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 obstructive pulmonary disease (COPD) is admitted with an exacerbation. Which assessment finding requires immediate intervention?

• A. Barrel-shaped chest
• B. Use of accessory muscles
• C. Oxygen saturation of 85%
• D. Inspiratory crackles

Correct answer: C

Rationale: An oxygen saturation of 85% is significantly low for a client with COPD and requires immediate intervention to prevent hypoxemia. Oxygen saturation below 90% indicates poor oxygenation and poses a risk of tissue hypoxia, making it a critical finding that needs prompt attention. Barrel-shaped chest and inspiratory crackles are commonly seen in clients with COPD and do not necessitate immediate intervention. The use of accessory muscles may indicate increased work of breathing but does not pose the same level of immediate threat as severe hypoxemia.

3. A 12-year-old boy has a body mass index (BMI) of 28, a systolic pressure, and a glycosylated hemoglobin (HBA1C) of 7.8%. Which selection indicates that his mother understands the management of his diet?

• A. One whole-wheat bagel with cream cheese, two strips of bacon, six ounces of orange juice.
• B. Two eggs with toast and butter, 8 ounces of milk.
• C. Fresh fruit salad with low-fat yogurt.
• D. Pancakes with syrup and sausage links.

Correct answer: C

Rationale: The correct answer is C. Fresh fruit salad with low-fat yogurt is a healthier choice for managing the diet of a 12-year-old boy with a high BMI and elevated HBA1C. This choice provides a good balance of nutrients, fiber, and low-fat content, helping to lower BMI and maintain healthy blood sugar levels. Choices A, B, and D are less ideal as they contain higher levels of refined carbohydrates, saturated fats, and sugars, which can contribute to weight gain and worsen blood sugar control in this scenario.

4. A mother brings her 6-year-old child, who has just stepped on a rusty nail, to the pediatrician's office. Upon inspection, the nurse notes that the nail went through the shoe and pierced the bottom of the child's foot. Which action should the nurse implement first?

• A. Cleanse the foot with soap and water and apply an antibiotic ointment
• B. Provide teaching about the need for a tetanus booster within the next 72 hours.
• C. Have the mother check the child's temperature every 4 hours for the next 24 hours
• D. Transfer the child to the emergency department to receive a gamma globulin injection

Correct answer: A

Rationale: The correct first action for the nurse to implement is to cleanse the foot with soap and water and apply an antibiotic ointment to prevent infection. In cases of puncture wounds like stepping on a rusty nail, the immediate concern is to reduce the risk of infection. Providing teaching about the need for a tetanus booster within the next 72 hours is important as well, but it should come after the wound is cleansed. Checking the child's temperature and transferring to the emergency department for a gamma globulin injection are not the immediate priorities in this scenario.

5. For the past 24 hours, an antidiarrheal agent, diphenoxylate, has been administered to a bedridden, older client with infectious gastroenteritis. Which finding requires the nurse to take further action?

• A. Tented skin turgor
• B. Decreased bowel sounds
• C. Persistent diarrhea
• D. Dehydration

Correct answer: A

Rationale: The correct answer is A. Tented skin turgor is a sign of dehydration, which can be exacerbated by the use of antidiarrheals in clients with gastroenteritis. In dehydration, the skin loses its elasticity and becomes less resilient when pinched. Therefore, the nurse should take immediate action upon noticing tented skin turgor to prevent further complications. Choices B, C, and D are incorrect because decreased bowel sounds, persistent diarrhea, and dehydration are expected findings in a client with gastroenteritis who has been administered an antidiarrheal agent.

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