What is the purpose of the water/electrolyte-based matrix in self-adhesive defibrillator pads?

The purpose of the water/electrolyte-based matrix in self-adhesive defibrillator pads is to improve conductivity. This conductive gel is crucial for ensuring that the electrical energy from the defibrillator is efficiently transmitted to the patient's heart during defibrillation. When an electric shock is delivered, it must pass through the skin, which has a high resistance. The presence of the electrolyte-based matrix reduces this resistance, allowing for better electrical conduction. This leads to more effective defibrillation and increases the chance of restoring a normal heart rhythm in a patient experiencing cardiac arrest.

While other aspects, such as adhesion and cost, can be important in the design and usability of defibrillator pads, they do not directly relate to the primary function of the water/electrolyte matrix, which is to enhance the conductivity necessary for effective shock delivery.