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Doctor insights on: 3 Lead Ecg

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Can 3 lead ECG show much?

Can 3 lead ECG show much?

Yes: While "much" is a relative statement, a 3 lead ECG should be able to help the physician determine your heart rhythm. ...Read more

Dr. Zahid Niazi
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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Male 22. Got a portable 3 lead ECG at home. My P wave can't really be seen but my mums can? How come?

Male 22. Got a portable 3 lead ECG at home. My P wave can't really be seen but my mums can? How come?

Ectopic atrial rhyth: You might have a ectopic atrial rhythm - which means your arial beats instead of originating in the sa node - originates else where. It is benign and nothing to worry about. Get a standard 12 lead ekg to check. ...Read more

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Would a 3-lead ecg, show the t-wave different if potassium was low enough?

Would a 3-lead ecg, show the t-wave different if potassium was low enough?

Hypokalemia ECG: With significant hypokalemia (potassium less than 3) the ECG will change. T-waves will flatten, u-waves will appear , ECG intervals will increase. While a 12-lead ECG will show these best a three lead (holter monitor) or even a single lead ECG may be enough to show the changes. In general you do not want to wait for ECG changes if you suspect low potassium get a chem 7 bloodtest. ...Read more

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On a 3 lead 24h ecg, would it pick up changes from angina like a 12lead?

A 12 lead is better: Depending on the leads and the area affected.It is possible albeit a 12 lead is more definitive. Further testing would rule out ant coronary occlusive disease. ...Read more

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I sometimes have a negative -t in lead 3 on ecg but other times it is positive, it changes every time what can cause this?

I sometimes have a negative -t in lead 3 on ecg but other times it is positive, it changes every time what can cause this?

ECG: T wave changes as you describe are usually due to changes in vector forces from lead placement and respiration. Other variables also can come into play. In general we don't get excited by them. ...Read more

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What does a notched R wave in lead 3 on ECG represent? Is this significant in a 20 year old male with structurally normal heart?

What does a notched R wave in lead 3 on ECG represent? Is this significant in a 20 year old male with structurally normal heart?

Probably Normal: Without viewing your EKG and knowing more about the characteristics of the R-wave (QRS duration, etc) it is difficult to say for certain but most likely represents a nonspecific intraventricular conduction delay. In an otherwise healthy asymptomatic 20 year old without structural heart disease it is an interesting incidental finding of no clinical significance. ...Read more

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My ecg showed a Negative T wave in lead 3 what does this mean? And what could cause this?

ECG: T waves inverted in lead 3 are a nonspecific finding and in and of themselves not a big deal. They must be judged in the context of the whole 12 lead study and clinical information. Ask your Doc about your study and meanwhile don't worry about the test result. ...Read more

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What is the 12. Lead ecg?

What is the 12. Lead ecg?

ECG: It stands for electrocardiogram. It is used to measure the movement of electrical signals in the heart. When working appropriately, this enables your heart to beat and pump blood to the rest of the body. When the heart is damaged or the electrical system is malfunctioning, ECG can pick up changes. ...Read more

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