ECG: removal technique. Basics of electrocardiography
What is ECG?The technique of taking heart performance indicators is a special technique for recording currents that occur after a certain time period. It is recommended to undergo electrocardiography yearly as a test regardless of age. ECG is an additional way to determine the truthfulness of research results. 
What is an ECG?
The heart is a unique organ, capable of creating currents on its own, from which it is reduced. If the heart is healthy, it is excited in the sinatrial node and passes the currents to the atrioventricular node through bundles. Through these bundles, excitation enters the ventricles, causing their contraction. The heart is autonomous, has automaticity, conduction and contractility. ECG - the technique of removal, thanks to which it is possible to trace the debugging of all these processes.
In order to correctly conduct it, you must follow a certain technique and perform everything in stages. The electrocardiogram is a method of studying the work of the heart, which is based on recording the electric fields produced in the process. Getting the correct result depends on the expert's experience and compliance with certain rules. The decoding of the electrocardiogram, that is, the resulting graphic data, should be performed by a cardiologist.
What is it for?
Why conduct an ECG?The technique of removal is a procedure for non-invasive examination. With its help you can track the work of the main organ in the human body. Electrocardiography allows you to assess the condition of the heart and identify its disease. An ECG is appointed by a therapist or cardiologist if the patient complains of pain in the heart, breasts, discomfort in the left hypochondrium, shortness of breath, rhythm disturbance, dizziness, fainting, angina. The method is not considered universal, since it only indirectly determines the activity of the organ.
Electrocardiography assesses the cardiac conduction system, its rhythm, organ size, blood supply, localization of the affected part of the muscle. Due to the fact that the ECG provides different data on the state of the heart, it is very popular.
The ECG device monitors all the pulses that the heart creates and writes them down. They are measured, converted into a schedule, fixed on a film. This technique was included in mandatory studies during preventive examinations and in the presence of any pathologies. The cardiogram is removed before any kind of surgical intervention, the use of medications that affect the work of the heart, and before and after drug therapy. 
Features of
The ECG apparatus, while observing the removal technique, is able to detect the presence of the following diseases:
- ischemic heart disease;
- myocardial infarction;
- rhythm and conduction disorders;
- hypertrophy.
Electrocardiography can also detect vascular disease and impaired lung function.
Pros and Cons of
What are the advantages and disadvantages of ECG?The removal technique is absolutely harmless and safe for humans. Contraindications for it does not exist. They take an electrocardiogram for both children and adults. The procedure is simple, fast, efficient and inexpensive. The main drawback is the inaccuracy of the testimony. It should be performed only by a professional with observance of certain requirements and rules, as it is easy to get unreliable data. It is best to do an ECG in the morning on an empty stomach. 
Preparation of
How to conduct an ECG?The electrodes must be positioned correctly, otherwise the results will be unreliable. Even before the procedure begins, the patient must be prepared. It takes only ten minutes to remove the performance of the heart. The room should have a comfortable temperature. A patient's calm state guarantees the accuracy of the indicators. Before the procedure should be sure to rest for ten to fifteen minutes to normalize the heart.
The registration of electrocardiography is unified. Six suckers equipped with electrodes for ECG are placed on the patient's chest on the front. They are like plates and are connected to a block recording all incoming signals. The specificity is that they are recorded graphically on a moving tape or monitor screen.
Patient Position
The electrodes are placed in the supine position on the back. To conduct the correct procedure, it is necessary to bare the torso, ankles and wrists. During registration it is important to breathe shallowly. Doctors recommend performing an electrocardiogram on an empty stomach. Before diagnosis, you can not drink alcohol, strong tea, coffee, eat heavy food, and take sedatives, soothing. The results are affected by the emotional state of the patient, physical fatigue, so it is better to conduct the ECG in the morning.
Technique for removing
Where is the ECG performed? At home or in the clinic? The apparatus of electrocardiography is equipped with ambulances, hospitals. It is allowed to perform cardiac output measurement at home by a doctor if the patient can not come to the medical institution on his own due to his state of health. The main thing during the procedure is to adhere to the algorithm of applying electrodes. Color sensors are placed on the ankles and wrists. The plates are set starting from the right hand, moving clockwise. In order to improve the signal and conductivity, wet wipes are placed under the plates, and the skin is pre-degreased.
Electrodes are lubricated with a special gel and are located in a special way. They are placed a short distance apart, from the center of the thorax to the left armpit. ECG at home should be performed by a specialist. The doctor also evaluates the result. On the electrocardiogram after removal, a complex of teeth arranged in a certain sequence is graphically displayed. They are different in length, height, direction. The device records four heart complexes in each lead. Normally, the teeth of each cycle should not differ from each other by more than ten percent. 
Stages of
Where can I make an ECG in Moscow? Electrocardiography is a procedure that is available to absolutely all patients. You can check the heart and blood vessels using this method in any clinic, medical facility that provides free and paid services. The ECG examination consists of several stages.
- Preparation. The patient should not have jewelry, metal objects during the procedure. If the male patient has a scalp on his chest, it must be removed before the ECG, otherwise it will be impossible to attach the electrodes.
- Installation of electrodes. Each of them is placed on a specific point on the body. For attachment use clips and suckers.
- Connection to the machine. It is important to connect the electrodes strictly in sequence. Red wire - to the right hand, yellow - to the left, green - to the left leg, black - to the right leg, white - to the chest.
- Fixation of leads. All wiring should be attached according to the scheme.
The decoding of the results is performed by a cardiologist or therapist. In doing so, he takes into account the heart rate, the regularity of the rhythm, the presence of teeth, their height, size, polarity, the presence of other elements on the cardiogram. If any abnormalities are detected, additional research and therapeutic treatment are prescribed.