What "inferior Q waves may be a normal variant mean?

[Dorothy88021]

I'm confused, I'm a health 35 year old female who recently had a physical.  ECG came back saying Rule out old inferior infarct but inferior Q waves may be a normal variant... what does all this mean?  Did I have a heart attack at some point in my life?  

[kenkeith]

There are some electrocardiographic "normal variant" abnormalities which are not suggestive of any underlying heart disease. But if those abnormalities are more pronounced, or occur in a certain context, then they may be interpreted differently. For instance the presence of the Q wave in the absence of ST and T wave abnormality generally indicates prior or healed heart attack. Although the presence of a Q wave with a 40 msec duration is sufficient for diagnosis. The condition of an old MI has been ruled out.

Thanks for sharing and take care.