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Direct detection of blood doping is relatively time-consuming and cost intensive. Some of the banned substances, such as recombinant human erythropoietin (rhEPO), can hardly be distinguished from natural, endogenous hormones. This SEED describes how it is nevertheless possible to indirectly detect EPO-like doping with a modern haematology analyser like the XN-Series and reticulocyte parameters. The World Anti-Doping Agency (WADA) has played a leading role in the development of the Athlete Biological Passport for monitoring blood parameters such as RET#, RET%, HGB or HCT to ensure fairness among athletes.
The capability to count blood cells beyond the classical 5-part differential with high reliability is a challenge for modern haematology analysers. Sysmex offers the immature granulocyte count (IG) optionally on the XE-series and XT-series analysers. It is a standard diagnostic parameter on the XT-4000i, the XE-5000 and on the new XN-series as well.
Thrombocytopenia occurs in 30% of all neonates admitted to intensive care. Young, immature platelets containing RNA, measured as “immature platelet fraction” (IPF) on Sysmex analyzers, can help to assess platelet production. Thus, they allow conclusions on both the etiology and the likely course of thrombocytopenia in neonates.
XbarM is a real-time analyser monitoring available on Sysmex 5-part differential analysers, XN-L Series and XN-Series, which uses patient samples measured during the daily lab routine. Unlike internal quality control with stabilised material, the XbarM offers a long-term and continuous control process over the entire working day. Using the XbarM, the functionality of all connected reagents, e.g. before and after reagent replacement is monitored in an optimal manner as well as the analyser itself, e.g. before and after calibration or sensitivity adjustment. It does not require any extra input from the user because, once activated and set up correctly, it runs automatically in the background. This SEED article describes the different types of monitored parameters, recommended XbarM settings as well as tips for troubleshooting.
Myelodysplastic syndromes (MDS) often go unnoticed when only a complete blood count is performed on the patient. Sysmex X-Class analysers can measure the granularity of leukocytes which is often reduced in MDS. NEUT-X, the measure of neutrophil granularity, is an excellent tool to filter samples suspected of MDS in anaemic patients.
By combining the WDF and WPC channels both the sensitivity and specificity for detecting reactive and malignant cells is optimised. The measurement technology of XN-Series analysers detects the white blood cell functionality and the novel ‘Extended Inflammation Parameters’ let you quantify activated lymphocytes and neutrophils, and the results can be applied once a malignancy has been excluded.