Thyroid Function Test

The Thyroid Function Test checks how well your thyroid gland is working. It usually includes measuring TSH (Thyroid Stimulating Hormone), T3, and T4 levels. These hormones control your body’s metabolism, energy, and mood. Abnormal levels can indicate conditions like hypothyroidism (underactive thyroid) or hyperthyroidism (overactive thyroid). Symptoms such as fatigue, weight changes, or mood swings may prompt your doctor to order this test.