The post treatment thyroid level was low to low normal, do I need to give thyroid supplementation?
It is not unusual for the initial thyroid levels to be low. It can take some time for the atrophied normal tissue to recover and produce thyroid hormone. If the thyroid level is low AND the patient is lethargic or inappetent, thyroid hormone supplementation may be necessary. Approximately 10% of iodine treated patients need prolonged thyroid hormone replacement.