Nursing Elites

1. What explanation should the nurse provide to the parents of a 6-month-old infant diagnosed with cystic fibrosis?

• A. It is a condition affecting the respiratory and digestive systems.
• B. It is an autoimmune disorder affecting multiple organs.
• C. It is a genetic disorder that can be managed with medication.
• D. It is a condition caused by prenatal exposure to toxins.

Correct answer: A

Rationale: The correct answer is A. Cystic fibrosis is a genetic disorder that primarily affects the respiratory and digestive systems. It results in the production of thick, sticky mucus that can clog the lungs and obstruct the pancreas. This explanation is crucial for parents to understand the impact of the condition on their child's health. Choice B is incorrect because cystic fibrosis is not an autoimmune disorder. Choice C is partially correct in that cystic fibrosis is a genetic disorder, but it requires a comprehensive management approach beyond just medication. Choice D is incorrect as cystic fibrosis is not caused by prenatal exposure to toxins but rather by inheriting specific genetic mutations.

2. 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 and should be emphasized to parents. Lead poisoning can manifest with various symptoms, but irritability is particularly common in children exposed to lead. Abdominal pain (Choice A) is not a typical symptom of lead poisoning in toddlers. While constipation (Choice B) can occur, it is less specific and less common than irritability. Frequent urination (Choice D) is not a typical symptom associated with lead poisoning in toddlers and is less relevant for parents to recognize in this context.

3. Based on developmental norms for a 5-year-old child, a healthcare professional decides to withhold a scheduled dose of digoxin (Lanoxin) elixir and notify the healthcare provider. Below what apical pulse did the healthcare professional withhold the medication?

• A. 60 beats/min
• B. 70 beats/min
• C. 90 beats/min
• D. 100 beats/min

Correct answer: C

Rationale: For a 5-year-old child, an apical pulse below 90 beats/min is an indicator to withhold digoxin. Digoxin is a medication that affects the heart, and in pediatric patients, monitoring the pulse rate is crucial due to the risk of bradycardia (slow heart rate) as a potential side effect. In this case, an apical pulse of 90 beats/min or lower indicates a heart rate that may be too slow for a child of this age, warranting the withholding of digoxin and prompt notification of the healthcare provider. Choices A, B, and D are not within the critical range specified for withholding digoxin in a 5-year-old child and would not necessitate withholding the medication.

4. The mother of a 5-year-old child with eczema is getting a check-up for her child before school starts. What will the nurse do during the visit?

• A. Change the bandage on a cut on the child’s hand.
• B. Assess the compliance with treatment regimens.
• C. Discuss systemic corticosteroid therapy.
• D. Assess the child’s fluid volume.

Correct answer: B

Rationale: During a check-up for a child with eczema, assessing compliance with treatment regimens is a key nursing intervention. This helps ensure that the child is following the prescribed treatment plan effectively, which is crucial in managing eczema and preventing flare-ups. Changing a bandage on a cut is not directly related to managing eczema. Discussing systemic corticosteroid therapy may be part of the visit, but assessing compliance is more immediate and essential. Assessing the child’s fluid volume is important for overall health assessment but not specifically related to managing eczema.

5. When teaching a class about trisomy 21, the instructor would identify the cause of this disorder as:

• A. nondisjunction.
• B. X-linked recessive inheritance.
• C. genomic imprinting.
• D. autosomal dominant inheritance.

Correct answer: A

Rationale: Trisomy 21, also known as Down syndrome, is caused by nondisjunction, which is an error in cell division that leads to the presence of an extra chromosome 21. This additional chromosome alters the normal genetic makeup, resulting in the characteristics associated with Down syndrome. Therefore, the correct answer is nondisjunction (Choice A). Choices B, C, and D are incorrect because Trisomy 21 is not caused by X-linked recessive inheritance, genomic imprinting, or autosomal dominant inheritance. Understanding the specific genetic mechanism involved in Trisomy 21 is crucial for grasping the basis of this chromosomal disorder.

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