The parents of a child with acid-base imbalance ask the nurse about mechanisms that regulate acid-base balance. Which statement by the nurse accurately explains the mechanisms regulating acid-base balance in children?

Legg-Calve-Perthes disease, also known as Perthes disease, is a childhood condition that affects the hip joint. It occurs due to a disruption in the blood supply to the femoral head (epiphysis), which can lead to bone death (avascular necrosis) and subsequent deformity of the femoral head.

It is essential for parents to understand that Legg-Calve-Perthes disease is not an acute illness that lasts for a short duration (Option A). It is a chronic condition that typically progresses over a period of months or years.

stating that it is caused by a virus, in (option C) is incorrect. The exact cause of Legg-Calve- Perthes disease is not fully understood, but it is not caused by a viral infection. It is believed to be related to multifactorial factors, including genetic and vascular factors.

stating that it primarily affects adults, in (option D) is incorrect. Legg-Calve-Perthes disease predominantly affects children, typically between the ages of 4 and 8 years old, during the period of rapid growth.

When caring for a neonate with a suspected tracheoesophageal fistula (TEF), nursing care should include elevating the head but giving nothing by mouth. Tracheoesophageal fistula is a condition where an abnormal connection exists between the trachea and oesophagus, leading to the passage of air and secretions between these structures. Feeding the infant orally can result in aspiration of feedings into the lungs, which can cause respiratory distress and complications. Therefore, it is important to keep the neonate in an upright position to reduce the risk of aspiration until a definitive diagnosis and treatment plan are established.

elevating the head for feedings in (option B), is not appropriate in this case as oral feedings should be avoided until the tracheoesophageal fistula is addressed.

avoiding suction unless the infant is cyanotic in (option C), is not correct. Suctioning may be necessary in neonates with suspected tracheoesophageal fistula to clear secretions and maintain a patent airway.

feeding glucose water only in (option D), is not an appropriate intervention for a neonate with a suspected tracheoesophageal fistula. In this situation, all oral feedings should be withheld until further evaluation and management.