The cost of cardiac 24-hour ambulatory monitoring is around $150 to $200, depending on the region. Cardiac 24-hour ambulatory monitoring, i.e. ambulatory electrocardiogram, monitors the electrical activity of the heart of the person being tested under daily conditions to determine whether he/she is suffering from arrhythmia, myocardial ischemia, myocarditis and other diseases. The fee is usually around $200 for a tertiary care hospital and may be reduced for a secondary care hospital. It is important to note that when performing an ECG, it is necessary to avoid interference from power and other magnetic fields, such as avoiding CT and MRI. After the ECG examination, you need to find a doctor to analyze the results in time to avoid delaying your condition.