In Singapore, all newborns undergo screening for Congenital Hypothyroidism using their umbilical cord blood Thyroid-Stimulating Hormone (TSH) level. Elevated cord blood TSH levels require a confirmatory blood test measuring TSH and thyroid hormone levels. A diagnosis is confirmed if the blood test indicates high TSH levels, followed by special investigations, including a scintigraphy scan, to identify the cause.
Treatment involves daily oral administration of thyroxine tablets. The dosage is adjusted as the child grows, based on regular blood test results. Parents should consult a paediatric endocrinologist for ongoing management and follow-up.