Correct Answer: C

Rationale: Administering prescribed pain medication at the first sign of pain is crucial in managing sickle cell anemia-related pain effectively. Prompt administration helps prevent the pain from escalating and becoming severe, enhancing the child's comfort and quality of life. Cold compresses, rest, and diet modifications may play supportive roles but are not as directly impactful in addressing acute pain episodes associated with sickle cell anemia.

Correct Answer: A

Rationale: The correct instruction for the nurse to provide to the parents is to wash the child's bed linens and clothing in hot soapy water. This is essential to eliminate head lice as they can survive on bedding and clothing. It is also important to wash any other items that the child may have used or come into contact with, such as brushes and combs, to prevent reinfestation. Rewashing the child's hair following an isolation period is not necessary, and taking the child to a hair salon for a shampoo and shorter haircut is not a recommended treatment for head lice.

Correct Answer: B

Rationale: Mixing formula with rice cereal is beneficial for infants with GERD as it thickens the feed, helping to reduce the risk of reflux. This can aid in promoting adequate nutrition and minimizing symptoms associated with GERD in infants.

Correct Answer: A

Rationale: In a child with a history of iron-deficiency anemia presenting with symptoms of fatigue, pallor, and shortness of breath, the priority action for the nurse is to administer iron supplements as prescribed. Iron supplementation is essential to treat iron-deficiency anemia and improve the child's symptoms promptly.

Correct Answer: B

Rationale: Rinsing the mouth after using corticosteroid inhalers is crucial as it helps prevent oral thrush, a common side effect associated with these medications. This practice reduces the risk of developing fungal infections in the mouth and throat, maintaining optimal oral health during asthma treatment.