HESI Pediatrics Quizlet

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.

Correct Answer: B

Rationale: The correct answer is B: Clubbing of fingers. Clubbing of fingers is a common manifestation in children with tetralogy of Fallot due to chronic hypoxia. This condition causes the fingertips and nails to enlarge, creating a bulbous or club-like appearance. Slow respirations (Choice A) are not a typical clinical manifestation of tetralogy of Fallot. Decreased RBC counts (Choice C) may be seen in conditions like anemia but are not specific to tetralogy of Fallot. Subcutaneous hemorrhages (Choice D) are not a characteristic clinical manifestation of tetralogy of Fallot.

Correct Answer: B

Rationale: Burns on the lips and singed nasal hairs indicate inhalation injury, suggesting the child has inhaled hot gases or smoke. This presentation is common in cases where the respiratory tract is exposed to hot gases or smoke, leading to potential airway compromise. Choice A, chemical burn, is incorrect because there is no mention of exposure to chemicals, and the symptoms described are more indicative of inhalation injury. Choice C, electrical burn, is incorrect as there is no evidence of electrical involvement in the scenario provided. Choice D, hot-water scald, is incorrect because the presence of singed nasal hairs points more towards inhalation injury than a scald from hot water, emphasizing the need to prioritize airway management and respiratory support.

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: Teaching seizure first aid to family members is crucial in ensuring the child's safety during a seizure. This education empowers family members to respond effectively, protect the child from injury, and provide appropriate care. Option A is incorrect because antiepileptic medication should be administered as prescribed, not only when a seizure occurs. Option B, while important for overall health, is not specific to managing seizures. Option C is incorrect as there is no evidence that restricting activities prevents seizures, and it may negatively impact the child's quality of life without offering additional safety benefits.