low T4 syndrome

low T4 syndrome

A 'laboratory' disease seen in Pts undergoing regular hemodialysis or continuous ambulatory peritoneal dialysis, in which 40% have serum T4–thyroxine < than 5 µg/dl but who have normal free T4 levels.
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have classified the patterns of abnormalities of thyroid hormone levels in ESS into four major types namely low T3 syndrome, low T3 and low T4 syndrome, high T4 syndrome, other variants.3 Low T3 Syndrome is defined as a condition in which T3 is decreased but T4 and TSH levels remain normal due to the impaired conversion of the inactive pro-hormone T4 to the biologically active hormone T3 by 5 monodeiodinase in the liver.4 It is the most common abnormality amongst NTIs observed.