Final answer:
The standard equation for determining thyroid uptake is the TSH level in the blood. TSHs examination is a test to measure levels of Thyroid Stimulating Hormone (TSH) in the blood. This hormone has a big role in the body's metabolic processes. Almost every cell in the body's tissue contains the TSH hormone.
Step-by-step explanation:
TSH examination, along with FT3 and FT4 is important for evaluating thyroid gland function and identifying thyroid disorders. TSH results that are too high indicate that the thyroid is unable to produce enough thyroid hormone. This condition is called hypothyroidism or underactive thyroid. This condition can be an indication that a person has Hashimoto's disease (an autoimmune disease that attacks the thyroid gland)
In the diagnosis and treatment of thyroid conditions, the difference in administered and excreted radioiodine is used to infer the gland's functioning. Hyperthyroidism can be indicated by excessive uptake of iodine due to an overactive thyroid, whereas hypothyroidism is characterized by insufficient uptake.