What are the tests for thyroid nodules?

TSH ultrasound: Tsh (blood test) to check thyroid function, ultrasound to characterise the nodule (how many, size, solid vs. Cyst, suspicion for malignancy), fine needle aspiration (fna) for suspicious nodules.

Labs and FNA: Any thyroid nodule over 1 centimeter deserves the attention of a thyroid specialist, either an endocrinologist or thyroid surgeon. They will recommend a detailed ultrasound, thyroid function tests (labs) and an ultrasound guided fine needle aspiration (fna) of the nodule.

Tests thyroid nodles: Free T4 and TSH are the basics. These two determine high (hyper), normal, or low (hypo) thyroid. Then f autoimmune disease is a consideration, thyroglobulin, anti Thyroglobulin antibody, thyroid peroxidase and anti thyroid peroxidase will be ordered.