Changes in clinical and laboratory findings in cats with hyperthyroidism from 1983 to 1993.

J Am Vet Med Assoc 206[3]:302-5 1995 Feb 1

Broussard JD ; Peterson ME ; Fox PR

Overall, the frequency and severity of many clinical features of hyperthyroidism in casts has decreased over the past 10 years since the first cases of the disease were reported. However, the signalment and many of the most common laboratory abnormalities have not changed and remain useful indicators of the disease. High serum T4 concentration remains the hallmark of hyperthyroidism, but a few cats with mild disease require provocative testing to confirm the diagnosis.