Nursing Elites

1. The healthcare provider prescribes an IV solution of isoproterenol (Isuprel) 1 mg in 250 ml of D5W at 300 mcg/hour. The nurse should program the infusion pump to deliver how many ml/hour?

• A. 50 ml/hour
• B. 25 ml/hour
• C. 75 ml/hour
• D. 100 ml/hour

Correct answer: C

Rationale: To calculate the infusion rate, convert 1 mg to 1,000 mcg (1 mg = 1,000 mcg) and then use the formula D/H x Q, where D is the desired dose, H is the dose on hand, and Q is the quantity of solution. In this case, it would be 300 mcg/hour / 1,000 mcg x 250 ml = 75 ml/hour. Therefore, the nurse should program the infusion pump to deliver 75 ml/hour. Choice A (50 ml/hour), Choice B (25 ml/hour), and Choice D (100 ml/hour) are incorrect as they do not correspond to the calculated rate of 75 ml/hour.

2. A client with rheumatoid arthritis is prescribed methotrexate. Which laboratory value should the nurse monitor closely?

• A. White blood cell count of 10,000/mm³
• B. Hemoglobin of 12 g/dL
• C. Liver function tests
• D. Platelet count of 150,000/mm³

Correct answer: C

Rationale: The correct answer is C: Liver function tests. Methotrexate can cause hepatotoxicity, making it essential to closely monitor liver function tests in clients receiving this medication. Monitoring white blood cell count, hemoglobin, or platelet count is not specifically required for methotrexate therapy and would not provide relevant information regarding potential adverse effects of the medication.

3. Which nursing intervention is most important when caring for a client with myasthenia gravis?

• A. Encourage the client to rest frequently.
• B. Administer medication 30 minutes before meals.
• C. Maintain a patent airway.
• D. Monitor for signs of respiratory infection.

Correct answer: C

Rationale: Maintaining a patent airway is crucial for clients with myasthenia gravis because muscle weakness can affect the muscles responsible for breathing, potentially leading to respiratory compromise. Encouraging rest, administering medication, and monitoring for respiratory infections are important aspects of care but do not take precedence over ensuring a patent airway for adequate oxygenation.

4. The nurse is caring for a client with diabetic ketoacidosis (DKA). Which intervention is most important?

• A. Administer insulin as prescribed.
• B. Monitor the client's urine output.
• C. Assess the client's level of consciousness.
• D. Obtain an arterial blood gas (ABG) sample.

Correct answer: A

Rationale: Administering insulin is the most crucial intervention in managing diabetic ketoacidosis. Insulin helps reduce blood glucose levels and correct metabolic acidosis, which are the primary issues in DKA. Monitoring urine output (Choice B) is important but not as critical as administering insulin. Assessing the client's level of consciousness (Choice C) is essential but does not directly address the underlying cause of DKA. Obtaining an arterial blood gas sample (Choice D) can provide valuable information but is not as urgent as administering insulin to address the immediate metabolic imbalance.

5. A client with atrial fibrillation is receiving digoxin (Lanoxin) and warfarin (Coumadin). Which assessment finding should the nurse report to the healthcare provider immediately?

• A. Heart rate of 58 beats per minute
• B. Presence of a new murmur
• C. INR of 2.5
• D. Blood pressure of 110/70 mmHg

Correct answer: B

Rationale: The correct answer is B. The presence of a new murmur in a client with atrial fibrillation may indicate a valvular problem or other complications, requiring immediate reporting. A heart rate of 58 beats per minute is within the normal range for some individuals with atrial fibrillation, so it is not an immediate concern. An INR of 2.5 is within the therapeutic range for a client on warfarin, indicating appropriate anticoagulation. A blood pressure of 110/70 mmHg is also within the normal range and does not pose an immediate threat to the client's health.

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