Treatment Principal Give thyroxine as early as possible SH and ft4 should be monitored and maintained in the normal range Confirmation of diagnosis may be necessary for some infant to rule out the possibility of transient hypothyroidism at 2-3 vears oldTreatment Principal • Give thyroxine as early as possible • TSH and FT4 should be monitored and maintained in the normal range • Confirmation of diagnosis may be necessary for some infant to rule out the possibility of transient hypothyroidism at 2~3 years old