An ECG test is a simple and effective way to check how your heart is beating. ECG stands for electrocardiogram, and the test records the electrical activity of the heart. It is commonly used to investigate symptoms such as palpitations, chest discomfort, dizziness, or breathlessness, and it also plays an important role in routine heart checks and ongoing monitoring.

Our clinic regularly carry out ECG tests for patients across Kent and East Sussex. Many people arrive unsure what the test involves or whether they really need one. This guide explains when an ECG is recommended, what it can show, and what to expect on the day.

What Is an ECG Test?

An ECG measures the electrical signals that control your heartbeat. Each time your heart beats, an electrical impulse travels through the heart muscle, causing it to contract and pump blood. The ECG records these signals and displays them as a trace, allowing cardiologists to see whether the rhythm and timing are normal. The test itself is quick, painless, and non invasive. Small sticky electrodes are placed on the chest, arms, and legs, and the recording usually takes only a few minutes.

Why Might You Need an ECG Test?

An ECG test is often one of the first investigations used when someone has symptoms that may be related to the heart. It can also be used as part of a general heart health assessment, even if you feel well.

You may be referred for an ECG if you experience symptoms such as palpitations, irregular heartbeats, chest pain, shortness of breath, dizziness, or fainting. ECGs are also commonly used to monitor known heart conditions, check the effects of medication, or assess the heart before certain procedures. Some people choose to have an ECG simply for reassurance, particularly if they have risk factors such as high blood pressure, high cholesterol, diabetes, or a family history of heart disease.

What Can an ECG Detect?

An ECG provides valuable information about how the heart is functioning. It can help identify abnormal heart rhythms, such as atrial fibrillation or other arrhythmias. It may also show signs of previous heart damage, strain on the heart, or problems with how electrical signals travel through the heart.

While an ECG is very useful, it does not show everything. Some heart conditions only appear during activity or occur intermittently. In these cases, further tests such as heart rhythm monitoring, an echocardiogram, or a stress test may be recommended. For more detail on what an ECG can show, the British Heart Foundation offers a clear explanation.

Types of ECG Tests

There are different types of ECG tests, depending on your symptoms and what your cardiologist is looking for.

A resting ECG is the most common and records your heart rhythm while you are lying down and relaxed.

A 24 hour or longer ECG monitor may be used if symptoms come and go, allowing the heart rhythm to be recorded during normal daily activities. A

An exercise ECG records the heart while you walk on a treadmill, helping assess how the heart responds to physical exertion.

What Happens During an ECG Test?

When you attend for an ECG test, you will be asked to lie down on an examination couch. Electrodes are placed on your skin, usually on the chest and limbs. The test itself is over very quickly and causes no discomfort. You can return to normal activities immediately afterwards. If you are having longer term monitoring, you will be shown how to wear the device and what to do if symptoms occur while it is in place.

How to Prepare for an ECG

There is usually no special preparation needed for an ECG. It helps to wear loose clothing so electrodes can be placed easily. Avoid applying creams or lotions to your chest on the day of the test, as these can interfere with the electrodes sticking properly. Try to arrive relaxed, as anxiety or recent exertion can temporarily affect heart rate.

What Happens After the Test?

Once the ECG has been recorded, the results are reviewed by a cardiologist. Many people are reassured to learn that their ECG is normal. If an abnormality is found, further tests may be arranged to explore the cause in more detail.

At West Kent Cardiology Partnership, we make sure results are explained clearly and that you understand what they mean for your health. If needed, a personalised plan for further investigation or treatment will be discussed.

Why Early ECG Testing Matters

Heart rhythm problems can sometimes be present without obvious symptoms. An ECG can pick up early changes that may benefit from monitoring or treatment before complications develop.

Early testing is particularly important for people with existing heart conditions, those taking certain medications, or anyone with a strong family history of heart disease.

Conclusion

An ECG test in Kent is a quick and reliable way to assess your heart rhythm and identify potential problems early. Whether you are experiencing symptoms or simply want reassurance about your heart health, an ECG can provide valuable information and peace of mind. We offer prompt access to ECG testing alongside a full range of cardiac assessments for patients across Kent and East Sussex. If you are concerned about your heart or would like to book an ECG test, you can contact us here to arrange an appointment.