What's going on? According to Dr. Kaplan, one of 4 things: normal EEG activity, focal abnormality, global abnormality, seizure. In this case, even if you didn't recognize the ~3Hz spike-wave complexes characteristic of an absense seizure, you could still figure out where you are by comparing side-to-side (odd numbers on the left; even numbers on the right) to know it's a global process of rhythmic activity (everything is firing together at about 3 cycles per second) that is high voltage (notice the scale in the bottom right corner showing our vertical scale at 300mV; normal is 70-100mV). This is one of the reasons we do hyperventilation during our EEGs.
No comments:
Post a Comment