Nursing Elites

1. A client is receiving continuous intravenous heparin for a deep vein thrombosis. Which laboratory result should the nurse monitor to ensure therapeutic heparin levels?

• A. International normalized ratio (INR)
• B. Activated partial thromboplastin time (aPTT)
• C. Hemoglobin
• D. Platelet count

Correct answer: B

Rationale: The activated partial thromboplastin time (aPTT) is the most accurate measure of heparin's therapeutic effect. Heparin increases the time it takes for blood to clot, and the aPTT helps determine whether the dose is within the desired range for anticoagulation therapy. Monitoring the INR, hemoglobin, or platelet count is not specific to assessing therapeutic heparin levels and may not reflect the anticoagulant effect of heparin.

2. A client with peripheral vascular disease reports leg pain while walking. What intervention is most effective for the nurse to recommend?

• A. Recommend elevating the legs above the heart.
• B. Encourage the client to increase walking distance gradually.
• C. Encourage the client to avoid sitting or standing for long periods.
• D. Instruct the client to use warm compresses for pain relief.

Correct answer: B

Rationale: The correct answer is to encourage the client to increase walking distance gradually. This intervention is effective because gradual increases in walking distance promote circulation, improve oxygen delivery to tissues, and help reduce leg pain caused by peripheral vascular disease. Elevating the legs above the heart (Choice A) may be beneficial in other conditions like venous insufficiency but not specifically for peripheral vascular disease. Encouraging the client to avoid sitting or standing for long periods (Choice C) can help prevent blood pooling but does not directly address the walking-induced leg pain. Instructing the client to use warm compresses for pain relief (Choice D) may provide temporary relief but does not address the underlying circulation issues associated with peripheral vascular disease.

3. A client with heart failure has a prescription for digoxin. The nurse is aware that sufficient potassium should be included in the diet because hypokalemia in combination with this medication ____________.

• A. Can predispose to dysrhythmias
• B. May lead to oliguria
• C. May cause irritability and anxiety
• D. Sometimes alters consciousness

Correct answer: A

Rationale: The correct answer is A: Can predispose to dysrhythmias. Hypokalemia combined with digoxin increases the risk of dysrhythmias due to the potentiation of digoxin's effects on cardiac conduction. Choice B, May lead to oliguria, is incorrect because hypokalemia is not typically associated with oliguria. Choice C, May cause irritability and anxiety, is incorrect as these symptoms are more commonly associated with hypocalcemia. Choice D, Sometimes alters consciousness, is incorrect as altered consciousness is not a typical effect of hypokalemia combined with digoxin.

4. A client with asthma is prescribed an inhaled corticosteroid. What teaching should the nurse provide?

• A. Rinse the mouth with water after using the inhaler.
• B. Take the medication only during asthma attacks.
• C. Avoid using the inhaler before exercise.
• D. Clean the inhaler with hot water after each use.

Correct answer: A

Rationale: The correct teaching the nurse should provide to a client prescribed an inhaled corticosteroid is to rinse the mouth with water after using the inhaler. This helps prevent oral fungal infections, a common side effect of inhaled corticosteroids. Choice B is incorrect because inhaled corticosteroids are usually used regularly, not just during asthma attacks. Choice C is incorrect as using the inhaler before exercise can actually help prevent exercise-induced bronchospasm. Choice D is incorrect because cleaning the inhaler with hot water after each use is not necessary and may damage the device.

5. Prolonged exposure to high concentrations of supplemental oxygen over several days can cause which pathophysiological effect?

• A. Reduced cardiac output
• B. Disrupted surfactant production
• C. Hyperactivity of alveoli
• D. Increased oxygen carrying capacity

Correct answer: B

Rationale: Corrected Rationale: Prolonged exposure to high oxygen concentrations can disrupt the production of surfactant in the lungs, leading to atelectasis and other lung complications. Surfactant is essential for maintaining lung compliance and preventing alveolar collapse. Reduced cardiac output (Choice A) is not directly associated with prolonged oxygen exposure. Hyperactivity of alveoli (Choice C) is not a recognized consequence of high oxygen levels. Increased oxygen carrying capacity (Choice D) is not a pathophysiological effect of prolonged high oxygen exposure.

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