Advanced Thyroid Panel - Bioref

Your thyroid sets the pace for your metabolism, energy production, and how efficiently your body turns food into fuel, so persistent fatigue, unexplained weight changes, cold intolerance, or sluggish recovery often trace back here. This panel answers several distinct questions at once: TSH shows how hard your pituitary is signaling the thyroid, while Free T4 and Total T4 reflect the main hormone your thyroid actually produces. Because the active hormone is T3, measuring T3 alongside T4 reveals how well your body is converting the storage form into the usable form — a step that can be disrupted by stress, illness, or under-fueling even when TSH looks normal. The Anti-Thyroglobulin antibody adds an autoimmune lens, helping identify Hashimoto's-type activity that can drive thyroid dysfunction before hormone levels drift out of range. Interpreted together, these markers distinguish a production problem from a conversion problem from an autoimmune process — a picture no single test provides. Ordering all six through one blood draw is more convenient and typically more economical than requesting them piecemeal, and gives you a coherent baseline to share with your clinician.