A 1-year-old is being screened for retinoblastoma based on family history of the disease. The nurse recognizes which sign as being most characteristic of the disease?

Option A ("Considering the presence of diabetes but treating the child the same as the other children") is not the best approach because children with diabetes require individualized care and monitoring.

Option B ("Limiting fluid intake during school hours") is not an appropriate intervention and could potentially worsen the child's diabetes management. Hydration is important, and fluid intake should be based on the child's needs.

Option C. Asking the child each day what was eaten for breakfast.

Children with type 1 diabetes, especially those prone to morning hypoglycemic episodes, can benefit from close monitoring of their dietary choices and blood glucose levels. Asking the child what was eaten for breakfast allows the school nurse to assess whether the child had an appropriate meal and whether the insulin dosage may need adjustment. It helps identify potential factors contributing to hypoglycemia and provides valuable information for the child's diabetes management.

Option D ("Checking several times a day for injuries because of participation in the physical education program") is a good practice but does not specifically address the management of morning hypoglycemia. It is essential to monitor the child's safety during physical activities, but addressing breakfast choices and insulin management is more directly related to managing morning hypoglycemia.

A. Shunted past the pulmonary circulation, causing pulmonary hypoxia: This option is not the primary reason for dyspnea in PDA. While there is shunting, it doesn't directly cause pulmonary hypoxia.

B. Circulated through the lungs again, causing pulmonary circulatory congestion: This option is partially correct but does not address the primary reason for dyspnea, which is the bypassing of the left side of the heart.

C. Circulated through the ductus from the pulmonary artery to the aorta, bypassing the left side of the heart.

In patent ductus arteriosus (PDA), a fetal blood vessel called the ductus arteriosus fails to close after birth. This allows oxygenated blood from the left atrium to be shunted directly from the aorta to the pulmonary artery, bypassing the normal route through the left side of the heart and into the systemic circulation. The shunting of oxygenated blood back into the pulmonary circulation can lead to increased pulmonary blood flow and circulatory congestion, causing symptoms such as dyspnea.

D. Shunted past cardiac arteries, causing myocardial hypoxia: PDA primarily affects the pulmonary circulation and left side of the heart, not the coronary arteries. Myocardial hypoxia is not the primary mechanism of dyspnea in PDA.