Abnormal heart beats, an arrhythmia, can cause your pet to not feel well or even faint. Many arrhythmias can be treated with medications or a pacemaker implant. If an abnormal heart rhythm is suspected, your pet may require an ECG.
An ECG measures the electrical activity of your pet's heart. It is necessary to diagnose and classify the type of arrhythmia present and is used by the veterinary cardiologist to make treatment recommendations. It is a simple test where by wires are clipped to your pets skin to record the electrical activity of the heart.