i think i had always been confused about this... for anyone else who is confused... i looked this up and an EKG (or ECG) is an electrocardiogram. Also, an echocardiogram is sometimes called a cardiac ultrasound.

For more extensive info:

http://www.heartsite.com/html/ekg.html

http://www.heartsite.com/html/echocardiogram.html

thanks for clearing that up, Bobby.

~ waves ~