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. A client with a history of chronic heart failure is admitted with shortness of breath. Which assessment finding is most concerning?

• A. Crackles in the lungs
• B. Shortness of breath
• C. Elevated liver enzymes
• D. Heart rate of 100 beats per minute

Correct answer: C

Rationale: Elevated liver enzymes are concerning in a client with chronic heart failure as they may indicate liver congestion or worsening heart failure, requiring immediate intervention. While crackles in the lungs and shortness of breath are common in heart failure, elevated liver enzymes specifically point towards possible liver involvement due to heart failure. A heart rate of 100 beats per minute can be expected in a client with heart failure due to compensatory mechanisms, but elevated liver enzymes signal a more severe condition.

3. A client who is post-op day 1 after abdominal surgery reports pain at the incision site. The nurse notes the presence of a small amount of serosanguineous drainage. What is the most appropriate nursing action?

• A. Apply a sterile dressing to the incision.
• B. Reinforce the dressing and document the findings.
• C. Remove the dressing and assess the incision site.
• D. Notify the healthcare provider.

Correct answer: B

Rationale: The correct answer is to reinforce the dressing and document the findings. It is important to monitor the incision site closely after surgery, especially when there is a small amount of serosanguineous drainage. Reinforcing the dressing helps maintain cleanliness and pressure on the wound. Documenting the findings is crucial for tracking the client's progress and alerting healthcare providers if necessary. Applying a sterile dressing (Choice A) may not be needed if the current dressing is intact. Removing the dressing (Choice C) can increase the risk of contamination. Notifying the healthcare provider (Choice D) is not the first step for minor drainage on post-op day 1.

4. The nurse weighs a 6-month-old infant during a well-baby check-up and determines that the baby's weight has tripled compared to the birth weight of 7 pounds 8 ounces. The mother asks if the baby is gaining enough weight. What response should the nurse offer?

• A. Your baby is gaining weight right on schedule
• B. What food does your baby usually eat in a normal day?
• C. The baby is below the normal percentile for weight gain
• D. What was the baby's weight at the last well-baby check-up?

Correct answer: A

Rationale: The correct answer is A: 'Your baby is gaining weight right on schedule.' Tripling of birth weight by 6 months is a normal growth pattern in infants, indicating appropriate weight gain and development. Choice B is unrelated to the question as it focuses on the baby's diet rather than addressing the weight gain concern. Choice C is incorrect as tripling the birth weight is considered a healthy growth pattern, not below normal percentile. Choice D is irrelevant to the mother's question about the adequacy of weight gain.

5. While caring for a toddler receiving oxygen (02) via face mask, the nurse observes that the child's lips and nares are dry and cracked. Which intervention should the nurse implement?

• A. Ask the mother what she usually uses on the child's lips and nose.
• B. Apply a petroleum jelly (Vaseline) to the child's nose and lips.
• C. Use a topical lidocaine (Zylocaine viscous) analgesic for cracked lips.
• D. Use a water-soluble lubricant on affected oral and nasal mucosa.

Correct answer: D

Rationale: A water-soluble lubricant is safe to use in conjunction with oxygen therapy, unlike petroleum jelly which is flammable.

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