An electrocardiogram (ECG) may be a checkup that detects cardiac (cardiac) abnormalities by measuring the electrical activity caused by the guts when it contracts. The device that records the patient’s ECG is named an electrocardiogram.
The electrocardiogram records the electrical activity of the guts muscle and displays this data as a trace on screen or on paper. These data are then interpreted by a practicing physician.
The healthy heart ECG features a distinctive shape. Any change in pulse or damage to the guts muscle can alter the electrical activity of the guts in order that the form of the electrocardiogram changes.
Your doctor may recommend an ECG for people that could also be in danger for heart condition due to a case history of heart condition or because they smoke, are overweight, have diabetes, have high cholesterol or high vital sign .
When Doctors can prescribe an ECG if an individual has symptoms such as:
- chest pain
- shortness of breath
- dizziness
- faint or
- fast or irregular heartbeat (palpitations).
Usually, ECGs are conducted to watch the health of individuals living with heart condition , to assist determine artificial pacemakers, or to watch the guts effects of certain medicines.
The three main sorts of ECG are:
- Resting ECG-
For this type of ECG, you lie . During the test, no movement is permitted because the electrical impulses produced by other muscles can interfere with those generated by your heart.. it always takes 5 to 10 minutes for this sort of ECG.
- Ambulatory ECG
If you’ve got an ambulatory or Holter, use a transportable recording device for a minimum of 24 hours. you’ll move normally while the monitor is connected. this sort of ECG is employed for people whose symptoms are intermittent (initial stop) and should not appear on a resting ECG, and for people that get over a attack to make sure their heart is functioning properly. You record your symptoms during a diary and observe once they occur in order that your own experience are often compared to the ECG.
- Cardiac assay
This test is employed to record your ECG while riding an exercycle or treadmill. It takes between 15 to half-hour to finish this type of ECG.
An electrocardiogram (ECG or EKG) is that the measurement and graphical representation, over time, of the electrical signals related to the guts muscles.
ECG applications range from pulse monitoring to diagnosis of specific heart conditions. the essential principles of ECG measurement are an equivalent for all applications, but the small print and requirements for electrical components vary widely.
How ECG works?
All ECGs capture cardiac signals through electrodes connected externally to specific body locations. Heart signals are generated by the body and have amplitudes of a couple of millivolts. Specific electrode locations allow the electrical activity of the guts to be viewed from different angles, each of which is displayed as a channel within the ECG printout. Each channel represents the differential voltage between two of the electrodes, or the differential voltage between one electrode and therefore the average voltage of several electrodes.
Different electrode combinations allow more channels to be displayed than electrodes.Channels are commonly mentioned as “leads,” so there are 12 separate channels graphically displayed on a 12-lead ECG device.The number of leads, counting on the shape , ranges from 1 to 12. Unfortunately, the wires that run to the electrodes also are occasionally called leads.
Types of ECG Channels
- Single Channel ECG
There is one amplification channel and one recording panel within the single channel ECG module. These devices usually have a multi-position switch, which may be wont to pick the specified lead link. With this sort of instrument, just one lead at a time are often registered
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- Three Channel ECG
On 3 channel machines, the ECG signals selected by the microprocessor are amplified, filtered and sent to a 3 channel multiplexer. Multiplexed analog signals are then given to an analog to digital converter which is then stored and sent to the digital analog converter to reconstruct the analog signals and these signals are demultiplexed and passed to the video monitor or graphics recorder.
- Six Channel ECG
6 Channel ECG System prints in one go 6 waveforms. So compared to three channel ECG Device, its paper width is wide. Six channel ECG System print format would be 6×2. 6 Channel ECG The length of the reporting system is relatively smaller because the width of the page is wide.
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- 12 channel ECG
A 12-lead ECG is an efficient clinical decision-making method and may provide a wealth of data like diagnosis of developing MI; detect life-threatening arrhythmias; long-term effects of persistent hypertension; or acute pulmonary embolus symptoms.Unlike cardiac monitoring, the 12 lead ECG displays the heart’s 3-dimensional electrical activity captured from twelve separate leads or points of view. It gives the whole photo.So it is also called an ECG system multichannel. Most of the 12 channel ECG machine is understood to print on A4 size paper ECG sheet. and therefore the report is broad and low. It makes it easy for doctors to look at the ECG waveform and compare it.
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Use o ECG Channel machine
ECG electrodes are positioned in fixed locations on particular areas of the body in order that various images of the electrical activity of the guts are often reliably captured and repeated across records.
- Check your pulse
- See if you’ve got a weak blood flow to the guts muscle (this is named ischemia)
- Diagnose a attack
- Check for abnormal things like thickened cardiac muscle
- Detect if there are significant abnormalities within the electrolyte like high or low calcium potassium.
- If clogged or narrowed arteries in your heart (coronary artery disease) are causing pain or attack
- Structural Problems together with your Heart’s Chambers
- A previous attack
- To what extent are ongoing heart condition treatments, like a pacemaker, working
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