Factor XIII (FXIII) deficiency is a rare hemorrhagic disorder whose early diagnosis is crucial for appropriate treatment and prophylactic supplementation in cases of severe deficiency. In 2017 Mar 31, Caron C and others publish an article in << International Journal of Laboratory Hematology >> which title is “Agreement between factor XIII activity and antigen assays in measurement of factor XIII: A French multicenter study of 147 human plasma samples.”, reported a rare disease: Factor XIII (FXIII) deficiency. The measurement of FXIII antigen using the K-Assay® is a reliable first-line tool for detection of FXIII deficiency when an activity assay is not available.
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