Nursing Elites

1. A 3-year-old child with a history of frequent respiratory infections is being evaluated for cystic fibrosis. What diagnostic test should the nurse anticipate will be ordered?

• A. Chest X-ray
• B. Sweat chloride test
• C. Pulmonary function test
• D. Sputum culture

Correct answer: B

Rationale: The sweat chloride test is the gold standard diagnostic test for cystic fibrosis as it measures the concentration of chloride in sweat. In cystic fibrosis, there is an abnormal transport of chloride across epithelial membranes, leading to elevated sweat chloride levels. A chest X-ray may show characteristic changes in the lungs associated with cystic fibrosis, but it is not a definitive diagnostic test. Pulmonary function tests assess lung function but do not specifically diagnose cystic fibrosis. Sputum culture may identify respiratory infections but does not confirm the diagnosis of cystic fibrosis.

2. What finding would the nurse expect to assess in a child with hypothyroidism?

• A. Nervousness
• B. Heat intolerance
• C. Smooth velvety skin
• D. Weight gain

Correct answer: D

Rationale: Weight gain is the expected finding in a child with hypothyroidism. Hypothyroidism leads to a slowed metabolism, which can result in weight gain. Choices A, B, and C are not typical findings in hypothyroidism. Nervousness and heat intolerance are more commonly associated with hyperthyroidism, where the body is in a state of overactivity. Smooth velvety skin is not a characteristic sign of hypothyroidism.

3. When caring for a child diagnosed with sickle cell anemia, what is the priority nursing intervention?

• A. Administering pain medication
• B. Ensuring adequate hydration
• C. Providing nutritional support
• D. Monitoring vital signs

Correct answer: A

Rationale: The priority nursing intervention when caring for a child with sickle cell anemia is administering pain medication. Pain management is crucial in sickle cell anemia due to vaso-occlusive crises that can cause severe pain. While ensuring adequate hydration, providing nutritional support, and monitoring vital signs are important aspects of care for a child with sickle cell anemia, addressing the pain with appropriate medication takes precedence to alleviate the child's suffering and improve their quality of life.

4. What should be included in the teaching plan for parents of an infant diagnosed with phenylketonuria (PKU)?

• A. Mental retardation occurs if PKU is untreated.
• B. Testing for PKU is done immediately after birth.
• C. Treatment for PKU includes lifelong dietary management.
• D. PKU is transmitted by an autosomal recessive gene.

Correct answer: A

Rationale: The correct answer is A: 'Mental retardation occurs if PKU is untreated.' Phenylketonuria (PKU) is a metabolic disorder that, if left untreated with dietary management, can lead to severe mental retardation due to the accumulation of phenylalanine. It is crucial for parents to understand the potential consequences of untreated PKU to emphasize the importance of early and consistent treatment. Choice B is incorrect because testing for PKU is typically done through newborn screening shortly after birth, not immediately. Choice C is incorrect as treatment for PKU primarily involves strict dietary management that restricts phenylalanine intake, not lifelong medications. Choice D is incorrect as PKU is inherited in an autosomal recessive pattern, meaning that both parents must pass on a mutated gene for the disorder to manifest.

5. A nurse is teaching the parents of a toddler about the signs and symptoms of lead poisoning. Which symptom should the nurse emphasize?

• A. Abdominal pain
• B. Constipation
• C. Irritability
• D. Frequent urination

Correct answer: C

Rationale: Irritability is a significant symptom of lead poisoning in toddlers. Lead exposure can lead to behavioral changes, including irritability, which is crucial for parents to recognize. While abdominal pain and constipation can occur in lead poisoning, they are not as specific or prominent as irritability. Frequent urination is not typically associated with lead poisoning in toddlers, making it a less relevant symptom to emphasize. By highlighting irritability, parents can be better equipped to identify potential signs of lead poisoning in their toddler.

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