Labels:text | screenshot | black | black and white | monochrome OCR: us states Fig. 15. 14 Thyroid function tests in vari ing agents The distribution of isotope between bind hyroid (resin or Sephadex and the free sites on In the hormone binding proteins is shown. (a) , and TSH euthyroid state, levels of free T4, total T4 ect testing, are within the normal range. Using ind normally 1251-T3 attached to a binding agent (BA). ling sites s (THBP), resin or Sephadex, competes for free bin on the thyroid hormone binding protein A and mainly TBG, and competition between THBP is approximately even. (b) In the otal T4 are hyperthyroid state, levels of free T4 and L. On increased, and TSH levels are suppresse occupied onindirect testing, few binding sites are un d to the THBP, and most 1251-T3 remains attach lism binding agent. (c) In primary hypothyroi TSH is levels ...
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