Electrocardiogram is an important inspection tool in the medical field, which can record the electrical activity of the human heart.

This article will discuss the role of ECG charts and how to use them.

ECG paper is a special paper with fine grid lines that is used to record ECG signals. The electrocardiograph converts the electrical signals generated by the heart into waveform diagrams on paper, and doctors can evaluate the patient's heart function and heart disease based on these diagrams.

The role of ECG drawings in clinical practice is very important. First, it can provide quantitative information on the electrical activity of the heart. By observing the waveforms on the electrocardiogram, doctors can understand the rhythm of the heart, heart rate, myocardial ischemia, myocardial injury and other conditions. This is of great significance for diagnosing heart disease, judging the severity of the disease, and formulating treatment plans.

Second, ECG drawings can also monitor the efficacy of cardiac medications. After administering certain heart drugs to patients, doctors can evaluate the efficacy of the drugs by comparing the changes in the electrocardiogram. For example, antiarrhythmic drugs can be used to determine whether they are working by observing changes in heart rhythm on an electrocardiogram.

When using ECG drawings, doctors need to master the correct method of use. First, prepare the appropriate electrocardiograph and lead cables. The lead cables are attached to specific locations on the patient's body, usually the chest and extremities. Then, turn on the EKG machine to make sure it's working properly. Next, put the ECG paper into the paper slot of the electrocardiograph, and adjust the speed and gain of the paper so that the recorded waveforms are clearly visible.

While the ECG is being recorded, the doctor should explain the procedure to the patient and make sure the patient is quiet and relaxed. During the recording, the physician takes care to avoid factors that interfere with the signal, such as moving lead cables or the patient's limbs. After the recording is completed, a series of waveforms will appear on the ECG chart, including P waves, QRS complexes, and T waves. Doctors can analyze and diagnose according to the shape and time interval of these waveforms.

In short, as an important tool in ECG examination, ECG drawings can record the electrical activity of the human heart and provide an important basis for doctors to judge heart disease. When using ECG drawings, doctors need to master the correct method of operation and pay attention to the quality and accuracy of the records. By accurately interpreting ECG drawings, doctors can help patients detect and deal with heart diseases in a timely manner, thereby ensuring the health and safety of patients.