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Essential Thyroid Function Panel

A thyroid function assessment that measures antibodies and reverse T3 to uncover the root causes of fatigue, weight changes, and metabolic issues.

What we test

  • Selenium
  • Iodine, Serum/Plasma
  • Free T4
  • Free T3
  • Thyroid-Stimulating Hormone
  • Free T4 Index (T7)
  • T3, Uptake
  • T4 (Thyroxine), Total
  • Reverse T3
  • Thyroglobulin antibodies
  • Thyroid Peroxidase Antibodies (TPO)

FAQ

Answers to common questions about panels, results, and your plan.

Photo of Angel V. Shannon, MS, AGPCNP-BC

Angel V. Shannon, MS, AGPCNP-BC

Hi, I'm Angel Shannon. My mission is simple: close the gap between normal and optimal to help you change your life, not just your symptoms. As a Board Certified Nurse Practitioner and founder of Seva Health and The Seva Institute, I've spent 30+ years translating clinical medicine into a life that's longer, sharper, and more deeply lived. Functional lab testing is where that starts — real data on what's actually happening in your body, not just what falls in a "normal" range. I specialize in all things related to building a better brain to help you design the life you truly deserve.

My website

Focus areas

  • Cardiovascular Health

  • Immune Health

  • Mental Health

  • Neurological Health

States of practice

  • Maryland