This test measures the free form of T4 hormone (FT4) in your blood

• Why Take this Test

  Free T4 is the metabolically active fraction of thyroxine. This assay is useful for diagnosing both Hypo / Hyperthyroidism.

• Is this Test For You

  Your doctor will recommend this test for you if you have the symptoms of hypo or hyper-thyroidism.

  Symptoms of Hypothyroidism:

  Sudden Weight Gain

  Dry Skin

  Constipation

  Puffy Skin

  Hair Loss

  Fatigue

  Menstrual Irregularity

  Symptoms of Hyperthyroidism:

  Increased Heart Rate

  Anxiety

  Weight Loss

  Tremors

• More Information

  Thyroxine (T4) is a hormone, secreted by the thyroid gland (small, butterfly-shaped gland located in front of the neck). The T4 hormone is essential for growth and metabolism. T4 circulates in the blood in two forms: free form (FT4) and bound form.

Sample: 2 mL of Serum

Methodology: CLIA