jason,a 7-year-old boy,came to the attention of child welfare authorities after he visited the school nurse. His teacher told the nurse that jason was having trouble sitting at his desk and seemed to be in pain. When the nurse helped jason remove his clothing for a physical examination, blood was apparent on his underwear.The nurse suspected abuse and called child welfare investigators who discovered that Jason's mother (who was addicted to cocaine)had been prostituting both jason and his 13 year old sister to obtain money for drugs.Both children went to emergency foster care.