Nursing Elites

1. A nurse is caring for a client who is postoperative following a total knee arthroplasty. Which of the following actions should the nurse take?

• A. Place a pillow under the client's knees
• B. Keep the client's legs elevated
• C. Flex the client's knee every 2 hours
• D. Apply heat to the operative knee

Correct answer: B

Rationale: Keeping the client's legs elevated is the appropriate action to prevent venous thromboembolism following a total knee arthroplasty. Elevating the legs helps promote circulation and reduce the risk of blood clots. Placing a pillow under the client's knees may provide comfort but does not address the specific postoperative complication. Flexing the client's knee every 2 hours may be contraindicated as excessive movement can disrupt the surgical site. Applying heat to the operative knee is not recommended immediately postoperatively as it can increase swelling and discomfort.

2. Which electrolyte imbalance is commonly seen in patients taking furosemide?

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

Correct answer: A

Rationale: The correct answer is A: Hypokalemia. Furosemide, a loop diuretic, can lead to potassium loss in the urine, resulting in hypokalemia. This electrolyte imbalance is commonly seen in patients taking furosemide and requires close monitoring. Choices B, C, and D are incorrect because furosemide does not typically cause hyponatremia, hyperkalemia, or hypercalcemia as frequently as it causes hypokalemia.

3. A client with iron deficiency anemia has a new prescription for ferrous sulfate. Which of the following instructions should the nurse include?

• A. Take with a glass of milk to prevent stomach upset.
• B. Take with orange juice to enhance absorption.
• C. Take on an empty stomach to increase absorption.
• D. Take with food to reduce gastrointestinal upset.

Correct answer: C

Rationale: The correct instruction is to take ferrous sulfate on an empty stomach to increase absorption. This is because taking it with food or dairy products like milk can reduce its absorption. Orange juice is not recommended as it may interfere with the absorption of iron. Taking ferrous sulfate on an empty stomach may cause gastrointestinal upset, but this can be minimized by gradually increasing the dose.

4. A client who has a new prescription for prednisone is being taught by a nurse. Which of the following statements by the client indicates an understanding of the teaching?

• A. I will avoid taking this medication with food.
• B. I will need to take this medication for the rest of my life.
• C. I will take this medication for 2 weeks and then stop.
• D. I will take this medication with a high-protein snack.

Correct answer: B

Rationale: The correct answer is B because prednisone is usually prescribed for long-term use. Stopping it abruptly can lead to adrenal insufficiency. Choice A is incorrect because prednisone should be taken with food to prevent stomach upset. Choice C is incorrect as prednisone is typically tapered off gradually to avoid adverse effects. Choice D is incorrect as there is no specific requirement to take prednisone with a high-protein snack.

5. A nurse is caring for a client who is receiving warfarin therapy. Which of the following laboratory results indicates the need for an increase in the dose of warfarin?

• A. PT 28 seconds
• B. INR 1.2
• C. aPTT 40 seconds
• D. Fibrinogen 350 mg/dL

Correct answer: B

Rationale: An INR of 1.2 is below the therapeutic range for a client on warfarin, indicating inadequate anticoagulation. Therefore, the client would require an increase in the dose of warfarin to achieve the desired therapeutic effect. Choices A, C, and D are not indicative of the need for a dose increase in warfarin therapy. PT of 28 seconds is within the therapeutic range, aPTT of 40 seconds is also within the normal range, and fibrinogen level of 350 mg/dL does not provide information about the anticoagulant effect of warfarin.

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