This is a small battery-operated device that records your heart's electrical activity (ECG) for twenty-four hours or longer.
A holter monitor is a small battery-operated device that continuously records your heart's electrical activity for twenty-four to forty eight hours. It is the size of a small camera and has wires that attach to your skin using round discs (electrodes). It is also known as an ambulatory electrocardiogram (EKG or ECG).
Your healthcare provider may recommend a Holter monitor if he/she suspects that you may have abnormal heart rhythms (e.g., abnormally slow, fast or irregular). These abnormal heart rhythms are also called arrhythmias. Holter monitor results can help determine if:
When the holter monitor is attached, you will be given a diary to fill out. It is very important that you fill out the diary with your activities and any symptoms that you have.
Results from a Holter monitor can help your healthcare provider determine if you need additional tests, medications, or procedures (i.e., pacemaker or cardioversion).
What should I ask my healthcare provider before having a Holter monitor placed?
After the test, you should know the results and what symptoms you should report to your healthcare provider. You should also understand all home care instructions and follow-up plans.
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