The FT3 test measures the levels of Free Triiodothyronine, the active form of thyroid hormone circulating in the bloodstream. FT3 plays a crucial role in regulating metabolism, energy production, and overall cellular function. Abnormal FT3 levels can indicate thyroid disorders such as hyperthyroidism or hypothyroidism.
Free Triiodothyronine (FT3) is a critical thyroid hormone that plays a pivotal role in regulating metabolism, energy production, and various physiological processes in the body. Unlike Total Triiodothyronine (T3), which includes both bound and unbound forms, FT3 specifically measures the biologically active form that is not bound to proteins and is readily available to enter cells and exert its effects.
FT3 influences metabolic rate, protein synthesis, and the body's sensitivity to other hormones. It affects almost every organ system, including the heart, digestive system, muscles, bones, and the central nervous system. FT3 levels are tightly regulated by the hypothalamus, pituitary gland, and thyroid gland through a complex feedback mechanism involving Thyroid-Stimulating Hormone (TSH).
Abnormal FT3 levels can indicate thyroid dysfunction. Elevated FT3 may suggest hyperthyroidism (overactive thyroid), characterized by symptoms such as weight loss, rapid heartbeat, and heat intolerance. Conversely, low FT3 levels may indicate hypothyroidism (underactive thyroid), leading to symptoms like fatigue, weight gain, and cold intolerance.
Measuring FT3 is crucial for diagnosing thyroid disorders, monitoring treatment effectiveness, and adjusting medication dosages to maintain optimal thyroid function and overall health.
We provide blood tests in Noida, Gurgaon, Faridabad, Delhi, Indirapuram, Ghaziabad, Greater Noida, and Greater Noida Extension(west).
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