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. During the infusion of a second unit of packed red blood cells, the client's temperature increases from 99 to 101.6 F. Which intervention should the nurse implement?

• A. Stop the transfusion and start a saline infusion.
• B. Administer antipyretics and continue the transfusion.
• C. Monitor the client’s vital signs every 15 minutes.
• D. Notify the healthcare provider and continue the transfusion.

Correct answer: A

Rationale: An increase in temperature during a transfusion may indicate a transfusion reaction, which can be serious. Stopping the transfusion and starting a saline infusion is the priority action to prevent further complications and address the potential adverse reaction. Administering antipyretics (choice B) may mask the symptoms of a transfusion reaction, delaying appropriate treatment. While monitoring vital signs (choice C) is important, stopping the transfusion takes precedence to prevent harm. Notifying the healthcare provider (choice D) is essential but should not delay the immediate intervention of stopping the transfusion and starting a saline infusion.

3. While taking vital signs, a critically ill male client grabs the nurse's hand and asks the nurse not to leave. What action is best for the nurse to take?

• A. Pull up a chair and sit beside the client's bed.
• B. Reassure the client that you will return shortly.
• C. Ask another nurse to stay with the client.
• D. Continue taking vital signs and then leave the room.

Correct answer: A

Rationale: The best action for the nurse to take in this situation is to pull up a chair and sit beside the client's bed. By doing so, the nurse can provide emotional support and comfort to the critically ill patient who is feeling vulnerable. Sitting with the client also shows empathy and a willingness to listen to the client's needs. Reassuring the client that the nurse will return shortly (Choice B) may not address the immediate need for emotional support. Asking another nurse to stay with the client (Choice C) may not establish the same level of connection and comfort as sitting with the client personally. Continuing to take vital signs and then leaving the room (Choice D) disregards the client's emotional needs in that moment.

4. In a client with heart failure receiving digoxin (Lanoxin) and furosemide (Lasix), which laboratory value requires immediate intervention?

• A. Serum potassium of 4.0 mEq/L
• B. Blood glucose of 200 mg/dl
• C. Serum creatinine of 1.5 mg/dl
• D. Serum potassium of 3.2 mEq/L

Correct answer: D

Rationale: A serum potassium level of 3.2 mEq/L is low and concerning in a client receiving digoxin and furosemide. Hypokalemia increases the risk of digoxin toxicity, leading to life-threatening arrhythmias. Therefore, immediate intervention is necessary to prevent complications. The other options, serum potassium of 4.0 mEq/L, blood glucose of 200 mg/dl, and serum creatinine of 1.5 mg/dl, are within normal limits and do not pose immediate risks to the client in this scenario.

5. A client is admitted with a diagnosis of septic shock. Which clinical finding requires immediate intervention?

• A. Blood pressure of 90/60 mmHg
• B. Temperature of 100.4°F
• C. Heart rate of 120 beats per minute
• D. Urine output of 30 ml/hour

Correct answer: C

Rationale: In a client with septic shock, a heart rate of 120 beats per minute is a critical clinical finding that requires immediate intervention. A rapid heart rate can indicate worsening sepsis and inadequate tissue perfusion. Correcting the underlying cause of the tachycardia and stabilizing the heart rate is crucial in managing septic shock. The other options, while important, do not represent an immediate threat to the patient's condition. A blood pressure of 90/60 mmHg may be expected in septic shock, a temperature of 100.4°F is mildly elevated, and a urine output of 30 ml/hour, though decreased, may not be an immediate concern in the context of septic shock.

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