Hi fellow nurses, I've been studying for my ACLS, and although I'm probably overthinking, I was hoping to get clarification on Symptomatic pt vs Unstable pt. To take bradyarrhytmia as an example: As I understand it, the pt will have symptoms (ie sob, loc change, potentially chest pain, low bp etc)- so he/she is symptomatic. But, at what point is he/she considered to be unstable? Wouldn't the above symptoms be considered to make the pt unstable? After all, they are not the norm, right? Don't they point at decreasing perfusion? Pls help me clarify. Thanks in advance!