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Doctor insights on: 12 Lead Ecg Side Effects

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Why is it called 12 lead ecg if it only uses 10? Pls explain

Why is it called 12 lead ecg if it only uses 10? Pls explain

The EKG is routinely: performed with 6 chest wires (V1-V6) (six signals or leads) and the four arm wires. 10 wires. The signals from the arm and leg wires are electronically combined to provide a triangular pattern of three leads (signals) I,II,III. And then also electronically combined to produce what is called augmented leads (signals). aVR, aVL, and aVF. 6 more signals (leads). Thus 10 wires and twelve leads. ...Read more

Dr. Stephen Scholand
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 is the indication for having a flat t wave in 12 lead ecg?

T Wave flattening : In the absence of clinical history or symptoms, t wave abnormalities such as flattened t waves are nonspecific. They may be seen in healthy individuals, leading to mistaken diagnosis of heart disease. Pathological causes are many & include myocardial ischemia, electrolyte abnormality, stroke, anticancer medications, and even with fever and after eating. Your dr, will tell you more. ...Read more

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Hi. I'm a Paramedic and did a 12-lead ECG on myself at work and found an rsr' in V1which I didn't find in an ECG I did a few years ago. Any comments?

Hi. I'm a Paramedic and did a 12-lead ECG on myself at work and found an rsr' in V1which I didn't find in an ECG I did a few years ago. Any comments?

ECG: New onset rsr' in the absence of clinical symptoms doesn't carry a lot of meaning. There are a multitude of possibilities. If you are nervous see your doc and discuss to see if evaluation is indicated. ...Read more

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Hi. I'm a Paramedic and when I did a 12-lead ECG on myself at work I found an rsr' complex in V1(rsr' is 0.08s wide). It wasn't there when I did an ECG a couple of years ago. What should I do?

Hi. I'm a Paramedic and when I did a 12-lead ECG on myself at work I found an rsr' complex in V1(rsr' is 0.08s wide). It wasn't there when I did an ECG a couple of years ago. What should I do?

If you have no: cardiac symtoms (dyspnea, chest pain, palpitations, exertional limitation) then do nothing. Perhaps another EKG in a few years for interest. I suspect your conduction system is aging or more likely your lead position or body position was different now than the last time. This could be an early sign of right heart disease so an echo could be useful, nothing would be done until you have symptoms. ...Read more

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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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I had 12 lead ECG, my results is LVH by voltage of 5mm /mV. Does this increase to 5mm/mV severe or not? Help. Iam 23, taking amlodopine and telmisarta

I had 12 lead ECG, my results is LVH by voltage of 5mm /mV. Does this increase to 5mm/mV severe or not? Help. Iam 23, taking amlodopine and telmisarta

Non specific: LVH is designated as "by voltage criteria" because that is a weak criterion for diagnosing LVH. (there are at least 25 criteria). Many people your age (23) have high voltage which is perfectly normal. An echo would be more specific. Meanwhile, keep that BP under good control, LVH or not! ...Read more

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How can I differentiate SVT and psvt, when 12 lead ECG showing as like as svt?

How can I differentiate SVT and psvt, when 12 lead ECG showing as like as svt?

No difference: The ekg would look the same. Most people tend to use the terms psvt and svt interchangeably. ...Read more

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I was offered to purchase a personal full 12 lead ECG device that works with my iphone and send ECG by email to a doc. Would your recommend it?

More information : Most citizens have no need for a home ECG machine that transmits to a doc. If your clinical condition is such that you ECG is likely or expected to change, and early recognition is important, then this may be a good investment for you. ...Read more

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I have chest pain more on swallowing, 12 lead ecg. Small Q waves in inferior leads plus v5 and 6, what could be wrong?

I have chest pain more on swallowing, 12 lead ecg. Small Q waves in inferior leads  plus v5 and 6, what could be wrong?

Chest pain: It appears you are already under care of a physician having had an ekg done. If you have q waves, it may indicate old myocardial infarction. But we have to take into account your symptoms, your risk factors before deciding on further testing like a nuclear stress test, or a cardiac cath. Your primary care physician or cardiologist would be able to guide you ...Read more

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My 17year old son just had a 12 lead ECG done it showed t wave inversions in ii, iii, avf & v4. Could the barium from an ugi series cause this?

Nonspecific: T wave inversion may be part of a normal ekg and has to interpreted by a doctor. Inverted t wave is normal in iii and sometimes other leads without meaning anything alarming. Have the doctor let you know what they think. The ekg interpretation can change with age as well so you need expertise to read them at this age. ...Read more