Originally Posted by cassiek
My vet and I did discuss an ECG and something we could potentially look into doing.
An ECG (or EKG) is an electr
ocardiogram, which is actually different from the ultrasound. It shows the electrical activity of the heart (you know, those graph thingies with the needle that goes up and down). The echo
cardiogram is a visualization of the heart in action using ultrasound. The echocardiogram, interpreted by a cardiologist, is the best way to determine what the nature of the heart condition is. They are expensive though.