Different laboratories use varying reference ranges for thyroid antibodies
the verdict
SUPPORTED
the evidence backs this
confidence 84/100
Different laboratories and analytical assay platforms utilize varying reference limits and cutoffs for thyroid autoantibodies like TgAb and anti-TPO, meaning results cannot always be used interchangeably.
Evidence for · 2
Definition of the upper reference limit for thyroglobulin antibodies according to the National Academy of Clinical Biochemistry guidelines: comparison of eleven different automated methods
2017 · cited by 29
Paper 1 demonstrates significant inter-method variability and wide variation in upper reference limits and cutoffs for thyroglobulin antibodies across multiple automated assay platforms and laboratories.
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More for · 1
Anti-thyroid peroxidase (TPO) antibodies – Comparative analysis of two automatic methods, ECLIA and CMIA
2024 · cited by 5
Paper 7 confirms that different analytical methods for anti-thyroid peroxidase (TPO) antibodies possess differing reference ranges and lack quantitative agreement, making them unsuitable for interchangeable monitoring.