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Can an ekg read false positive.

I had an 2 ekgs done about 1 month apart. The first showed otherwise normal. The second was during a bout of tachycardia and showed left atrial enlargement as well as possible right atrial enlargement. Can your heart structure change that quickly, or was it a false positive/negative?
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Avatar universal
EKGs are very useful tools for evaluating heart function, but yes, false positives can happen for a variety of reasons:  Things like electrode placement and even a person's individual anatomy.

If you have a question about your EKG, call your doctor and tell him/her that you're worried and need an explanation.
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