Pediatric Case Study – Appendicitis R.O. is a 12-year-old girl who lives with her family on a farm in a rural community. R.O. has four siblings who have recently been ill with stomach pains, vomiting, diarrhea, and fever. They were seen by their primary care provider (PCP) and diagnosed with viral gastroenteritis. A week later, R.O. woke up at 0200 crying and telling her mother that her stomach “hurts really bad!” She had an elevated temperature of 37.9° C (100.2° F). R.O. began to ...