Nursing Elites

1. A client is admitted with a possible myocardial infarction. Which laboratory test result is most indicative of a myocardial infarction?

• A. Serum creatine kinase (CK)
• B. Serum troponin
• C. Serum myoglobin
• D. C-reactive protein (CRP)

Correct answer: B

Rationale: Serum troponin is the most specific and sensitive indicator of myocardial infarction. Troponin levels rise within 3-4 hours after myocardial damage, peak at 10-24 hours, and remain elevated for up to 10-14 days. Creatine kinase (CK) and myoglobin can also be elevated in myocardial infarction, but troponin is more specific to cardiac muscle damage. C-reactive protein (CRP) is a marker of inflammation and is not specific for myocardial infarction.

2. The charge nurse observes a new nurse preparing to insert an intravenous (IV) catheter. The new nurse has gathered supplies, including intravenous catheters, an intravenous insertion kit, and a 4x4 sterile gauze dressing to cover and secure the insertion site. What action should the charge nurse take?

• A. Instruct the nurse to use a transparent dressing over the site
• B. Allow the new nurse to proceed with the procedure
• C. Assist the new nurse with the insertion
• D. Replace the 4x4 gauze with a larger dressing

Correct answer: A

Rationale: The correct answer is to instruct the nurse to use a transparent dressing over the site. Transparent dressings allow for continuous observation of the IV site, reducing the risk of complications. Choice B is incorrect because the charge nurse should intervene to ensure the new nurse follows best practices. Choice C is incorrect as the charge nurse should not just assist but provide guidance on the correct procedure. Choice D is incorrect because the size of the dressing is not the issue; it's the type of dressing that allows for better observation.

3. A client presents to the labor and delivery unit, screaming 'THE BABY IS COMING.' Which action should the nurse implement first?

• A. Observe the perineum
• B. Prepare the delivery room
• C. Call the obstetrician
• D. Administer pain relief

Correct answer: A

Rationale: Observing the perineum is the priority action for the nurse in this situation. It allows the nurse to assess the stage of labor, determine the urgency of the situation, and provide immediate assistance if the baby is indeed about to be delivered. Preparing the delivery room and calling the obstetrician can follow once the nurse has assessed the situation. Administering pain relief may not be the immediate priority when the baby is coming.

4. A client is receiving a full-strength continuous enteral tube feeding at 50 ml/hour and has developed diarrhea. The client has a new prescription to change the feeding to half strength. What intervention should the nurse implement?

• A. Add equal amounts of water and feeding to a feeding bag and infuse at 50 ml/hour
• B. Continue the full-strength feeding after decreasing the rate of infusion to 25 ml/hour
• C. Maintain the present feeding until diarrhea subsides and then begin the new prescription
• D. Withhold any further feeding until clarifying the prescription with the healthcare provider

Correct answer: A

Rationale: The correct intervention is to dilute the formula by adding equal amounts of water and feeding to a feeding bag and infusing it at 50 ml/hour. This can help alleviate the diarrhea that has developed. Diarrhea can occur as a complication of enteral tube feeding and can be due to a variety of causes, including hyperosmolar formula. Choice B is incorrect as continuing the full-strength feeding, even at a lower rate, may not address the issue of diarrhea. Choice C is incorrect because it is important to follow the new prescription to manage the diarrhea effectively. Choice D is incorrect as withholding feeding without taking appropriate action may delay necessary intervention.

5. A client with a history of myocardial infarction is admitted with chest pain. Which diagnostic test should the nurse anticipate preparing the client for first?

• A. Electrocardiogram (ECG)
• B. Chest X-ray
• C. Arterial blood gases (ABGs)
• D. Echocardiogram

Correct answer: A

Rationale: The correct answer is A: Electrocardiogram (ECG). An electrocardiogram should be performed first to assess for cardiac ischemia in a client with a history of myocardial infarction and chest pain. This test provides immediate information about the heart's electrical activity. Choice B, Chest X-ray, is used to visualize the structures of the chest, including the heart and lungs, but it does not directly assess for cardiac ischemia. Choice C, Arterial blood gases (ABGs), measures the oxygen and carbon dioxide levels in the blood and assesses acid-base balance, which is not the primary concern in this scenario. Choice D, Echocardiogram, is an ultrasound of the heart that provides information about the heart's structure and function, but it is not the initial diagnostic test for assessing cardiac ischemia in this situation.

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