Population
35 laboratories participating in the Haematology component of the Royal College of Pathologists of…
Design
Cross-sectional
Authors
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Anti-Xa assay variability for LMWH may compromise monitoring reliability; leaves open whether standardization improves clinical outcomes.
The high variability of anti-Xa assay results and widely variable therapeutic ranges across laboratories suggests that therapeutic heparin monitoring is poorly standardized, raising concerns about its clinical value.
Favaloro et al. (2005) studied this question.
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