Maybe it would help to spell out what "MI" is. It will not help me help, as I know nothing about the mechanics of the T Wave (on a EKG I assume). Still, more information from you may help get useful input.
Thanks thats a good idea. An MI is mycardial infarction and yes the t wave is on the ECG.
Hi,
Do you mean elevated T waves as in "peaked", if so this can an indication of hyperkalemia.
If a person is actively having an MI they will have elevated ST segments in the leads associated with the area of there heart that is being damaged.
The Q wave that you read about is a sign that can be seen on the EKG that indicates someone has had an MI in the past, greater than 24 hours ago.
Hope this is of some help...
I think your question doesn't actually have a specific answer - during and after myocardial infarction you will often see T wave abnormalities but as time passes and the injured site heals the T wave may return to normal or maintain some degree of "abnormality". As to specifics of the T wave (positive, negative etc) it apparently varies according to the location and severity of the given infarct. I agree with FFMEDIC that ST segment elevation and depression is more consistent in regards to MI.
http://content.onlinejacc.org/cgi/content/abstract/28/6/1514
The above article details two groups of patients with infarcts whose ekg held opposite T-Wave ekg patterns post MI depending on the location/severity of the MI. Hope that helps somewhat.