A healthy 4-year-old child has a left flank mass. Computerized tomography (CT) scan of the abdomen shows a localized renal mass. Radical nephrectomy is performed; the histology shows clear cell sarcoma of the kidney. The MOST appropriate next step in the management is

A healthy 4-year-old child has a left flank mass. Computerized tomography (CT) scan of the abdomen shows a localized renal mass. Radical nephrectomy is performed; the histology shows clear cell sarcoma of the kidney. The MOST appropriate next step in the management is

Which type of leukemia has been MOST likely developed in a 2-year-old child with Down syndrome in the neonatal period?

A 10-mo-old boy has a left suprarenal mass. Surgery is accomplished with complete removal of the mass as well as the non-adherent lymph nodes; surgical biopsies are taken during surgery. The histology reveals poorly differentiated neuroblastoma with microscopic ipsilateral lymph nodes involvement. The contralateral lymph nodes are negative. Of the following, the BEST therapeutic approach for this infant is

Hemangiomas are the most common benign tumors of infancy, occurring more in full-term infants. Of the following, the most common risk factor of development of hemangioma is

In preparing a preschool-aged patient for an injection, the most appropriate nursing intervention is to: