The 24-hour monitoring of the heart is called a 24-hour ambulatory electrocardiogram, and the price varies from hospital to hospital depending on the level of the hospital and the variability of the machine. This test can be done on an outpatient basis and is not too expensive, with an ECG costing between$200 and$300. An ambulatory ECG can dynamically monitor the changes in a patient’s heart over a 24-hour period. It can visually record the abnormal waveform of the heart, reflecting the presence of heart lesions and arrhythmias, which is important for the diagnosis and treatment of heart disease. Therefore, if you really have heart discomfort and your doctor recommends an ECG, you must actively cooperate and improve the examination as soon as possible to clarify the pathology and actively give treatment and intervention.