Aa
Aa
A
A
A
Close
Avatar universal

How normal are thyroid antibodies?

Dear Dr. Lupo:

Does having any detectable thyroid antibodies are of any significance?

I just had a full thyroid panel and wonder if the antibodies results are of any significance:

TSH - 1.54 uIU/mL (0.35 - 4.94)
T4 Total - 8.55 ug/dL (4.87 - 11.72)
T Uptake - 43.3 % (32 - 51)
Free Tiroxine Index - 9.26 ug/dL (5.93 - 13.13)
T3 Total - 1.03 ng/ml (0.58 - 1.59)
T3 Free - 2.90 pg/mL (1.7 - 3.7)
T4 Free - 1.37 ng/dL (0.70 - 1.48)
Thyroglobulin Autoantibodies - 26.6 U/mL (Reference range 0-34)
Thyroid Peroxidase Autoantibodies - 5.5 U/mL (Reference range 0-12).

I was told that sometimes the lab equipment that measures the antibodies will never give you values of zero, but I really don't know.

Thanks and your help is greatly appreciated,
Roberto
3 Responses
Sort by: Helpful Oldest Newest
Avatar universal
A related discussion, thyroid disorder was started.
Helpful - 0
Avatar universal
mine measured 1500 once and in the 300's another time...Just for a reference.  I was diagnosed with Hashimoto's.
Helpful - 0
97953 tn?1440865392
MEDICAL PROFESSIONAL
Thyroid antibodies within the reference range are considered normal.  While it seems that normal should be "zero", low levels of antibodies (even against parts of our own body!) are seldom clinically significant.  I would interpret the thyroid panel and antibodies as normal and check a TSH yearly to screen for thyroid disease -- which based on the above data you are at low risk to develop.
Helpful - 0

You are reading content posted in the Thyroid Cancer / Nodules & Hyperthyroidism Forum

Popular Resources
We tapped the CDC for information on what you need to know about radiation exposure
Endocrinologist Mark Lupo, MD, answers 10 questions about thyroid disorders and how to treat them
A list of national and international resources and hotlines to help connect you to needed health and medical services.
Herpes sores blister, then burst, scab and heal.
Herpes spreads by oral, vaginal and anal sex.
STIs are the most common cause of genital sores.