A 6-month-old infant is diagnosed with cystic fibrosis. What explanation should the nurse provide to the parents about this condition?

Correct Answer: A

Rationale: The correct answer is A: 'It is a condition affecting the respiratory and digestive systems.' Cystic fibrosis is a genetic disorder that primarily affects the respiratory and digestive systems. It is caused by a defective gene that leads to the production of thick and sticky mucus in these organs. This mucus can clog airways in the lungs and block the ducts in the pancreas, affecting digestion. Choice B is incorrect because cystic fibrosis is not an autoimmune disorder; it is a genetic condition. Choice C is partially correct in that cystic fibrosis is a genetic disorder, but merely managing it with medication oversimplifies the comprehensive care needed for individuals with cystic fibrosis. Choice D is incorrect as cystic fibrosis is not caused by prenatal exposure to toxins but is a genetic condition inherited from parents.

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.

Correct Answer: B

Rationale: Encouraging fluid intake is essential post-tonsillectomy to keep the throat moist, aid in healing, and prevent dehydration. Gargling with salt water may irritate the surgical site and is typically avoided to prevent discomfort and irritation. Providing hard candy can be harmful as it may cause trauma to the surgical area and should be avoided to prevent injury. Applying heat to the neck is not recommended as it can increase swelling and discomfort in the surgical region. Therefore, the correct instruction is to encourage fluid intake.

Correct Answer: D

Rationale: The correct answer is to teach seizure first aid to family members. This is crucial because family members need to know how to appropriately respond during a seizure to ensure the child's safety. Choice A has been corrected to emphasize that antiepileptic medication should be administered as prescribed, not just when a seizure occurs, to effectively manage the condition. Choice B, while important for overall health, is not directly related to seizure management. Choice C is not recommended as restricting activities may not prevent seizures and may hinder the child's quality of life.

Correct Answer: C

Rationale: The correct answer is to record the best of three attempts when using a peak flow meter. This method provides a more accurate measure of peak expiratory flow. Choice A is incorrect because using the device before taking medication may not reflect the actual peak flow, as medication can affect lung function. Choice B is incorrect as using the device during asthma attacks may not be feasible or safe, as the focus during an attack should be on managing symptoms rather than measuring peak flow. Choice D is incorrect because using the device after eating may not provide an accurate measurement of peak flow, as digestion can affect lung function temporarily.