Holter

A test with a Holter monitor allows the doctor to obtain a detailed record of the heart rate over a prolonged period (24 to 48 hours during normal activity), checking the diary with the Holter record helps the doctor diagnose heart rhythm problems . It is usually done after a traditional study to evaluate the heart rate (electrocardiogram), especially if the doctor could not get enough information about the state of the heart through the electrocardiogram.