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Figure 1: Diagnostic algorithm for congenital hypothyroidism. Note that each screening program sets its own T4 and TSH cutoffs. The results for serum TSH, free T4, T4 and T3 resin uptake are typical for neonates around 2 week of age. It is important for clinicians to compare serum results to age-normal reference ranges for their specifi c laboratory. *LaFranchi. Approach to the Diagnosis and Treatment of Neonatal Hypothyroidism. J Clin Endocrinol Metab 2011 Oct;96(10):2959-67. doi: 10.1210/jc.2011-1175

Figure 1: Diagnostic algorithm for congenital hypothyroidism. Note that each screening program sets its own T4 and TSH cutoffs. The results for serum TSH, free T4, T4 and T3 resin uptake are typical for neonates around 2 week of age. It is important for clinicians to compare serum results to age-normal reference ranges for their specifi c laboratory. *LaFranchi. Approach to the Diagnosis and Treatment of Neonatal Hypothyroidism. J Clin Endocrinol Metab 2011 Oct;96(10):2959-67. doi: 10.1210/jc.2011-1175