What is the purpose of the gel on the electrode during an EKG?

The gel on the electrode during an EKG primarily serves as a conductor of electrical signals between the skin and the electrode. When an EKG is performed, the electrical activity of the heart generates signals that need to be transmitted to the monitoring equipment for accurate interpretation. The gel enhances the conductivity of these signals by reducing the skin's impedance, which can otherwise interfere with the quality of the readings.

While there are other potential benefits of using gel, such as aiding in adherence and preventing skin irritation, its main and most critical function in the context of EKG monitoring is to facilitate the effective transmission of electrical currents. This is essential for obtaining precise and reliable ECG tracings, which are crucial for accurate diagnosis and treatment in clinical settings.