect should the nurse monitor for?

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

Correct answer: A

Rationale: The correct answer is A: Hypokalemia. Furosemide, a loop diuretic, causes potassium loss, leading to hypokalemia. Monitoring potassium levels is crucial because hypokalemia can result in cardiac arrhythmias and muscle weakness. Choices B, C, and D are incorrect because furosemide does not typically cause hyperkalemia, hypernatremia, or hypoglycemia.

5. A client with heart failure is prescribed furosemide (Lasix). The nurse should monitor the client for which potential electrolyte imbalance?

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

Correct answer: C

Rationale: When a client with heart failure is prescribed furosemide, the nurse should monitor for hypokalemia. Furosemide is a loop diuretic that can lead to potassium loss, which increases the risk of hypokalemia. Hypokalemia can have serious implications such as cardiac dysrhythmias. Therefore, it is essential to closely monitor the client's serum potassium levels while on furosemide to prevent complications. Hyperkalemia (Choice A) is incorrect because furosemide leads to potassium loss, not retention. Hypernatremia (Choice B) is not typically associated with furosemide use. Hypocalcemia (Choice D) is not a common electrolyte imbalance caused by furosemide.

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