Nursing Elites

1. Which electrolyte imbalance is common in patients receiving diuretics?

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

Correct answer: A

Rationale: The correct answer is Hypokalemia. Diuretics, such as furosemide, commonly cause potassium loss in patients, leading to hypokalemia. This electrolyte imbalance should be closely monitored to prevent complications like cardiac arrhythmias. Hypercalcemia (Choice B) is not typically associated with diuretic use. Hyponatremia (Choice C) involves low sodium levels and can occur in conditions like syndrome of inappropriate antidiuretic hormone secretion (SIADH) but is not directly caused by diuretics. Hypermagnesemia (Choice D) is an excess of magnesium, usually not a common electrolyte imbalance induced by diuretics.

2. Which of the following is the most concerning electrolyte imbalance for a patient on furosemide?

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

Correct answer: A

Rationale: The correct answer is Hypokalemia. Furosemide, a loop diuretic, can lead to potassium depletion in the body, causing hypokalemia. This is a significant concern as low potassium levels can result in cardiac arrhythmias and other serious complications. Hyperkalemia (Choice B) is unlikely to occur as a result of furosemide use. Hyponatremia (Choice C) is more commonly associated with thiazide diuretics. Hypercalcemia (Choice D) is not typically linked to furosemide use.

3. A nurse is caring for a client who is 1 hour postoperative following a thoracentesis. Which of the following findings should the nurse report to the provider?

• A. Oxygen saturation of 96%
• B. Tracheal deviation
• C. Pain level of 4 on a scale of 0 to 10
• D. Temperature of 37.4°C (99.3°F)

Correct answer: B

Rationale: Tracheal deviation is the correct finding to report to the provider. It can indicate a pneumothorax, which is a serious complication following a thoracentesis that requires immediate attention. Oxygen saturation of 96% is within the normal range and does not indicate an immediate issue. A pain level of 4 on a scale of 0 to 10 is subjective and may not be related to a serious complication. A temperature of 37.4°C (99.3°F) is slightly elevated but not a priority over tracheal deviation in this context.

4. A nurse is caring for a client who has deep-vein thrombosis (DVT) and is receiving heparin therapy. Which of the following laboratory values indicates that the client's heparin therapy is effective?

• A. aPTT 75 seconds.
• B. INR 1.2.
• C. Hemoglobin 10 g/dL.
• D. Fibrinogen level 350 mg/dL.

Correct answer: A

Rationale: An aPTT of 75 seconds indicates that heparin therapy is within the therapeutic range for a client with DVT. The activated partial thromboplastin time (aPTT) is used to monitor heparin therapy's effectiveness. Choice B, INR 1.2, is not the correct answer because INR is used to monitor the effectiveness of warfarin, a different anticoagulant, not heparin. Choice C, Hemoglobin 10 g/dL, is not a measure of heparin therapy effectiveness. Choice D, Fibrinogen level 350 mg/dL, is not a specific indicator of heparin therapy effectiveness for DVT.

5. A client is being discharged with a new prescription for metoprolol. Which of the following instructions should the nurse include?

• A. Do not discontinue this medication suddenly.
• B. Take this medication in the evening to decrease the risk of falls.
• C. Monitor your heart rate before taking this medication.
• D. Avoid grapefruit juice while taking this medication.

Correct answer: C

Rationale: The correct instruction for a client prescribed metoprolol is to monitor their heart rate before taking the medication. Metoprolol is a beta-blocker that can cause bradycardia (slow heart rate), so it is essential for clients to check their heart rate before each dose. Choice A is incorrect because abruptly stopping metoprolol can lead to adverse effects, so it should not be discontinued suddenly. Choice B is incorrect because there is no specific recommendation to take metoprolol at night to reduce falls. Choice D is incorrect because grapefruit juice can interact with metoprolol, affecting its absorption, and should be avoided.

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