Correct Answer: C

Rationale: A set of cloth and hand puppets is safe and developmentally appropriate for a 3-year-old with a spica cast.

Correct Answer: D

Rationale: For a lumbar puncture in a school-age child, EMLA cream should be applied 2.5 hours before the procedure. EMLA is commonly used to numb the skin, reducing pain and discomfort for the child during the procedure.

Correct Answer: A

Rationale: The correct answer is A. Duchenne muscular dystrophy is an X-linked recessive disorder that primarily affects males. It is crucial for the nurse to explain to the parents that this condition follows an inheritance pattern where the gene mutation responsible for the disorder is located on the X chromosome. Males have only one X chromosome, so if they inherit the mutated gene, they will develop the disease. Females, on the other hand, have two X chromosomes, providing a backup copy that can compensate for the mutation. Understanding this inheritance pattern is essential for family planning decisions, as the risk of passing on the disorder to future children can be explained based on this genetic inheritance.

Correct Answer: A

Rationale: Creating a quiet environment is the priority intervention as it helps reduce irritability and stress in children with Kawasaki disease. This intervention can promote a soothing atmosphere for the child, which may help in managing their symptoms effectively. Once the child is in a peaceful setting, further interventions such as addressing nutritional needs or skincare can be addressed.

Correct Answer: A

Rationale: Fussiness and low-grade fever are common side effects of immunizations in infants and usually resolve on their own. It is important for the nurse to educate the mother about these expected reactions to help ease her concerns. Immediate evaluation or giving aspirin to an infant for fever is not necessary or safe, as aspirin can be harmful to infants.