2695 East Foothill Blvd

Pasadena, CA 91107 US


BAER Hearing Test

For breeds predisposed to deafness or patients experiencing hearing loss, Rose City Veterinary Hospital offers a non-invasive hearing test to diagnose deafness in canine and feline patients. This hearing test is known as the brainstem auditory evoked response (BAER) this test detect electrical activity in the Chochlea and auditory pathways in the brain. This non-invasive procedure is done with extremely small electrodes placed under the skin of the scalp and one in front of each ear, our veterinarian is able to monitor the signals on a special computer and diagnose deafness during the same visit. 

Commonly as Questions:

Is this procedure painful? 

During this procedure the veterinarian places small electrodes under the patient's skin; there have been reports of minor irritation at these sites. Typically the redness subsides in a matter of a few hours. 

What is deafness caused by?

Temporary hearing loss can be cause by wax build-up, foreign object or even hair. Permanent hearing loss can be caused by old age, drug toxicity, injury or untreated ear infections. Once the veterinarian has ruled out any of the above they may recommend the BAER hearing test. There are certain breeds that have increased chance of inherited deafness. These breeds tend to be spotted, merle colored breed, or pieblad. In pure-bred felines that carry the white (W) pigmented gene are at a higher risk of congenital deafness.

In there a cure for deafness?

Although hearing aids have become increasingly sophisticated patients with inherited deafness unfortunately do no benefit from them. For patients experiencing temporary hearing loss the use of medication or Hyperbaric Oxygen Therapy (HBOT) may help restore hearing. 

How can I communication with my deaf dog?

Be comforted in knowing that deafness in pets is more common then we think. Patience, love and training are key to helping you communicate with your pet. Training your pet to use hand signals, flash light or laser penlight will help you and your pet. 

Preston was presented to our team when his mommy noticed that he was no longer greeting her at the door or running to the bowl when it was time for feeding. With the help of the BAER hearing test our veterinarian was able to diagnose Preston with complete hearing loss in one ear and partial in the other; with the use of Hyperbaric Oxygen Therapy we were able to restore hearing in both ears. The cause of Preston's temporary hearing loss is still unknown but we are happy with his outcome. 

Sign up using the form or call 626-796-8387 to make your appointment.

Office Hours

Our Regular Schedule


9:00 am

8: 00 pm


9:00 am

6:00 pm


9:00 am

6:00 pm


9:00 am

6:00 pm


9:00 am

6:00 pm


9:00 am

4:00 pm





Find us on the map


Read What Our Clients Say

  • "Have been taking my cats to RCVH for years. The Vets and office staff have always been great. My current Vet Dr. Brickman is exceptional: she took over from my previous Vet who moved away. She is very patient and listens to my concerns regarding my elderly male cat. She is a real professional."
    Lori H. Pasadena, CA

Featured Articles

Read about interesting topics

  • What to do when your pet gets lost?

    Has your pet wriggled their way through the fence or dashed out the front door? When searching for your lost pet, make sure you include these steps in your hunt. ...

    Read More
  • Flea and Tick Season

    Want to protect your pet from fleas and ticks? These tips can help. ...

    Read More
  • Summer Grooming Tips

    Want to keep your pet cool and comfortable this summer? A few changes to your normal grooming routine can help. ...

    Read More
  • What to Do If Your Pet is Stung

    Don't get us wrong, we love the bees! But we don't love when our pets get stung. Follow our tips to treat and prevent bee stings on your furry best friend. ...

    Read More
  • Tips for Traveling With Your Pet

    Do you dread hitting the road with your pet? These tips may make the trip more comfortable and enjoyable for you both. ...

    Read More
  • 6 Questions to Ask At Your Senior Pet's Next Check Up

    Want to keep your senior pet healthy and happy? Ask these six questions at your pet's next check up. ...

    Read More
  • Why the Controversy About Pet Vaccinations?

    As with anything, pet vaccinations can be too much of a good thing. Similar to parents who are learning more about vaccinations for children, veterinarians and pet owners alike are beginning to question some of the standard wisdom when it comes to protecting pets. There are certain fatal diseases against ...

    Read More
  • Pet Clothes: A Fashion Statement or a Necessity?

    There is nothing cuter than a pet in a colorful sweater, but do our furry friends really need to wear clothing? Although clothing is not a necessity for every pet, some animals benefit from a little extra protection during cold or damp days. Others enjoy wearing festive clothing during holidays or other ...

    Read More
  • Introducing a New Pet to Your Current Ones

    Pet Proofing Your Home Introducing your new pet to your current one is only a single part of the equation relating to taking a new pet home. You also have to make sure your new pet is comfortable in your home, which is a foreign environment to the animal. Like humans, animals can experience high levels ...

    Read More
  • Put Some Teeth Into Your Pet’s Dental Care

    According to the American Animal Hospital Association, nearly two-thirds of pets suffer from dental problems because their owners do not provide dental care for them. Imagine what would happen to your own teeth if they were never brushed or examined by a dentist. The same thing can happen with your pet’s ...

    Read More

Newsletter Sign Up