What Tests are Used to Diagnose Arrhythmias?
Arrhythmias are irregular heartbeats that can lead to significant health issues. Various diagnostic tests help healthcare providers determine the specific type of arrhythmia and its underlying causes.
1. Electrocardiogram (ECG or EKG)
An ECG is the most common and essential test used to diagnose arrhythmias. It measures the electrical activity of the heart, producing a graphical representation that helps identify abnormal heart rhythms.
2. Holter Monitor
This portable device continuously monitors heart activity for 24 to 48 hours. Patients wear this monitor to capture transient arrhythmias that may not appear during a standard ECG.
3. Event Monitor
Similar to a Holter monitor, an event monitor is used for longer periods, typically up to 30 days. Patients activate the device when they experience symptoms, allowing for targeted data collection.
4. Exercise Stress Test
This test evaluates heart rhythm under physical stress, usually conducted on a treadmill or stationary bike. It helps identify exercise-induced arrhythmias.
5. Electrophysiological Study (EPS)
An EPS is an invasive procedure where catheters are threaded through blood vessels to the heart to measure electrical signals directly. This test can pinpoint the origin of arrhythmias and assess their severity.
6. Echocardiogram
While primarily used to visualize heart structure and function, an echocardiogram can reveal conditions like heart valve abnormalities that contribute to arrhythmias.
Consulting with a healthcare provider is essential for appropriate testing and diagnosis.