24-Hour Ambulatory Electrocardiogram (Holter Monitor Study)

What Is Recorded During the Test?

The Holter monitor attaches to your chest with electrodes and records your heart’s electrical activity (ECG) continuously. You’ll keep your normal daily activities, but note any symptoms like dizziness, chest pain, or palpitations, as these may correlate with abnormal readings. The device is removed after 24 hours, and the recorded data is analyzed by a healthcare provider to identify any irregular patterns.

Preparing for the Test

No special preparation is needed. Wear comfortable clothing with easy access to your chest. Avoid removing the monitor unless instructed, and keep it dry. If you have a pacemaker or other implanted device, inform your doctor beforehand.

During the Test

The monitor is attached to your chest with sticky electrodes. You’ll carry it in a pouch around your waist or neck. It’s lightweight and doesn’t interfere with daily tasks. If you experience discomfort or the electrodes come loose, contact your doctor immediately.

After the Test

Remove the monitor after 24 hours and return it to your doctor. You may resume normal activities, but avoid swimming or showering with the device still attached. Your doctor will review the recordings to check for any abnormal heart rhythms or patterns.