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HARMONIZED THYROID - ABTH
ABTH
Analytes/procedures in bold type are regulated for proficiency testing by the Centers for Medicare & Medicaid Services (CMS).
Analyte
Challenges per Shipment
Number of Shipments
Triiodothyronine (T3), free
3
Two shipments per year
Triiodothyronine (T3), total
3
Thyroxine (T4), free
3
Thyroxine (T4), total
3
Thyroid‑stimulating hormone (TSH)
3
Additional Information
Analytes will be evaluated using harmonization.
Specimens are collected by a modified application of Clinical and Laboratory Standards Institute Guideline CLSI C37‑A, Preparation and Validation of Commutable Frozen Human Serum Pools as Secondary Reference Materials for Cholesterol Measurement Procedures; Approved Guideline.
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