In case of hypothyroidism which investigation is most informative and most commonly used:
TSH* Most informative among thyroid function test parameters because of ultra-sensitivity* Can detect subclinical hypothyroidism & subclinical hypehyroidism* Hypothyroidism - TSH |* Hypehyroidism - TSH |
Serum TSH level
Serum T3 and T4 level
Serum calcitonin assay
Serum TRH assay
Thyroid