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Doctor insights on: Electrocardiogram Lead Placement

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Lead placement for a five-lead ECG system ?

Lead placement for a five-lead ECG system ?

Usual: White to the right arm, black to the left arm, red to the left leg, green to the right leg, usually the v lead is brown which goes to the precordial placements. ...Read more

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Dr. Debra Rosenblatt
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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Can incorrect lead placement lead to an inverted t-wave on ekg?

Can incorrect lead placement lead to an inverted t-wave on ekg?

Yes: Yes, absolutely. Avr usually has inverted t-waves normally. If you invert left and right arm electrodes, avr becomes avl so now avl has inverted t waves (where as typically it does not). ...Read more

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Does electrode placement on EKG affect outcome results, ?

Does electrode placement on EKG affect outcome results, ?

Ecg : The ECG records the vector direction of the signals in the heart. As such the placement of the leads is crucial to the interpretation of the ECG patterns recorded. ...Read more

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Ecg: flat t wave. Echo: ef 60%. Basis on this diagnosis is ischemia. Being asked to undergo stent placement? Should go for it or not?

Ecg: flat t wave. Echo: ef 60%. Basis on this diagnosis is ischemia. Being asked to undergo stent placement? Should go for it or not?

Need more info...: Would need to know your symptoms and the results of a stress test to clarify better. You are right to ask questions. Except in extreme emergencies, one can always ask for a second opinion ...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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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

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What is a lateral lead mean on an ecg?

See answer: An ekg will have 6 leads on your chest area (called v1 through v6) as well as 1 for each arm and leg. The last 2 leads on the chest (v5-v-6) are called the lateral leads, as well as lead i on the 12 lead ekg sheet. ...Read more

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What can cause the p-waves to be missing on a 4 lead ecg?

What can cause the p-waves to be missing on a 4 lead ecg?

P waves: If p waves are not seen on the surface ecg, either they are not present or the vector direction of the forces doesn't produce an adequate size p wave to see in the leads available. ...Read more

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My ECG showed repolirisation abnormalities in lead v5 and v6 the t wave was more flat or something is this bad? I'm 23.

Non-specific: What you're describing is rather non-specific, that is, you'd have to combine the EKG findings with a thorough history and physical examination by your primary physician. They may want to, then, refer you to a cardiologist or cardiac electrophysiologist to see if the findings are significant. Call 911 if you pass out, have chest pain, severe dizziness, or sudden onset shortness of breath. ...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?

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