The Thyroid Profile V measures the levels of butanol-extractable iodine (BEI), protein-bound iodine (PBI), free thyroxine (free T4), total thyroxine (T4), T4 iodine, free thyroxine index (FTI), total triiodothyronine (T3), free triiodothyronine (free T3), and thyroid-stimulating hormone (TSH) in the blood, crucial for evaluating thyroid function. We use the Chemiluminescence (CMIA) technique to ensure accurate and reliable results.