Pet Symptom Checker

Atrioventricular block

Medical name: Atrioventricular block


  • Easily worn out
  • Slow heartbeat
  • Unconsciousness
  • Weakness


An atrioventricular block in pets refers to a condition in which conduction between the atria and the ventricles of the heart (or the chambers of your pet’s heart) is impaired. If your pet is suffering from an atrioventricular block, he may tire easily, or exhibit weakness or even unconsciousness. He may also exhibit a slow heartbeat. To take your pet's pulse, with your dog sitting or lying in a relaxed position, locate the heart (on the left side of the chest near the elbow) with the palm of one hand (the other hand can restrain or reassure your dog). Count beats for 15 seconds and multiply by 4 to get beats per minute. For a small dog (up to 20 pounds) at rest, a normal heart rate is 70-180 beats per minute. Medium- and large-size dogs’ hearts (at rest) beat at an almost-humanlike 60-140 beats per minute. Young puppies (up to 6 weeks) race along at as much as 220 beats. If your pet is experiencing an atrioventricular block, your vet can confirm the diagnosis in order to treat accordingly. In some cases, a pacemaker might help.

Zootoo does not provide veterinary medical advice, diagnosis, or treatment. Always seek the advice of a veterinarian with any questions you may have regarding your pet’s medical condition.
If you think your pet may be experiencing a medical emergency, call your veterinarian or an emergency animal care facility immediately.

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