Cardiac resuscitation with prompting and defibrillation in separate units and with an activity sensor for detecting patient initiated movement

A resuscitation system for use by a rescuer for resuscitating a patient, comprising:

• at least two high-voltage defibrillation electrodes;
• a first electrical unit comprising circuitry for providing resuscitation prompts to the rescuer;
• a second electrical unit separate from the first unit and comprising circuitry for providing defibrillation pulses to the electrodes;
• a circuitry for providing at least one electrical connection between the first and second units;
• an activity sensor adapted to be worn by the patient and capable of providing an output from which a patient initiated current activity can be estimated, wherein the patient initiated current activity comprises overall body activity rather than cardiac activity;
• and
• at least one processor configured for estimating the patient initiated current activity by analyzing the output of the activity sensor.