Thyroid Testing

Hypothyroidism is the most common endocrine disorder of dogs. Nearly 90% of cases result from autoimmune thyroiditis, the heritable autoimmune disease that progressively destroys the thyroid gland. Classical clinical signs of hypothyroidism only appear once >70% of the gland is damaged.


Hyperthyroidism is the second most common endocrine disorder of middle aged and older cats, after diabetes. These cats often have concurrent kidney disease, making it difficult to identify the hyperthyroidism without a more complete thyroid profile. Measuring T4 alone can be misleading as this hormone  can be suppressed into the upper end of the normal reference range by any non-thyroidal illness.




Through our partnership with Hemolife Diagnostics, we offer the following panels:

  • T5 Panel (T4, free T4, T3, free T3, & TgAA)
  • T4 Panel (T4, free T4, T3, free T3)
  • you can also add TSH to any panel above

*Please submit a separate sample of 2-3mls of serum if requesting an allergy test.