Electrocardiographs are used for the detection of the electrical signals
that are associated with the cardiac activities and for the production
of ECG or Electrocardiograms. ECG is basically a graphic record
of all the voltage versus the time. ECG or EKG is used for the
detection, diagnosis and assisting in the treatment of some types of the
heart diseases and also for the arrhythmias for the determination of
the patient’s response to the drug therapy and for revealing all the
trends and the changes in the functions of the heart. Different kind of
ECG channels has been in use by different physicians, but most of them
have been using the single channel ECG for getting the accurate results
of the hearts. The single channel ECG have been recording the heart
signals from only one lead that makes it really very easy for the
doctors to detect what kind of heart problem the patient is actually
suffering from.
Some of these single channel ECG can also perform the automatic
functioning, measurement and interpretation of the ECG as one of the
most selectable and optional feature. This has been a great help for all
the cardiologists working with the single channel ECG. The single
channel ECG consists of the ECG units, cables and the electrodes. These single channel ECG have got the following features usually:
• A 12 lead system including three different types of leads that are bipolar, unipolar and precordial.
• The 12 leads presenting different kind of perspectives of the electrical activities of the heart.
• Produces ECG waveforms in which all the P waves, T waves and QRS complex vary in the amplitude and polarity.
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