
An electrocardiogram, or ECG, records the electrical activity of your pet's heart. It shows how fast the heart is beating and whether the rhythm is regular, which helps your vet find and understand heart rhythm problems.
An ECG is quick, painless and non-invasive. It's often used alongside other tests, such as X-rays, bloodwork or an echocardiogram, to build a complete picture of your pet's heart health.
When Your Vet May Recommend an ECG
Your vet may suggest an ECG if they hear an irregular heartbeat or a very fast or slow heart rate during an exam. It can also be helpful if your pet shows signs such as:
- Fainting, collapse or sudden weakness
- Tiring easily or not wanting to exercise
- Coughing or fast breathing at rest
- Pale gums
An ECG may also be used before anesthesia or to monitor pets with known heart disease. Collapse or trouble breathing is an emergency, so come in right away or contact the nearest emergency hospital.
What to Expect During Your Pet's ECG
Your pet usually lies on their side on a padded table while small sensors are gently attached to the skin, often on the legs. The sensors pick up the heart's electrical signals for a few minutes while your pet rests quietly. Most pets don't need sedation.
Your vet reviews the tracing to check the heart rate and rhythm. If there's a problem, they'll explain what the results mean and talk with you about treatment and any further tests your pet may need.
Questions about Electrocardiogram (ECG)?
Call us or book an appointment online, and our team will help you decide on the next step for your pet.
Electrocardiogram (ECG): Frequently Asked Questions
Is an ECG painful for my pet?
Does my pet need to be sedated for an ECG?
What's the difference between an ECG and an echocardiogram?
Can heart rhythm problems in pets be treated?
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