| Scheme Particulars | Indicative Details |
|---|---|
| Accreditation body | UKAS |
| ISO/IEC Accreditation status | ISO/IEC 17043:2010 |
| UKAS Accredited Proficiency Testing Provider No | 8560 |
| Objective of Scheme | Provides EQA for laboratory based BNP assays to cover clinically important ranges |
| Pre-, Analytical, Post- status | Analytical |
| Number of distributions per year (nominal) | 12 |
| Specimens per distribution | 3 |
| Number of Specimens per annum | 36 |
| Frequency of distribution | Monthly |
| Scoring system | ABC |
| Material distributed | Lyophilised human plasma |
| Programme Director(s) / Organiser(s) | Dr Naomi Elkin |
| Criteria for participation | All |
| Nominal sample volume | 500 µL |
| Sample presentation TACs | All analytes in the same tube |
| Analyte | Approx Range | Default Units | Target Value | B Score Limit (%) | C Score Limit (%) |
|---|---|---|---|---|---|
| BNP | ~ | ~ | MLTM | 15 | 20 |
| Abbreviation | Expansion |
|---|---|
| ALTM | All Laboratory Trimmed Mean |
| GLTM | Group Laboratory Trimmed Mean – which is the Method Principle Mean |
| MLTM | Method Laboratory Trimmed Mean – usually a manufacturer system / analyser mean |
| XALTM | An external value that may be from a Reference Method System |
| OGLTM | A Method Principle Mean used as the target for all laboratories |
| OMLTM | A specific Method Mean used as a target for all laboratories |
| MED | Median |