Configurable electrodes and sensors

A defibrillation electrode assembly for use in providing resuscitative treatment to a patient, comprising:

• at least one therapy pad comprising:
• a non-conductive substrate, and
• an electrically conductive layer in contact with the non-conductive substrate and configured to distribute a defibrillation current,
• wherein the at least one therapy pad has an aspect ratio of greater than 3:1.

A defibrillation electrode assembly for use in providing resuscitative treatment to a patient, comprising:

• a therapy pad comprising:
• a non-conductive substrate, and
• an electrically conductive layer in contact with the non-conductive substrate and configured to distribute a defibrillation current;
• and
• a sterile pouch configured to hold a chest compression sensor within a sterile space.