I would work very closely with your pediatrician and ask for referral, with positive antibodies, elevated
tshPituitary and tsh
Tsh this is hypothyroidism, they need to get a free
T4T4 test, to decide if this is subclinical hypothyroidism, If the free
T4T4 test is low then she would benefit from treatment.
Hashimoto's thyroiditis is the most common form of hypothyroidism other than iodine deficiency in certain areas of the World. It is caused by autoimmune destruction of the thyroid gland. Mostly all patients have positive antibodies to one or both of the thyroid antigens like you have above thyroglobulin and thyroid peroxidase. It can be precipitated by infection, stress, steroids, radiation exposure and iodine.
Treatment is with thyroid hormone in the face of hypothyroidism.Thyroid hormone is critical for neurological, cardiovascular, gastrointestinal and overall metabolic and reproductive needs. monitoring of dosing and labs to assess response to treatment is key to adequate replacement.