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Thyroid Peroxidase Antibodies (TPO)
Hormones
Thyroid Peroxidase Antibodies (TPO)
COMMON RANGE
0 – 9
IU/mL
0
38.5
M
Mayo Clinic Laboratories
Adult
↗
See all sources ↓
Reference ranges across 10+ sources
Adult reference ranges from 4 entries across 4 trusted sources, shown in IU/mL. Compare side-by-side.
SOURCE
SEX
AGE
RANGE
VISUAL
CITE
A
ARUP Laboratories
All
≥18
0 – 34 IU/mL
↗
M
Mayo Clinic Laboratories
All
≥18
0 – 9 IU/mL
↗
Q
Quest Diagnostics
All
≥18
0 – 35 IU/mL
↗
L
Labcorp
All
≥18
0 – 9 IU/mL
↗
A
ARUP Laboratories
All · ≥18
↗
0 – 34 IU/mL
M
Mayo Clinic Laboratories
All · ≥18
↗
0 – 9 IU/mL
Q
Quest Diagnostics
All · ≥18
↗
0 – 35 IU/mL
L
Labcorp
All · ≥18
↗
0 – 9 IU/mL
Related biomarkers
Often tested alongside thyroid peroxidase antibodies (tpo) or part of the same panel.
Thyroid Stimulating Hormone (TSH)
Hormones
Free T4 (Thyroxine)
Hormones
Free T3 (Triiodothyronine)
Hormones
Total T4 (Thyroxine)
Hormones
Total T3 (Triiodothyronine)
Hormones
Reverse T3 (rT3)
Hormones
Sources
A
ARUP Laboratories
M
Mayo Clinic Laboratories
Q
Quest Diagnostics
L
Labcorp
Last updated 2026-05-02
This page aggregates publicly available reference data and clinical information from Mayo Clinic Laboratories and other sources. For general wellness information only — not medical advice. For diagnosis or treatment of any condition, talk to a qualified clinician.
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