Peer-reviewed veterinary case report
Measuring free thyroxine in hyperthyroid and normal cats
By Paradis, M & Pagé, N·Published in Journal of the American Animal Hospital Association·1996·Department of Clinical Sciences, Canada·View original on PubMed →
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Original publication title: Serum free thyroxine concentrations measured by chemiluminescence in hyperthyroid and euthyroid cats.
- Species:
- cat
Plain-English summary
A group of hyperthyroid cats had their thyroid hormone levels checked using a new testing method. The results showed that these cats had much higher levels of free thyroxine (FT4) compared to healthy cats, indicating that the new test could be a good alternative to the traditional method that uses radioactive materials. This is important because it could make testing safer for both pets and veterinarians. While more research is needed, this new method may help in diagnosing thyroid issues in cats more easily.
People also search for: cat hyperthyroidism symptoms · cat thyroid test results · how to treat hyperthyroid cat
Abstract
Serum free thyroxine (FT4) concentrations using chemiluminescence were measured in hyperthyroid cats (n = 72) and clinically normal cats (n = 129) to establish reference values and to determine if this method could be a useful alternative to total T4 (TT4) measurement by radioimmunoassay (RIA). Mean serum FT4 concentration (68.3 +/- 26.8 pmol/L) of hyperthyroid cats was significantly higher than that of euthyroid cats (22.9 +/- 4.8 pmol/L). Reference values for basal FT4 of hyperthyroid and healthy cats were 33 to 114 pmol/L and 16 to 30 pmol/L, respectively. The results of the present study suggest that FT4 measured by chemiluminescence could be a useful alternative to TT4 measured by RIA when evaluating thyroid function in cats, since the hazardous effects of radioactive materials on the manipulators and the environment could be avoided. Further studies are required to corroborate these preliminary findings.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/8906725/