Does a persons age affect the recovery rate from thyroid disease or the amount of supplemental thyroid medication needed? What is considered a “normal range” for TSH and T3 RIA readings?
Certainly age will affect the recovery rate from thyroid disease, both hyperthyroidism and hypothyroidism. The older the person, the slower the recovery rate and indeed with hypothyroidism, it is necessary to be extremely careful in older people about increasing the dosage of thyroxine. The normal range for TSH depends on the type of assay utilized. Currently with the sensitive assays now available, the usual normal range is between 0.3 and 3.5 milliunits/L. For the total serum triiodothyronine (T3RIA) once again assays vary a little bit from laboratory to laboratory but the average range is 1.2-3.4 nmol/L.
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