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Also question is, how do you test for heart arrhythmia?

Tests used to diagnose an arrhythmia or determine its cause include:

1. Electrocardiogram.
2. Holter monitor.
3. Event monitor.
4. Stress test.
5. Echocardiogram.
6. Cardiac catheterization.
7. Electrophysiology study (EPS)
8. Head-up tilt table test.

Subsequently, question is, what causes arrhythmia? Arrhythmias can be caused by:

• Coronary artery disease.
• High blood pressure.
• Changes in the heart muscle (cardiomyopathy)
• Valve disorders.
• Electrolyte imbalances in the blood, such as sodium or potassium.
• Injury from a heart attack.
• The healing process after heart surgery.
• Other medical conditions.

Beside this, is there an app to detect an irregular heartbeat?

A recent study showed that FibriCheck® could accurately detect irregular heart rhythms. Here's how it works: You hold your left index finger over the camera lens of your phone. The app uses the phone's camera and flash to detect color variations in your bloodstream.

Does an ECG pick up arrhythmia?

Diagnosing arrhythmias The most effective way to diagnose an arrhythmia is with an electrical recording of your heart rhythm called an electrocardiogram (ECG). If your symptoms seem to be triggered by exercise, an exercise ECG may be needed to record your heart rhythm while you are using a treadmill or exercise bike.