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  • Blood Test: T4 (Thyroxine) for Parents


    Doctors may order the T4 blood test if symptoms suggest any kind of thyroid disorder.

  • Endocrine Glands, Growth & Diabetes for Parents


    Learn about health conditions like diabetes.

  • Genetic, Chromosomal & Metabolic Conditions for Parents


    Learn about conditions that can be caused by changes in our genes.

  • Blood Test: T3 Resin Uptake (T3RU) for Parents


    Doctors may order the T3 resin uptake when a child's symptoms or previous blood tests seem to suggest thyroid dysfunction.

  • Blood Test: Thyroglobulin Antibodies (TgAb) for Parents


    The thyroglobulin antibodies test is used to help diagnose autoimmune conditions involving the thyroid gland, or when thyroid disorders are suspected.

  • Endocrine System for Parents


    The glands of the endocrine system and the hormones they release affect almost every cell, organ, and function of our bodies.

  • Blood Test: T3 Total (Triiodothyronine) for Parents


    The T3 total test is part of an evaluation of thyroid function. It's particularly useful in diagnosing hyperthyroidism, which can cause symptoms such as a fast heart rate, weight loss, trembling and sweating.

  • Endocrine System for Teens


    The endocrine system influences almost every cell, organ, and function of our bodies. It is instrumental in regulating mood, growth and development, metabolism, and sexual function, among other things.

  • Glands, Hormones & Diabetes for Kids


    The glands of the endocrine system produce hormones, special chemicals your body needs. Find out more in these articles for kids.

  • Delayed Puberty for Parents


    Puberty usually begins in girls 8-14, and in boys 9-15. If kids pass this normal age range without showing any signs of body changes, it's called delayed puberty.