EFFECTS OF EXPERIMENTAL THYROTOXICOSIS ON COMPLETE BLOOD COUNT IN CATS.

Abstract

The interrelation between thyroid gland and clinical changes was studied in adult intact cats kept under hyperthyroid state for 42 days. Parameters measured were red blood cell count (RBC), haemoglobin concentration, haematocrit, MCV, MCHC, total leukocytes (WBC) and differential leukocyte count. These characteristics were correlated with free and total T4 and total T3 serum concentrations. Excessive circulant thyroid hormones led to increased RBC, haematocrit, MCV, WBC, neutrophils, lymphocytes, eosinophils and monocytes in the studied cats. There were negative correlation between RBC and total T4 at the first weeks but positive correlation at the end of the experimental period. Leukocytes demonstrated negative correlation with free and total T4 levels. KEY-WORDS: Feline. Complete blood count. Hyperthyroidism.