If your pet has a new heart murmur, an irregular heartbeat, episodes of weakness/collapse, or needs extra screening prior to anesthesia, an electrocardiogram (ECG or EKG) can provide important information about heart rhythm and electrical conduction.
At Village Veterinary Clinic, we offer electrocardiography for dogs and cats to help evaluate cardiac concerns and guide next-step recommendations. An ECG is a quick, non-invasive test that records the electrical activity of the heart—similar to the test used in human medicine.
Have questions about whether an ECG is right for your pet? Please contact us, request an appointment, or call (713) 468-7955. For helpful visit prep, see our Forms page.
What Is an ECG (Electrocardiogram) for Pets?
An ECG (also called an EKG) measures the electrical impulses that cause your pet’s heart to beat. Those impulses follow predictable pathways through the heart. By recording them, an ECG helps your veterinarian evaluate heart rate, heart rhythm, and certain patterns that may suggest abnormal conduction or other cardiac concerns.
While an ECG is excellent for identifying many rhythm-related issues (arrhythmias), it’s important to know that it does not “show a picture” of the heart. If we need to evaluate the heart’s structure (chambers, valves, and pumping function), we may recommend additional diagnostics such as digital radiology (X-rays) and/or an ultrasound (which may include an echocardiogram, depending on your pet’s needs).
As part of a complete plan, your pet may also benefit from routine wellness exams and ongoing preventive care through our veterinary services.
When Might My Pet Need an ECG?
Your veterinarian may recommend an ECG as part of a heart-health workup, or as a precaution before certain procedures (including some surgery and soft tissue or orthopedic surgery). Common reasons include:
- Irregular heartbeat heard during a physical exam
- Heart murmur or abnormal pulses
- Weakness, collapse, or fainting-like episodes
- Exercise intolerance (tires easily, slows down on walks)
- Coughing or breathing concerns (when appropriate as part of a larger workup)
- Pre-anesthetic screening in patients where added cardiac information is recommended
- Monitoring when cardiac medications or other conditions may impact heart rhythm
If you’ve noticed anything unusual at home—or if you were told your pet has a murmur or rhythm change—our team can help you understand what that means and what diagnostic steps may be most helpful. Depending on age and health status, we may also discuss related care like senior care, puppy and kitten care, and supportive options such as pain management.
If your pet seems unstable (collapse, trouble breathing), please review our urgent care guidance or visit our emergency page for next steps.
What to Expect During Your Pet’s ECG Appointment
An ECG is generally a low-stress, outpatient test. Most pets do well with gentle handling and a calm environment.
- No special prep is usually needed: In many cases, pets do not need fasting or special preparation for an ECG. If your pet is scheduled for anesthesia the same day, we’ll give you the correct fasting instructions for that procedure.
- Electrodes are placed on the skin: Small clips/leads are placed at specific points to record the electrical activity of the heart. Alcohol or conductive gel may be used to improve contact.
- Your pet needs to hold still briefly: The recording may take less than a minute, or a few minutes, depending on what we’re evaluating and how still your pet can remain.
- Results and next steps: ECGs may be interpreted by the attending veterinarian and, when appropriate, additional interpretation or consultation may be recommended.
Our goal is to keep the process as comfortable as possible while collecting a high-quality tracing that helps guide medical decisions. If additional treatment is needed, we may discuss options ranging from preventive care (like parasite prevention and vaccinations) to supportive therapies such as laser therapy, based on your pet’s overall condition.
Ready to come in? You can schedule an appointment and consider signing up for text reminders to help you stay on track with rechecks and follow-ups.
ECG vs. Echocardiogram: What’s the Difference?
These tests sound similar, but they answer different questions:
- ECG/EKG (Electrocardiogram): Records the electrical activity of the heart. Best for evaluating heart rhythm and certain conduction abnormalities.
- Echocardiogram (Echo): An ultrasound that evaluates the structure and function of the heart (chambers, valves, wall motion, and pumping ability). Learn more about our ultrasound services.
In many cases, an ECG is one piece of the puzzle. If the ECG or physical exam findings suggest additional investigation is needed, we may recommend an echocardiogram, X-rays, and/or other diagnostics to help reach a diagnosis and treatment plan.
What Happens If My Pet’s ECG Is Abnormal?
An abnormal ECG can mean many different things—some findings are mild and simply need monitoring, while others may require treatment or additional diagnostics. If your pet’s ECG shows an arrhythmia or other concerning change, we’ll talk with you about:
- What the ECG finding may indicate (and what it doesn’t tell us)
- Whether additional diagnostics are recommended (for example, chest X-rays, bloodwork, blood pressure measurement, and/or an echocardiogram via ultrasound)
- Whether medication, monitoring, or referral is appropriate based on your pet’s overall condition
Most importantly, we’ll tailor recommendations to your pet—age, symptoms, exam findings, and overall health all matter when deciding next steps. If medications are prescribed, you can learn about convenient refill options through our online pharmacy or our fully stocked pharmacy.
To schedule an appointment, please call (713) 468-7955, request an appointment online, or contact us.
FAQs About Pet Electrocardiography (ECG/EKG)
Is an ECG painful for pets?
No—an ECG is non-invasive and typically painless. The test involves placing small clips/leads on the skin to record the heart’s electrical activity.
How long does a pet ECG take?
The recording itself is often brief (sometimes under a minute), but the total appointment time can vary depending on your pet’s needs, how calm they are during the test, and whether additional diagnostics are recommended.
Does my pet need to be sedated for an ECG?
Many pets do not need sedation, but your veterinarian will make recommendations based on your pet’s comfort, stress level, and the quality of tracing we’re able to obtain. If sedation or anesthesia is being discussed for another procedure (such as dental care or surgery), we’ll review individualized pre-anesthetic screening needs.
What’s the difference between an ECG and an echocardiogram?
An ECG measures the electrical rhythm of the heart, while an echocardiogram uses ultrasound to evaluate the structure and function of the heart (chambers and valves). See ultrasound for details.
Will an ECG tell you if my pet has heart disease?
An ECG can identify rhythm and conduction issues and may suggest the need for further evaluation, but it usually isn’t a stand-alone test for all forms of heart disease. Your veterinarian may recommend additional diagnostics depending on the situation.
Can cats have ECGs too?
Yes. ECGs can be performed in both dogs and cats when heart rhythm or cardiac screening is needed.
How do I schedule an ECG for my pet?
Please call (713) 468-7955 or contact us. You can also request an appointment online. If you already have an appointment scheduled, you may find helpful paperwork on our Forms page.
I’m a new client—where should I start?
Start here: New Clients. You can also learn more about us and meet our veterinary team.
Visit Village Veterinary Clinic
Village Veterinary Clinic is proud to serve Memorial, the Memorial Villages (Hedwig Village, Hunter’s Creek Village, Piney Point Village, Bunker Hill Village), Spring Branch, and surrounding Houston-area communities.
Address: 8785 Gaylord Dr, Houston, TX 77024
Call: (713) 468-7955
Business Hours:
Mon – Fri: 7:00am – 6:00pm
Saturday: 8:00am – 12:00pm
Sunday: Closed
If you have questions about your pet’s heart health or want to schedule an ECG/EKG, please contact us or book an appointment. For other care needs, explore our services, including nutritional counseling, microchipping, and boarding. If you’re navigating end-of-life decisions, please see our hospice and euthanasia services page.
Additional resources: our Accessibility information and COVID-19 pet safety guidance.