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Doctor insights on: Can A Person Have A Heart Attack And An Ekg Not Detect It

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Can a person have a heart attack, but have a normal ekg?

Can a person have a heart attack, but have a normal ekg?

Yes: Especially early in the course of a heart attack the ekg can be normal. Usually some abnormalities become present with time. A heart attack cannot be excluded based on the ekg alone. ...Read more

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Dr. Ana Adelstein
2 doctors shared insights

Electrocardiogram (Definition)

Electrocardiogram (ecg, ekg) is a print-out of the electrical forces detected by electrodes on the chest wall, as electricity travels through the heart with each heart beat. The electrodes are placed in different positions, and each position "sees" the electrical activity of the heart from its own vantage point. Abnormalities in signal detected at chest surface ...Read more


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What would a person see on an EKG of someone who is having a heart attack?

What would a person see on an EKG of someone who is having a heart attack?

Impossible: There are numerous diagnosable problems seen on ekg during and after a myocardial infarction. The question here on this simple app, however, is way too broad and too ambiguous to answer with any confidence. ...Read more

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How can an EKG if i'm having a heart attack?

How can an EKG if i'm having a heart attack?

ST Elevation: Changes on an ekg can be highly suggestive of a heart attack (especially major ones called st elevation mi's (a segment on the ekg called the st segment is noted to be higher than the baseline) but that does not mean a normal ekg can exclude a less severe heart attack. ...Read more

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Can you see heart attack changes on a 3 lead EKG?

Can you see heart attack changes on a 3 lead EKG?

Well: I'm electrocardiogram there are usually changes that reflect haven't had a heart attack or myocardial infarction. However electrical abnormalities in the conduction system of the heart can't look like a heart attack or infarct. Also some infarcts do not show up on the EKG. Most the time the EKG is abnormal and shows a prior heart attack or while you're having a heart attack itshows the acute changes of a heart attack but it's not 100% ...Read more

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A major heart attack would always show up on EKG ?

A major heart attack would always show up on EKG ?

Not always: For example, with balanced ischemia, the changes in the ekg for one area are balanced by changes in another. But as a general rule, major mi does have significant changes. ...Read more

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Would a heart attack usually show up on a 3 lead EKG?

Would a heart attack usually show up on a 3 lead EKG?

It can : A complete ECG is all 12 leads. Having said that a 3 lead ECG can give suspicion to prior injury or infarct, but not confirm for as confidently. Also matters which 3 leads are being traced, contiguous or not so that it would be more or less accurate if it made an anatomic sense. ...Read more

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Is it normal to have a normal EKG with a heart attack?

Is it normal to have a normal EKG with a heart attack?

Occurs: It happens al the time, that is why cardiac enzymes are measured in the blood. Subendocardial infarcts which are the most common, may present with normal or near normal electrocardiograms. If at the emergency room when the heart attack occurs, cardiac enzymes may still be normal. It takes 4 hours of myocardial death for troponins to begin rising. Clinical suspicion, infarct syndrome, cardiaccath. ...Read more

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Which tests are recommended after EKG shows heart attack?

Which tests are recommended after EKG shows heart attack?

Depends: We may find surreptitiously in doing ekg that they may be an old heart attack. We work up the heart to find out if there is clogging of arteries or by echo how well the heart is functioning. If it is acute with symptoms and ekg suggestive of heart attack, the person is admitted to the hospital for blood tests and proper treatment by the cardiologist either invasively or by meds. ...Read more

Dr. Creighton Wright
3,921 doctors shared insights

Heart Attack (Definition)

Heart attack is a life-threatening condition in which the blood vessels that supply the heart becomes occluded and thus the heart itself is not longer receiving any blood flow. Without this blood flow, the heart muscle dies and cannot pump blood to the ...Read more


Dr. Creighton Wright
1,139 doctors shared insights

Myocardial Infarction (Definition)

Myocardial infarction, or heart attack, is a condition where part of the heart muscle loses its blood supply due to calcification in and ...Read more