Correct Answer: D

Rationale: The correct answer is D: Serum immunoglobulin E (IgE) level. An elevated serum IgE level is commonly associated with atopic dermatitis, reflecting an allergic response. Choice A, erythrocyte sedimentation rate, is not typically used to diagnose atopic dermatitis. Choice B, potassium hydroxide prep, is used to identify fungal infections like ringworm, not for diagnosing atopic dermatitis. Choice C, wound culture, is performed to identify microorganisms in a wound, not to diagnose atopic dermatitis.

Correct Answer: B

Rationale: The priority nursing intervention for a 3-year-old child with Kawasaki disease is monitoring for coronary artery aneurysms. Kawasaki disease can lead to coronary artery complications, making early detection crucial in preventing serious outcomes. Administering IV immunoglobulin is a standard treatment for Kawasaki disease but does not take precedence over monitoring for potential complications. Encouraging fluid intake and providing nutritional support are important aspects of care but are not the priority when compared to monitoring for coronary artery aneurysms to prevent long-term cardiac issues.

Correct Answer: B

Rationale: Invasive burn cellulitis is characterized by the burn developing a dark brown, black, or purplish color with discharge and a foul odor. This description aligns with the symptoms observed in the 15-year-old boy. Burn wound cellulitis (Choice A) typically presents with erythema, edema, warmth, and tenderness at the burn site, without the characteristic changes seen in this case. Burn impetigo (Choice C) is a superficial infection characterized by honey-colored crusts, not consistent with the purplish color and foul odor described. Staphylococcal scalded skin syndrome (Choice D) is a condition caused by exotoxins produced by Staphylococcus aureus, leading to widespread desquamation of the skin, but it does not typically present with the specific findings mentioned in the scenario.

Correct Answer: B

Rationale: Administering factor VIII in the morning on scheduled days ensures that there is a consistent level of the plasma component throughout the day, especially when the child is active. This timing helps to maintain adequate levels of factor VIII to prevent bleeding episodes. Choice A is incorrect because administering factor VIII only when a bleed is suspected would not provide the consistent prophylactic coverage needed for children with hemophilia. Choice C is incorrect as bedtime administration may not be practical for ensuring the plasma component is available during the child's active hours. Choice D is incorrect because administering factor VIII on a regular schedule, rather than at specific times of the day, may not optimize its effectiveness in preventing bleeding episodes.

Correct Answer: A

Rationale: When assessing a 2-year-old child with abdominal pain and adequate perfusion, it is important to examine the child in the parent's arms. This approach helps reduce the child's anxiety, provides comfort, and can facilitate a more accurate assessment. Palpating the painful area of the abdomen first (choice B) may cause discomfort and increase anxiety in the child. Placing the child supine and palpating the abdomen (choice C) without considering the child's comfort and security may lead to resistance and inaccurate assessment. Separating the child from the parent to ensure a reliable examination (choice D) can further increase anxiety and hinder the assessment process. Therefore, examining the child in the parent's arms (choice A) is the most appropriate and effective approach in this scenario.