Question

Four electrodes of equal size with a pair from each of two channels is known as what technique?

a. Bipolar technique
b. Unipolar technique
c. Quadripolar technique
d. Active electrode

Answer 1

The technique described is the quadripolar technique, commonly used in ECGs for heart function analysis and EEGs for brain activity measurement.

Step-by-step explanation:

The technique using four electrodes of equal size with a pair from each of two channels is known as the quadripolar technique. This setup is often utilized in medical diagnostic procedures such as electrocardiograms (ECG) and electroencephalography (EEG). In an ECG, for instance, electrodes are carefully placed on the body to record the heart's complex electrical signals, which can be analyzed to reveal details about heart function. Similarly, an EEG uses an array of electrodes around a person's head to measure the brain's electrical activity.