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:

- H – Headaches and/or vomiting?
- E – Ear ringing?
- A – Amnesia, altered consciousness, and/or loss of consciousness?
- D – Double vision and/or dizziness?
- S – Something feels wrong or is not right?

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.