In general, there are two types of AEDs: fully automated and semi-automated. Semi-automated AEDs:
A. automatically charge up and deliver the appropriate electrical shock.
B. have only one operational button.
C. allow the operator to attach the device to the patient, push a button to turn on the power, and let the device do the rest.
D. indicate to the operator when a shock is advised so he can push another button to deliver the shock.
