TPOAb in Serum

Marker of thyroid autoimmunity. Supports Hashimoto’s/autoimmune thyroiditis and predicts higher risk of future hypothyroidism. Not useful for tracking disease activity (monitor TSH and FT4 instead).
Also known as:
Thyroid Peroxidase (TPO) Antibodies
S-TPOAb
aTPO
Anti-TPO
.

TPOAb ranges

Interpret your result
"Normal" lab range for TPOAb is between 0 and 34 IU/mL:
34
According to Peter Attia, TPOAb should be below 34 IU/mL:
34
Optimal range
Optimal range for TPOAb appears to be below 34 IU/mL:
0
34
200
Why this optimal range?
Using the normal range here, but closer to 0 is better.

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