Scheme Particulars Indicative Details
Accreditation body UKAS
UKAS Accredited Proficiency Testing Provider No 7860
Number of distributions per year (nominal) 12
Specimens per distribution 5
Frequency of distribution Monthly
Material distributed Human serum
Sample volume (mL) 2
Programme Director(s) / Organiser(s) Finlay MacKenzie
Analyte Approximate Range Default Scheme Units
TSH 0 – 36 mU/L
Free T4 2 – 60 pmol/L
Free T3 1 – 18 pmol/L
Total T4 10 – 280 nmol/L
Total T3 0.4 – 6 nmol/L
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