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Doctor insights on: 12 Lead Ecg Made Easy

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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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Dr. Mark Pack
3 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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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

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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?

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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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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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?

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

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I have a heart check pen that reads single lead ecg. Keeps saying wide QRS/IVCD. What's that mean? A 12 lead I had a month ago didn't say that.

I have a heart check pen that reads single lead ecg. Keeps saying wide QRS/IVCD. What's that mean? A 12 lead I had a month ago didn't say that.

False reading?: Since your EKG recently was normal it's quite possible your "heart check pen" is giving you a false reading. IVCD refers to intra-ventricular conduction delay. The AV node initiates a wave of depolarization that travels down the bundle of HIS which, in turn, divides into the left and right bundle. A partial or complete block of one of these branches causes a delay in contraction and a wide QRS. ...Read more

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Why would the 12-lead ECG measurement be better than the polar heart rate monitor?

It sees more: The 12 leads look at the heart from many different viewpoints, not just one. One of the 12 "standard" leads (called lead 1) is exactly what your polar is measuring. That said, there's a lot going on all over the heart that a single lead can miss. Try looking out a window through a toilet paper tube to illustrate. See how much could be going on up and down the street without you catching it? ...Read more

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If you have normal 2decho jan, 12 lead ecg, chest xray, how long would pleurisy or pericarditis take place or will it happen even normal test?

If you have normal 2decho jan, 12 lead ecg, chest xray, how long would pleurisy or pericarditis take place or will it happen even normal test?

Pleurisy and...: Pericarditis don't always show up on tests you had. They are appropriate to start the eval. Mri may help if pericarditis is a concern. Relief of central chest pain while leaning forward suggests pericardial source. Pain with deep inspiration, especially in either chest region, suggests pleurisy. Pleurisy tends to resolve over a few weeks. Pericarditis is much less predictable. Other sources poss? ...Read more

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What other work up should I do to really ruled out heart disease I've done 2decho doppler, 12 lead ecg, ecg, threadmill stress test all came back normal?

What other work up should I do to really ruled out heart disease I've done 2decho doppler, 12 lead ecg, ecg, threadmill stress test all came back normal?

Tests: You've had more than enough testing. If you're concerned about your heart disease future. Use a mediterranean or vegetarian diet and get regular daily aerobic and some weight exercise. Keep your high BP controlled to normal and be sure your blood sugar and lipids are controlled. You're fine now doing those things will help keep it that way. ...Read more

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What is an electrocardiogram (ecg) used for?

Check your heart: An ekg (ECG) collects information about how the electrical impulse that maintains your heart rate is transmitted through your heart. It not only shows the rate of your hearbeat and its regularity or lack of, but can also give information about the size and strength of the chambers of your heart and sometimes about whether the heart muscle has been damaged, is receiving enough blood, etc. ...Read more

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How often must people get an electrocardiogram (ecg)?

ECG: Once you have a baseline ecg, you really only need others for changes in status. If nothing new appears to be going on to evaluate, you don't really need another one. ...Read more

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What are the risks of having an exercise electrocardiogram (ecg)?

Very safe: If exercise is going to make you seriously sick, it'll happen where they'll probably be able to resuscitate you -- disease discovered would have caught up with you soon enough without anyone on-scene to help. But mostly -- congratulations on considering a fitness screen -- my hope is that it'll inspire you to exercise to your maximum as often as you can. ...Read more