Question 66 of 433
Do I need a “full” thyroid panel with reverse T3 and antibodies?
The short answer
SKIP it unless your TSH is abnormal or you have clear symptoms. TSH first is the right approach.
Reverse T3 has no validated use in ordinary practice. Thyroid antibodies can predict future underactivity but rarely change what is done while the TSH is normal. “Optimal” TSH ranges narrower than the laboratory’s are not supported by outcome evidence. I have, in the past, written about tighter targets; the evidence has not borne them out, and I no longer chase them.
“This book is for education. It is not medical advice, and reading it does not make you my patient or create a doctor-patient relationship.” From the book’s medical disclaimer. Full disclaimer
GUIDELINE-BASED — Suspected thyroid disease: TSH-led assessment; routine reverse-T3 optimization is unsupported.Evidence grade (draft mapping)GGuideline-based / consensusPart 5, Q66 · Part sources
From Longevity Unmasked by Afshine Ash Emrani, MD, FACC. Medical disclaimer. This book is for education. It is not medical advice, and reading it does not make you my patient or create a doctor-patient relationship. Nothing here is meant to diagnose, treat, cure, or prevent any disease. Medicine is personal: a test, drug, supplement, or exercise plan that helps one person can harm another. Do not start, stop, or change any medication or treatment because of something you read in these pages. Talk with a licensed clinician who knows your history first. If you think you are having a medical emergency, call 911. The author disclaims responsibility for any loss or harm arising from use of the information in this book.