Association for the Promotion of Quality Control in Medical Biology
| IQC 2023 - Down's Syndrome Risk Markers (MSMPE) |
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Expert Biologists - Scheme Coordinators:
David CHEILLAN et Magali PETTAZZONI IQC performed since 2010
Number of participating laboratories in 2023: 44 |
1 – Scheme overview
The target values and acceptable limits for each peer group are defined based on the previous year’s EQA schemes and provided at the beginning of the year (target values are set by the results of 80 laboratories).
Samples are provided in kits of 10 vials, which once resuspended, contain 1 mL.
Control samples are CE marked in accordance with European directive 98/79 EC and French law. view certificate
2 – List of analytes assessed
3 – Description of the control samples
Lyophilized human control serum (sample to be resuspended in 1 mL of distilled water).
ATTENTION ! Expiry date of the IQC - Down's Syndrome Risk Markers of 2022 (S07): 2024-06
Expiry date of the IQC - Down's Syndrome Risk Markers of 2023 (S08): 2025-07
4 – Storage of reconstituted samples
from +2°C to +8°C
from -18°C to -25°C: 14 days, frozen in aliquots, for all analytes.
5 - Approximate Target Values
2 levels are available:
| Analyse | Unité | S07 | S08 |
|---|---|---|---|
| AFP | kUI/L | 30 - 40 | 25 - 35 |
| Estriol | nmol/L | 2 - 4 | 2 - 4 |
| hCG free β chain | U/L | 180 - 250 | 40 - 80 |
| Whole hCG | U/L | 30 000 - 40 000 | 10 000 - 20 000 |
| PAPP-A | mUI/L | 3 000 - 5 000 | 2 000 - 4 000 |
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