Final answer:
Peritonitis is an inflammation of the peritoneum that can occur after surgery for a ruptured appendix. The nurse should be alert to symptoms such as severe abdominal pain, fever, increased heart rate, and changes in bowel movements.
Step-by-step explanation:
Peritonitis is an inflammation of the peritoneum, which is the lining of the abdominal cavity. In the case of a child who has had surgery for a ruptured appendix, peritonitis can occur as a complication.
The nurse should be alert to the development of peritonitis if the child exhibits symptoms such as severe abdominal pain, fever, increased heart rate, and changes in bowel movements. These symptoms may indicate an infection and the need for further medical intervention.