Pediatric medical traumatic stress refers to a set of psychological and physiological responses of children and their families to pain, injury, serious illness, medical procedures, and invasive or frightening treatment experiences. These responses may include symptoms of arousal, re-experiencing, and / or avoidance. They may vary in intensity, are related to the subjective experience of the event, and can become disruptive to functioning.
Consult an NCTSN reading list  of research on medical traumatic stress.
After the Injury 
This website helps parents and caregivers understand children's reactions to injuries, and advises them on how they can help children respond in healthy ways. Visitors can download tip sheets, make care plans, consult self-care resources, and learn when—and how—to get additional help for their children. This site is developed and maintained by The Children's Hospital of Philadelphia.
Health Care Tool Box 
This website offers pediatric health care providers resources and guidance on adopting a trauma-informed perspective on patient care. The site explains the impact of traumatic stress reactions in children coping with illness, injury, and medical procedures; provides tools that can help health care professionals enhance their skills; and includes patient education materials that can be downloaded and shared with clients. This site is developed and maintained by The Children's Hospital of Philadelphia.