Thyroid Function Tests: A Complete Guide to TSH, T3, and T4 Levels
Thyroid Function Tests: A Complete Guide to TSH, T3, and T4 Levels Your thyroid gland - a small, butterfly-shaped organ at the base of your neck - serves as your body's metabolic control center. By producing thyroid hormones, it regulates crucial functions including: · Energy levels and metabolism · Body temperature · Heart rate · Brain development · Muscle strength · Weight management · Mood regulation When this delicate system malfunctions, it can lead to either hypothyroidism (underactive thyroid) or hyperthyroidism (overactive thyroid) . Thyroid function tests (TSH, T3, T4) provide critical insights to diagnose these conditions affecting 1 in 10 Americans according to the Am...