The image is a representation of an electrocardiogram, a device used to measure the electrical activity of the heart. The electrocardiogram consists of four leads that are placed on various areas of the body. The device is connected to the chest and heart of the person being tested, and the leads display the electrical activity of the heart. The leads are attached to the chest wall using sticky tape, and their wires connect to the electrocardiograph machine. The image depicts a close-up view of a man's chest with electrodes attached to the skin, and the electrocardiograph machine displaying the electrical activity of the heart. The heart rate is measured in beats per minute, and it is used to diagnose various cardiac conditions such as arrhythmias, tachycardia, and bradycardia. The electrocardiogram is an important tool for medical professionals to diagnose and treat cardiac disorders, and it can also be used to monitor the effectiveness of medications or therapies for heart conditions.

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