Nursing Elites

1. A client is admitted with a diagnosis of diabetic ketoacidosis (DKA). Which laboratory finding is most indicative of this condition?

• A. Serum glucose of 180 mg/dL
• B. Blood pH of 7.30
• C. Positive urine ketones
• D. Serum bicarbonate of 25 mEq/L

Correct answer: C

Rationale: The correct answer is C: Positive urine ketones. In diabetic ketoacidosis (DKA), the body breaks down fat for energy due to a lack of insulin, leading to ketone production. Positive urine ketones are a hallmark laboratory finding in DKA as they directly reflect the presence of ketosis. Choice A, serum glucose of 180 mg/dL, may be elevated in DKA, but it is not specific to this condition. Choice B, blood pH of 7.30, often shows acidosis in DKA, but urine ketones are more specific to the presence of ketosis. Choice D, serum bicarbonate of 25 mEq/L, would typically be low in DKA due to acidosis rather than elevated.

2. A client with chronic obstructive pulmonary disease (COPD) is receiving home oxygen therapy. What is the most important instruction the nurse should provide?

• A. Use oxygen at the highest flow rate tolerated
• B. Avoid wearing oxygen during physical activity
• C. Do not smoke while using oxygen
• D. Store oxygen tanks in a cool, dark place

Correct answer: C

Rationale: The correct answer is C: 'Do not smoke while using oxygen.' Smoking while using oxygen can lead to a serious fire hazard, as oxygen supports combustion. This instruction is crucial to prevent potential harm to the client. Choices A, B, and D are incorrect. Using oxygen at the highest flow rate tolerated can be harmful, avoiding wearing oxygen during physical activity may limit the client's mobility unnecessarily, and storing oxygen tanks in a cool, dark place, although important, is not as critical as the instruction to avoid smoking while using oxygen.

3. A client with a history of chronic heart failure is admitted with symptoms of dyspnea and fatigue. What initial intervention should the nurse prepare to implement?

• A. Administration of IV diuretics
• B. Oxygen therapy
• C. Bed rest
• D. Dietary consultation

Correct answer: B

Rationale: The correct initial intervention for a client with chronic heart failure presenting with dyspnea and fatigue is oxygen therapy. Oxygen therapy can help relieve dyspnea and improve oxygen saturation levels, which are crucial in managing heart failure exacerbations. Administering IV diuretics may be necessary later to address fluid overload, but oxygen therapy takes precedence in addressing the immediate respiratory distress. Bed rest and dietary consultation are important aspects of care for heart failure patients, but in this scenario, oxygen therapy is the priority to improve the client's respiratory status.

4. The nurse is assessing a client with a suspected diagnosis of deep vein thrombosis (DVT). Which clinical sign is most indicative of DVT?

• A. Redness and warmth over the affected area
• B. Decreased peripheral pulses
• C. Cyanosis of the toes
• D. Muscle cramps in the calf

Correct answer: A

Rationale: Corrected Rationale: Redness and warmth over the affected area are classic signs of inflammation, which commonly occur in deep vein thrombosis (DVT) due to the obstruction of blood flow. These symptoms result from the body's inflammatory response to the blood clot. Choices B, C, and D are less indicative of DVT. Decreased peripheral pulses may occur in arterial insufficiency rather than DVT. Cyanosis of the toes indicates decreased oxygenation and is more characteristic of arterial issues. Muscle cramps in the calf are nonspecific and can be caused by various conditions, not solely DVT.

5. The nurse is caring for a client who is postoperative following a hip replacement. Which intervention is most important to prevent dislocation of the prosthesis?

• A. Keep the client in a low Fowler's position.
• B. Maintain hip abduction with pillows.
• C. Encourage early ambulation.
• D. Place the client in a prone position.

Correct answer: B

Rationale: Maintaining hip abduction with pillows is the most important intervention to prevent dislocation of the hip prosthesis postoperatively. This position helps keep the hip joint stable and prevents excessive internal rotation, which can lead to dislocation. Keeping the client in a low Fowler's position (Choice A) does not provide the necessary support and stability for the hip joint. While early ambulation (Choice C) is important for preventing complications such as blood clots and promoting circulation, it is not the most crucial intervention for preventing dislocation. Placing the client in a prone position (Choice D) can be harmful and increase the risk of dislocation.

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