The IED checklist is an important tool for gathering information and identifying signs and symptoms of a head injury.
I stands for Injury and refers to physical damage to the body or body part of a Service member.
E stands for Evaluation and includes the acronym HEADS, which asks if the casualty has any of the following:
D stands for Distance and asks whether the Service member was within 50 meters of the blast. It is also important to record the approximate distance from the blast.