Quote from edeefbaby
Hi everybody, I'm a current nursing student and I hope this isn't a stupid question. How would you be able to tell the difference between a premature ventricular contraction and an ST segment depression. I know that PVCs can be multifocal and don't always occur at the area of the ST segment but how would you know if it does?
I'm not going to tell you the answer but I will at least point you in the right direction to find the answer for yourself. You'll learn this stuff more concretely this way.
First off, these things are two completely separate things, aside from the fact that they can be seen on an EKG. ST segment deviations (elevation or depression) only refer to what happens to the ST segment. The ST segment is only part
of the entire complex from the start of the P wave through the end of the T (or sometimes U) wave. A PVC a different appearing complex on an EKG that shows that the ventricles "fired" prematurely. It is possible for a PVC to have ST segment changes because the other complexes also have that same ST segment change.
Now that I have started things off for you, I suggest you review your EKG material because this stuff should all be explained in depth to you. If this still doesn't make sense to you, there are lots of resources around to help you understand this. Nurses that do EKGs or Paramedics (because they all do it) can also be a resource to help you understand this stuff.
Don't get me wrong, I'm not saying that this is a stupid question. To me, this shows that you're confused about something and you need help to figure this stuff out. That , to me, says that this is a great question for you, and I'm glad you're asking it! For a lot of us, it is a very basic thing but once upon a time, we didn't know this stuff... I hope this gets you started down the path of discovering the subtle world of the EKG.