While this treatment has been shown 95% effective, some cats do require a second radioiodine injection to achieve normal thyroid function. In an effort to allay your concerns about that possibility, we will happily retreat your cat for a reduced cost. While 95% of our patients will never need this option, our goal is to ensure that all of our patients receive the most complete treatment available.
In order to qualify for reduced cost re-treatment, your cat must be healthy enough (based on the interpretation of our veterinarians and your family practice veterinarian) to have the second radioiodine injection. The second treatment must also be based on urinalysis and blood chemistry including both a free T4 and total T4 Thyroid Profile (T4) lab results obtained from a reference laboratory showing that your cat still has hyperthyroidism. In-Clinic laboratory tests do not have the same accuracy and reliability as reference laboratory results, so a reference lab test is required to verify that your cat still has feline hyperthyroidism. AVS reserves the right to request a thyroid scintigraphy to determine if the patient is truly hyperthyroid.
The T4 result showing that your cat still has feline hyperthyroidism must be based on lab work run no less than 6 months from the date of treatment and no more than 18 months from treatment.
This guarantee is offered for treatments offered after September 15, 2018.