Correct Answer: C

Rationale: In a child with suspected Addison disease, the presence of hyperpigmentation (bronzing of the skin) and hypotension are key clinical findings. Hyperpigmentation is due to increased ACTH stimulation, resulting in melanocyte stimulation. Hypotension occurs due to decreased aldosterone production and subsequent sodium loss. Choices A, B, and D are incorrect. Arrested height and increased weight are not typical of Addison disease; thin, fragile skin and multiple bruises are more indicative of conditions like Cushing's syndrome; blurred vision and enuresis are not typically associated with Addison disease.

Correct Answer: D

Rationale: The correct answer is Glargine (Lantus) as it has the longest duration of action among the insulins listed, lasting 12 to 24 hours. Lispro (A) and Regular (B) are rapid-acting insulins with shorter durations of action. NPH (C) is an intermediate-acting insulin with a duration of action of about 12-16 hours. Therefore, Glargine is the correct choice for the insulin with the longest duration.

Correct Answer: D

Rationale: Teaching seizure first aid to family members is essential as it empowers them to respond effectively during a seizure. Keeping a diary of seizure activity is important for tracking patterns and triggers but is not directly related to immediate safety. Administering antiepileptic medication only when a seizure occurs is not recommended as medications should be administered as prescribed by healthcare providers. Restricting the child's activities to prevent seizures is not appropriate as children with epilepsy should be encouraged to lead active lives while taking necessary precautions.

Correct Answer: C

Rationale: Visible peristalsis and weight loss are classic clinical manifestations of pyloric stenosis. Visible peristalsis refers to the wave-like movements in the abdomen caused by the stomach trying to empty into the intestines due to the obstruction at the pylorus. Weight loss is often seen due to inadequate feeding and vomiting associated with this condition. Choices A, B, and D are not typical of pyloric stenosis. Abdominal rigidity and pain on palpation are more indicative of conditions like peritonitis. A rounded abdomen and hypoactive bowel sounds are more suggestive of conditions like constipation or bowel obstruction. Distention of the lower abdomen and constipation are not specific to pyloric stenosis and may be seen in various gastrointestinal issues.

Correct Answer: B

Rationale: After a cardiac catheterization, the priority nursing care for a 3-year-old child is monitoring the site for bleeding. This is essential to promptly identify and address any signs of bleeding or hematoma formation, which are potential complications of the procedure. Encouraging early ambulation may be beneficial post-procedure but ensuring site integrity takes precedence. Restricting fluids until blood pressure stabilization is not a standard post-catheterization practice, as adequate hydration is crucial for recovery. Comparing the blood pressure of both lower extremities is not a priority immediate nursing action after a cardiac catheterization in a pediatric patient.