Subsequent monitoring and follow-up

1st visit after screening result occurs by day 11 of life.
2nd visit: Subsequent visit should be within 7 to 10 days after starting treatment. At this visit:
- Carry out thyroid imaging if applicable (isotope scan needs to be performed before this visit).
- Ensure that fT4 is in the normal range.
- Ensure that the family is managing OK.
- Provide further counselling.
3rd visit: Next visit should be 7 to 10 days.

Suggested follow-up intervals after one month of age provided thyroid function tests have normalised
From (age)	Until (age)	Suggested interval
1 month	6 months	2 to 4 weeks
6 months	1 year	4 to 8 weeks
1 year	5 years	3 to 6 months
5 years	Completion of growth	6 to 12 months (if reasonable compliance)

N.B. We would always suggest additional clinic visits following dosage alteration or when there are problems with poor adherence.

At puberty / rapid growth or weight gain, more frequent monitoring is recommended.