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Tests and Services

Special Chemistry: Endocrine and Nutritional Assessments

Endocrine assessments
The Special Chemistry Laboratory uses isotope dilution tandem mass spectrometry (MS-MS), a specific, reliable, and accurate technology, for thyroid function tests free T4 and free T3, and to measure 11 steroids used to diagnose endocrine patients with a variety of endocrine and metabolic abnormalities
  • Free T4, free T3
  • Testosterone
  • Androstenedione
  • DHEA
  • Corticosterone
  • 11-deoxycortisol
  • 17OH progesterone
  • Progesterone
  • Aldosterone
  • 25OH vitamin D
  • Estradiol, estrone, estriol
Nutrition assessments
In addition, the laboratory team uses high-performance liquid chromatography (HPLC) to measure Vitamin A and E and immunoassays for specific proteins, such as prealbumin and IGF1, to assist physicians in diagnosing a patient’s nutritional status.
Special Chemistry: Endocrine and Nutritional Assessments - Departments & Programs - Children's National Medical Center