Comprehensive Thyroid Profile
The thyroid gland produces hormones which are crucial in regulating many bodily functions, including basic metabolism. Thyroid function is also greatly influenced by the status of the adrenal glands. Thyroid disease is very broadly classified into two types. Hypothyroidism results from too little circulating thyroid hormones and is characterized by fatigue, weight gain, constipation, depression, hair loss, and mental or memory impairment. Too much thyroid hormone results in hyperthyroidism, which can cause nervousness, irritability, weight loss, frequency of bowel movement, impaired fertility, fatigue, muscle weakness, poor appetite, and menstrual disturbances.
TSH (Thyroid Stimulating Hormone) – Is a hormone produced by the pituitary gland and whose function is to signal the thyroid gland to make more thyroid hormone. It represents the pituitary’s need or desire for more or less thyroid hormone. An optimal value of TSH means the thyroid hormone levels match the body’s energy needs and/or ability to utilize the energy.
Free T3: Reflects the biologically active (free) form of T3 that can generate production of energy (in the form of ATP). This value is relatively stable and not influenced by estrogen dominance. The Free T3 test is not falsely increased by high levels of estrogens (birth control pills, non-bio-identical hormone replacement, or pregnancy) or estrogen dominance.
Free T4: Reflects the biologically active (free) form of T4. This T4 can be converted to T3 (the energy accelerator) or RT3 (the energy brake). This value is relatively stable and not influenced by estrogen dominance as noted in the Free T3 definition above.