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Services / Cardiology / HOLTER

HOLTER Monitoring


A Holter monitor is a small portable, battery-powered medical device that measures the heart’s activity such as rate and rhythm. This testing is ordered when your doctor needs more information about the functioning of your heart than a routine electrocardiogram (ECG) can give.

holter monitor test - City XRay

Holter monitoring (24h) refers to a 24-hour, continuous test to record your heart rate and rhythm. This device has electrodes and electrical leads exactly like a regular electrocardiogram. A patient wears the Holter monitor for 12 to 48 hours as they go about their normal daily routines.The Holter monitor let your doctor see how your heart functions on a long-term basis. The recordings made by the monitor help your doctor determine if your heart is getting enough oxygen or if the electrical impulses in the heart are delayed.

Frequently Asked Questions

Some reasons for your healthcare provider to request a Holter monitor recording or event monitor recording include:
  • To evaluate chest pain that can't be reproduced with exercise testing.
  • To evaluate other signs and symptoms that may be heart-related, such as tiredness, shortness of breath, dizziness, or fainting.
A Holter monitor captures and displays the heart's performance and allows a doctor to determine if your heart is working properly or if you might have a heart condition. Most often those detected by these tests include irregularities heartbeat and abnormal heart rhythm.
Some people may have conditions such as heart block that can lead to a slow heart rate, dizziness and passing out. Some people may have uncontrolled fast heart rates from atrial fibrillation or other forms of arrhythmia. Holter monitors can be used to diagnose and characterize these disorders.
Since an EKG only lasts for a few minutes, it may not detect any heart abnormalities if they are not present at that time. The Holter monitor is worn for 24 hours and records the heart's activity throughout that time.
Do not swim, take a bath, or shower while wearing the monitor. Try to sleep on your back, with the recorder at your side. This will keep the patches from being pulled off. Avoid electric blankets, magnets, metal detectors, and high voltage areas such as power lines.
It takes about 2 weeks for a technician to scan all of the Holter monitor information into a computer and have the heart doctor (cardiologist) interpret the information. You will be notified of the results, even if they are normal.
Do not eat or drink anything for 4-6 hours before your test. Do not eat or drink any caffeinated products (like cola, Mountain Dew, tea, coffee or chocolate) for 12 hours before the test. Report all of the medications you take. Ask if you should stop taking any of your medications before the test.
What You Can't Do. Avoid swimming, bathing, and strenuous exercise that may cause you to sweat heavily. Instead of showering, you can use wet wipes or soapy washcloths to clean your body. However, be careful not to get the monitor, leads, or electrodes wet while using wipes or washcloths.
A holter monitor can be used to:

Diagnose abnormalities of your heart, such as heart chamber enlargement and abnormal electrical conduction.
A Holter blood pressure device is worn by the patient for twenty-four hours. The device records the changes in blood pressure over a 24-hour period.
Holter monitors record continuously, usually for about 24 to 48 hours.
Don't bathe, shower or swim while wearing the monitor. Stay away from high-voltage areas, metal detectors or large magnets. The technician will show you how to keep a diary of your activities and symptoms during the test. It's important to keep an accurate diary.
The Holter monitor is a recording device. The monitor is battery-powered and can be placed in a pocket or pouch. The monitor has 5 to 7 wires called leads. The leads attach to metal disks called electrodes, which are placed on your chest.


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