Skip NavigationSkip to Primary Content
The diagnosis of hyperthyroidism is a clinical diagnosis verified by laboratory tests. Because many factors affect thyroid laboratory test results, one normal value does not exclude the diagnosis in a symptomatic patient. A medical history, physical examination by a veterinarian, and diagnostic tests are required to confirm the diagnosis of feline hyperthyroidism.
In addition to the physical examination, referring veterinarians perform the following procedures before the cat is admitted:
Complete Blood Count (CBC)
Urinalysis with sediment exam
Complete chemistry/electrolyte panel
T4 and Free T4 if the T4 is equivocal – an absolute number is necessary (not a > value)
(optional at discretion of referring veterinarian)
(2 views, VD and Lateral) Whole body
(waived if the patient is extremely anxious)
(optional, but recommended)
Laboratory studies and other evaluations may be performed 4-6 weeks prior to admission. The Cat Thyroid Center reserves discretion to repeat any tests after examining the patient, on site, for an additional charge.
Referring veterinarians must ensure that a cat is fit for hospitalization and therapy. Dr. Ott and Dr. Heaton accept only medically stable cats. The cats we have treated have ranged in age from 6-21 years. Those with advanced renal disease may be poor candidates and require further evaluation before they are eligible.
If a cat is currently receiving antithyroid medication, e.g. Felimazole (methimazole), it must be discontinued at least 72 hours prior to treatment.
If you have questions regarding the treatment of Feline Hyperthyroidism and how we can help your cat, visit the contact page and fill out the Inquiry Form and a representative will contact you.