Spuriously high thyroid hormone concentrations measured by chemiluminescent immunoassay attributable to anti-iodothyronine antibodies in a dog

Abstract

A 2.5-year-old female English setter was presented with clinicopathological findings suggestive of hypothyroidism. Thyroid-stimulating hormone (TSH: 4.3 ng/ml, normal <0.5), but also free thyroxine (FT4: 77 pmol/l, normal 7.7–48), total...