Yes absolutely, there is a hearing test called the BAER hearing test for pets. Typically it is offered at some veterinary colleges and also some internal specialists. I would check with your regular vet to see if they have some referrals for Peanut in the area. Other than that you can try snapping your fingers on either side of her head to see if she responds. I hope that Peanuts hearing is intact and well. Best wishes and take care.