Thyroid stimulating hormone secretion is a dynamic process

Establishment of pediatric reference intervals on a large cohort of healthy children

“…Although our data cannot be directly compared to that from CALIPER (they did not provide data for their 6-10 year age group) we found the TSH range to be substantially lower than in the slightly older children. We have shown that TSH is a hormone which may increase acutely in response to stress [21] and this too may reflect some subclinical illness in the CALIPER children. We can compare our data with Zurakowski et al [22] who collated outpatient's results from the Children Hospital in Boston over a three year period.…”