A 45-year-old female presents to the EP lab with complaints of palpitations and the following 12 lead ECG that was recorded in the emergency room 2 weeks prior. 12 Lead ECG: What do you observe? Answer: Retrograde P Waves Notice the retrograde P waves,...
Ohm’s Law Ohm’s Law is a formula used to calculate the relationship between voltage, current and resistance in an electrical circuit. This was named for German physicist Georg Ohm (1789-1854) and addresses the key principles in circuits. If you know...
Voltage (V), Current (I) & Impedance (R) Relationship: A common analogy for the VIR relationship utilizes a standard garden hose. How it works: In this example, the spigot is the force or push (V) of the water flow (current – I) through the hose...
Voltage: This is Victor, he represents Voltage (V) today. The terms “amplitude” and “voltage” are often used interchangeably. Voltage is the force or push that causes electrons to move through a circuit. Current: These blue circles represent flow of electrons or...
What are double potentials? Answer: The term double potential literally means two potentials or signals. Most referred to in the atrium, double potentials are atrial electrograms with two discrete deflections per beat separated by an isoelectric or low...
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