|EQA 2023 - Heparin (HPPO)|
Expert Biologists - Scheme Coordinators:
Chantal BON and Roland MELEY
EQA performed since 1990
Number of participating laboratories in 2022: 339
1 – Scheme overview
This external quality assessment scheme assesses the accuracy of unfractionated heparin and low molecular weight heparin tests.
Statistical reports are sent with supporting comments from the expert clinical biologists who coordinate the scheme.
2 – Assessment frequency
Number of investigations per year: 6
Number of control samples per investigation: 2 or 4
Number of samples per year: 20
4 concentration levels for standard heparin and 4 concentration levels for low molecular weight heparin are tested.
3 – List of analytes assessed
4 – Description of the control samples
Lyophilized human control plasma (citrate) (samples to be resuspended in 1 mL of distilled water).