The thyroid stimulating hormone (TSH) is produced and secreted by the pituitary gland and stimulates the thyroid to produce T3 and T4. When TSH is elevated, low thyroid function may be indicated. If TSH is low it is indicative of high thyroid function. A study found that TSH was suppressed in all subjects after food, so fasting may be suggested although it is not reqired by Quest. Free T4 and Free T4 values did not change significantly after eating.
This panel is the most inclusive of all offered on the site for men who want a wide picture of their health or who are considering starting testosterone replacement therapy. It provides a baseline overview of your sex hormones, thyroid gland, adrenal function, metabolic function, cholesterol, prostate, and overall health. Tests included:
This panel includes comprehensive testing of the thyroid stimulating hormone (TSH) in addition to free thyroxine (T4) and free triiodothyronine (T3).
T3 or triiodothyronine is the active form of the thyroid hormone. T3 acts as a metabolic throttle for fueling all of the daily cellular functions. Free T3 is the unbound portion of T3 that is biologically active.
This test measures thyroglobulin antibodies commonly present in patients with Hashimoto's thyroiditis. Antibodies against the protein thyroglobulin can result in the destruction of thyroid cells. This destruction can lead to hypothyroidism. NOTE: Dietary supplements containing biotin may interfere in assays and may skew results to be either falsely high or falsely low. For patients receiving the recommended daily doses of biotin, draw samples at least 8 hours following the last biotin supplementation. For patients on mega doses of biotin supplements, draw samples at least 72 hours following the last biotin supplementation.
This lab test panel includes lab tests ordered by many physicians performing comprehensive annual physical exams. It does not include the actual physician's physical exam, only these six tests:
This fertility panel for women contains the main hormones tested (most using the most sensitive liquid chromatography/mass spectrometry) by reproductive endocrinologists to assess the potential for a woman to become pregnant. Tests included are: LH, FSH, Anti-Müllerian Hormone (AMH), estradiol (LC/MS), progesterone (LC/MS), TSH and testosterone (LC/MS).
The most complete of all blood test panels for men that include: Total and Free Testosterone, Ultra Sensitive Estradiol, IGF-1, Prolactin, DHT, DHEA-S, PSA, SHBG, Lipids, CBC, CMP, and Thyroid Function (TSH, Free T3, Free T4).
The thyroid gland produces and secretes T4, otherwise known as thyroxine. Proteins bind to T4 and carry it throughout the bloodstream. Once in the tissues, T4 is released from the proteins and is now free to convert into the more active form called T3. For this reason, many doctors believe that measuring free T4 is a more sensitive test for thyroid hormone production.
1. TSH (Thyroid Stimulating Hormone) Test The TSH test is crucial for diagnosing Hashimoto's disease. It gauges the level of TSH that the pituitary gland produces, which in turn stimulates the thyroid to produce T4 and T3 hormones. Elevated TSH levels can indicate hypothyroidism, commonly associated with Hashimoto's disease 2. Thyroid Hormone Tests These tests measure the levels of free T3 (free triiodothyronine) and free T4 (free thyroxine) in the blood. A low level of free T4, along with an elevated TSH level, is a key indicator of Hashimoto's disease 3. Thyroid Antibody Tests Most individuals with Hashimoto's disease have thyroid peroxidase (TPO) antibodies in their blood. Testing for these and other thyroid-related antibodies is a significant step in diagnosing the condition 4. Thyroglobulin Antibody Test This test screens for antibodies against thyroglobulin, a protein in the thyroid gland. High levels are another marker of Hashimoto's disease
This hormone panel for women contains all basic hormones (except for LH and FSH, which you can add to your cart separately): DHEA-S, Estradiol (CLIA assay), Progesterone, Total Testosterone, LC/MS, Free Testosterone by Equilibrium Ultrafiltration, TSH,Free T3 and Free T4
