Can one of you lovely ladies (not to make assumptions
) break that down for me Barney Style? I've looked it up in all of my books, but none of them seem to give a real thorough explanation.
About all I've been able to glean so far is that the SA node is misfiring and that it's generally a bad thing.
Apr 24, '04
It is a rhythm that occurs when there is a fast, strong stimulus from an ectopic focus above the ventricles and belw the SA node and the heart conducts every beat. rate 150-250 bpm. Example: It can result from inadequate refilling time, similar to squeezing a sponge fast under water and never allowing it to open or fill completely. This can result in low blood pressure and a person's heart cannot sustain this thythm for long because the muscle itself gets tired. This comes from a book entitled "Flip and See ECG" very, very simple to understand things using this book. I hope this helps. I am Linda, Cardiac Nurse. To make even more visual think of the water as your SA node, the sponge as the inside of the ventricles and your hand is the ectopic focus causing the water not to communicate with the sponge, since the ectopic focus is below the SA node you doing your job by firing and because you do not get a answer from the ventricles you start firing a faster response but no matter how hard you work that hand does not let the ventricles fill up instead it just squeezes harder so after awhile your hand gets tired.
Last edit by paralegalrn on Apr 24, '04
: Reason: forgot something