Labels:text | screenshot | font | black | black and white | document OCR: ing birth Levels of TSH, T4, and T3 change follow mmencing (Fig. 15.5). A sharp rise in serum TSH, co minutes with delivery, peaks approximately thirt ur hours, after birth. This decreases rapidly after fo ht hours, tothen more slowly over the next forty-eig İh reach normal levels within a week of bir n 50mu/1) Persistently high TSH values (greater th occur five days after birth in congenital els rise hypothyroidism (see Fig. 15.21), ÜT4 lev after birth, rapidly during the first forty-eight hours mge with values reaching the hyperthyroid r ty-eight Levels peak between twenty-four and for range hours and fall back into the normal adul livery and within two weeks. T3 levels are low at d onversion rise rapidly due to increased peripheral tely of T4 to T3. Peak values occur approxim 11 to twen ...
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