Nursing Elites

1. A client without a history of respiratory disease has a pulse oximeter in place after surgery. The nurse monitors the pulse oximeter readings to ensure that oxygen saturation remains above:

• A. 85%
• B. 89%
• C. 95%
• D. 100%

Correct answer: C

Rationale: Pulse oximetry is a noninvasive method of continuously monitoring the oxygen saturation of hemoglobin (SaO2). In the absence of underlying respiratory disease, the expected oxygen saturation level is at least 95%. Oxygen saturation levels below 95% may indicate hypoxemia, which can compromise tissue perfusion and oxygen delivery to vital organs. Therefore, maintaining oxygen saturation above 95% is crucial to ensure adequate oxygenation post-surgery. Choices A, B, and D are incorrect as they represent oxygen saturation levels that are below the expected value for a client without a history of respiratory disease, which should be at least 95%.

2. A client recovering from extracorporeal shock wave lithotripsy for renal calculi has an ecchymotic area on the right lower back. What action should the nurse take?

• A. Administer fresh-frozen plasma.
• B. Apply an ice pack to the site.
• C. Place the client in the prone position.
• D. Obtain serum coagulation test results.

Correct answer: B

Rationale: After extracorporeal shock wave lithotripsy, ecchymosis can occur due to bleeding into the tissues from the shock waves. Applying an ice pack helps reduce the extent and discomfort of bruising. Administering fresh-frozen plasma and obtaining coagulation test results are not necessary as ecchymosis after this procedure is common and does not indicate a bleeding disorder that requires immediate intervention. Placing the client in the prone position will not address the bleeding or bruising in this situation.

3. The client with chronic renal failure is being taught about dietary restrictions by the nurse. Which of the following food items should the client avoid?

• A. Apples
• B. Bananas
• C. Chicken
• D. Rice

Correct answer: B

Rationale: The correct answer is B: Bananas. Bananas are high in potassium, which should be limited in clients with chronic renal failure to prevent hyperkalemia. Apples (choice A), chicken (choice C), and rice (choice D) are not typically restricted in clients with chronic renal failure. Apples and rice are lower in potassium, while chicken is a good source of lean protein, which is usually encouraged in these clients to meet their protein needs without excess potassium intake.

4. A patient is being treated for shock after a motor vehicle accident. The provider orders 6% dextran 75 to be given intravenously. The nurse should expect which outcome as the result of this infusion?

• A. Decreased urine output
• B. Improved blood oxygenation
• C. Increased interstitial fluid
• D. Stabilization of heart rate and blood pressure

Correct answer: D

Rationale: 6% Dextran 75 is a high molecular-weight colloidal solution used to treat shock from burns or trauma. Colloids like 6% dextran 75 are plasma expanders that help increase blood volume, leading to improved heart rate and blood pressure stabilization. The infusion of plasma expanders does not typically decrease urine output. It primarily aims to stabilize circulation rather than affect blood oxygenation or increase interstitial fluid levels.

5. Which of the following is the best indicator of fluid balance in a patient with heart failure?

• A. Daily weight measurements.
• B. Monitoring intake and output.
• C. Assessing skin turgor.
• D. Checking for peripheral edema.

Correct answer: A

Rationale: Daily weight measurements are the best indicator of fluid balance in a patient with heart failure. Changes in weight reflect fluid retention or loss more accurately than other methods. Monitoring intake and output (choice B) is essential but may not provide a comprehensive picture of fluid status. Skin turgor (choice C) and checking for peripheral edema (choice D) are more indicative of dehydration and fluid overload, respectively, rather than overall fluid balance.

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