Louise fell, hit her head, and is unable to keep her eyes open for more than a few seconds. What should you do? (Select all of the correct answers)
A. Apply a defibrillator if available, even if not trained to do so.
B. Call emergency services immediately.
C. Commence neurological observations.
D. Conduct the emergency response if trained to do so.
E. Place a pillow under Louise's head and call emergency services.