Originally Posted by eye2797
Is it possible to have an abnormal EKG, but a normal Echo?
I thought they both did somewhat the same test. also what do the numbers mean on he ekg, like the QRS. is there somewhere to find out the range these numbers can be
Complex question and unable to give all the parameters and conclusions.
To start regarding EKG. It is an electrical output of the beating heart. The beginning of the wave is ground or zero output; it will be a positive if above grd and negative if below.
QRS wave: The beginning of the positive wave (grd) is "Q"; then a steep rise to a peak "R" and steeply decending to grd or "S". For abnormally wide (point Q to R could indicate right or left bundle branch block (RBBB, LBBB), ventricular rhythm, hyperkalaemia, etc.
Prior to QRS there is a positive blip and the frequency will show heart rate.
ST segment follows QRS. Elevation includes acute MI, variants, peridarditis, etc.
ST segment depression possible MI, ventricular hypertrophy, LBBB, etc.
There are pathological Q waves...... etc.
EKG uses a transducer (converts sound to electronic pulses) that provides a feedback to the screen giving a visual view of the heart. lt will measure
dimensions. color code blood flow through the valves, computerized calculation provides a numerical values as output....etc
EKG's are less expensive than an echo and that procedure would be the first test. An echo will provide values that can be used as a reference for later tests to determine stability of patient or lack thereof. An abnormal EKG requires further testing.
Do you have any specific questions?