Step 6 - Defining the age of an infarction:

An acute infarction manifests ST segment elevation in a lead with a pathologic Q wave. The T waves may be either upright or inverted.

An old or age Indeterminate infarction manifests a pathologic Q wave, with or without slight ST segment elevation or T wave abnormalities.

MI - Overview | Go to Step 5 | Go to Step 7 | Back to Index