Nursing Elites

1. A nurse is reviewing the laboratory results of a client who has hypokalemia. Which of the following findings should the nurse expect?

• A. Serum potassium 5.4 mEq/L
• B. Flat T waves
• C. Elevated ST segments
• D. Bradycardia

Correct answer: B

Rationale: Flat T waves are a characteristic ECG finding in hypokalemia. Hypokalemia causes a decrease in serum potassium levels, leading to altered cardiac conduction. Flat T waves are associated with hypokalemia-induced cardiac dysrhythmias. Elevated ST segments are typically seen in conditions like myocardial infarction, not in hypokalemia. Bradycardia is not a typical manifestation of hypokalemia; instead, tachycardia may occur due to potassium imbalances affecting the heart's electrical activity.

2. A nurse is providing teaching to a client who has osteoporosis. Which of the following instructions should the nurse include?

• A. Take a calcium supplement once daily.
• B. Walk for 30 minutes three times per week.
• C. Avoid weight-bearing exercises.
• D. Increase intake of vitamin D.

Correct answer: B

Rationale: The correct answer is B. Walking regularly is beneficial for clients with osteoporosis as it helps maintain bone density and prevent fractures. Choice A is not the most appropriate because clients with osteoporosis often require more than just calcium supplements. Choice C is incorrect as weight-bearing exercises actually help strengthen bones. Choice D is important, but walking regularly has a more direct impact on bone health in clients with osteoporosis.

3. A nurse is caring for a client who is receiving a continuous heparin infusion. Which of the following laboratory values should the nurse monitor to evaluate the effectiveness of the therapy?

• A. Serum potassium
• B. Platelets
• C. aPTT
• D. INR

Correct answer: C

Rationale: The correct answer is C: aPTT. Monitoring the activated partial thromboplastin time (aPTT) is crucial when a client is receiving heparin therapy. The aPTT reflects the clotting time and helps assess the effectiveness of heparin in preventing clot formation. Keeping the aPTT within the therapeutic range ensures that the medication is working optimally. Choices A, B, and D are incorrect because serum potassium, platelets, and INR are not direct indicators of heparin's effectiveness or therapeutic range.

4. A nurse is reviewing the prescription for doxazosin with a client. Which of the following should be included in the teaching?

• A. Decrease caloric intake to prevent weight gain.
• B. Increase dietary fiber to alleviate constipation.
• C. Rise slowly when sitting up from bed.
• D. Take this medication in the morning.

Correct answer: C

Rationale: The correct answer is C. Doxazosin can cause orthostatic hypotension, leading to dizziness and falls if the client rises quickly from a seated position. Instructing the client to rise slowly when sitting up from bed helps prevent these adverse effects. Choices A, B, and D are incorrect because doxazosin does not directly relate to caloric intake, dietary fiber, or a specific time of day for administration.

5. How should fluid balance in a patient with heart failure be monitored?

• A. Monitor daily weight
• B. Monitor input and output
• C. Check for edema
• D. Monitor blood pressure

Correct answer: A

Rationale: The correct answer is to monitor daily weight. Daily weight monitoring is crucial in assessing fluid balance in patients with heart failure because sudden weight gain can indicate fluid retention. Monitoring input and output (choice B) is important but may not provide a complete picture of fluid balance. Checking for edema (choice C) is a sign of fluid accumulation but may not be as accurate as daily weight monitoring. Monitoring blood pressure (choice D) is important in heart failure management but does not directly assess fluid balance.

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