Collection: Thyroid Testing

What Is Measured?

The small butterfly-shaped thyroid gland at the base of the neck produces important hormones, necessary for metabolism, growth, and development.  A healthy thyroid works to regulate a number of processes and functions including the breakdown of food for energy, heart rate, respiration, body temperature, weight, and cholesterol.

Thyroid tests measure the amount of T3 (Triiodothyronine) hormone and T4 (thyroxine) hormone released by the thyroid into the bloodstream. TSH (thyroid-stimulating hormone), which stimulates the thyroid to release T3 and T4, TPOAb thyroid autoantibodies and Tg thyroglobulin, may also be measured. 

Related Symptoms

  • Weight Gain/loss
  • Feeling Hot/Cold
  • Sleep disturbances
  • Depression
  • Dry Hair/Hair Loss
  • Dry Skin
  • Fatigue
  • Muscle Aches
  • Memory Loss
12 products
  • Comprehensive Thyroid Profile-Blood+Urine Multi Test Kit ZRT Lab
    Comprehensive Thyroid Profile-Blood+Urine Multi Test Kit ZRT Lab
    Regular price
    $319.00
    Sale price
    $319.00
  • Thyroid Test - At Home Thyroid Test Kit - Essentials - Optimal Thyroid
    Thyroid Test - At Home Thyroid Test Kit - Essentials - Optimal Thyroid
    Regular price
    $190.00
    Sale price
    $174.99
  • Thyroglobulin (Tgbn) - Blood Spot Test Kit
    Thyroglobulin (Tgbn) - Blood Spot Test Kit
    Regular price
    $70.00
    Sale price
    $70.00
  • Elite Thyroid Profile Blood Spot: TSH, fT3, fT4, TPO, T4, Tgbn
    Elite Thyroid Profile Blood Spot: TSH, fT3, fT4, TPO, T4, Tgbn
    Regular price
    $289.00
    Sale price
    $289.00
  • Thyroid Complete Blood Work Panel
    Thyroid Complete Blood Work Panel
    Regular price
    $129.00
    Sale price
    $129.00
  • Thyroid Essential Blood Work Panel
    Thyroid Essential Blood Work Panel
    Regular price
    $60.00
    Sale price
    $60.00
  • Thyroid Peroxidase Antibody (TPOab) - Blood Spot Test Kit
    Thyroid Peroxidase Antibody (TPOab) - Blood Spot Test Kit
    Regular price
    $70.00
    Sale price
    $70.00
  • Total Thyroxine (T4) - Blood Spot Test Kit
    Total Thyroxine (T4) - Blood Spot Test Kit
    Regular price
    $70.00
    Sale price
    $70.00
  • Thyroid Stimulating Hormone (TSH) - Blood Spot Test Kit
    Thyroid Stimulating Hormone (TSH) - Blood Spot Test Kit
    Regular price
    $70.00
    Sale price
    $70.00
  • Free Triiodothyronine (fT3) - Blood Spot Test Kit
    Free Triiodothyronine (fT3) - Blood Spot Test Kit
    Regular price
    $70.00
    Sale price
    $70.00
  • Free Thyroxine (fT4) - Blood Spot Test Kit
    Free Thyroxine (fT4) - Blood Spot Test Kit
    Regular price
    $70.00
    Sale price
    $70.00
  • Essential Thyroid Profile TSH, fT3, fT4, TPOab-Blood Spot Test Kit ZRT Lab
    Essential Thyroid Profile TSH, fT3, fT4, TPOab-Blood Spot Test Kit ZRT Lab
    Regular price
    $175.00
    Sale price
    $175.00