Nursing Elites

1. A nurse is caring for a client who has a new prescription for warfarin. Which of the following laboratory tests should the nurse use to monitor the client's therapeutic response to the medication?

• A. INR
• B. aPTT
• C. Platelet count
• D. Hemoglobin A1C

Correct answer: A

Rationale: The correct answer is A: INR. The INR (International Normalized Ratio) is the laboratory test used to monitor the therapeutic response of warfarin. It helps ensure that the client's clotting time is within the desired range to prevent complications such as excessive bleeding or clotting. Choice B, aPTT (Activated Partial Thromboplastin Time), is not typically used to monitor warfarin therapy but rather for assessing heparin therapy. Choice C, Platelet count, assesses the number of platelets in the blood and is not specifically used to monitor warfarin therapy. Choice D, Hemoglobin A1C, is a test used to monitor long-term blood sugar control in diabetic patients and is not relevant to monitoring warfarin therapy.

2. What is the priority intervention for a patient with a severe allergic reaction?

• A. Administer epinephrine
• B. Administer corticosteroids
• C. Administer oxygen
• D. Administer antihistamines

Correct answer: A

Rationale: The correct answer is to administer epinephrine. Epinephrine is the first-line treatment for severe allergic reactions because it rapidly reverses the symptoms of anaphylaxis by constricting blood vessels, increasing heart rate, and relaxing airway muscles. Corticosteroids, although helpful to reduce inflammation, are not the priority in the acute management of severe allergic reactions. Oxygen may be needed to support breathing, but it is not the initial priority. Antihistamines are not as effective as epinephrine in treating severe allergic reactions and should not be the first intervention.

3. A nurse is planning care for a client who has dehydration. Which of the following interventions should the nurse include?

• A. Monitor the client's fluid intake.
• B. Provide the client with a high-protein diet.
• C. Encourage the client to ambulate frequently.
• D. Administer 0.45% sodium chloride IV.

Correct answer: D

Rationale: The correct intervention for a client with dehydration is to administer 0.45% sodium chloride IV. This solution helps correct fluid imbalance by providing the necessary electrolytes. Restricting fluid intake (Choice A) is not appropriate for dehydration as the client needs adequate fluids to rehydrate. Providing a high-protein diet (Choice B) is not directly related to correcting dehydration. Encouraging the client to ambulate frequently (Choice C) is beneficial for overall health but does not address the issue of dehydration directly.

4. A healthcare provider is reviewing the medical record of a client who has schizophrenia and is taking clozapine. Which finding should the healthcare provider identify as a contraindication to the administration of clozapine?

• A. Heart rate 58/min.
• B. Fasting blood glucose 100 mg/dL.
• C. Hgb 14 g/dL.
• D. WBC count 2,900/mm3.

Correct answer: D

Rationale: The correct answer is D: a low WBC count. Clozapine can suppress bone marrow function, leading to a decreased white blood cell count. This condition, known as agranulocytosis, increases the risk of severe infections. Monitoring WBC counts is essential during clozapine therapy. Choices A, B, and C are within normal ranges and are not contraindications for administering clozapine.

5. A nurse is caring for a client who has a prescription for spironolactone. Which of the following laboratory values should the nurse monitor?

• A. Sodium 140 mEq/L
• B. Calcium 9.5 mg/dL
• C. Potassium 5.2 mEq/L
• D. Magnesium 2.0 mEq/L

Correct answer: C

Rationale: The correct answer is C: Potassium 5.2 mEq/L. A potassium level of 5.2 mEq/L is elevated and should be monitored in clients taking spironolactone, which is a potassium-sparing medication. Monitoring potassium levels is crucial as spironolactone can cause hyperkalemia. Choices A, B, and D are incorrect because sodium, calcium, and magnesium levels are not typically affected by spironolactone. Therefore, the nurse should primarily focus on monitoring the potassium levels in this scenario.

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