EDTA‐induced pseudothrombocytosis and citrate‐induced platelet agglutination in a patient with Waldenstrom macroglobulinemia
نویسندگان
چکیده
Hematology analyzers sometimes generate spurious results. A patient had EDTA-induced pseudothrombocytosis and platelet agglutination in citrate blood samples. This case verifies that addition of 1% paraformaldehyde to the citrate tubes can prevent platelet clumping. Further, it illustrates the advantages of having access to more than one platelet count method.
منابع مشابه
آگلوتینین سرد پلاکتی، پدیده ای نادر و در عین حال مهم در آزمایشگاه: گزارش یک مورد ترومبوسیتوپنی کاذب در یک بیمار مبتلا به سرطان کولون
Background: Cold antibody induced platelet clumping is a rare in-vitro phenomenon that causes EDTA independent pseudo thrombocytopenia. This pre-analytical problem leads to a challenge in the clinical laboratory. In such a case platelets tend to easily aggregate in vitro, giving rise to lower platelet counts. The error is detected simply by examining peripheral blood smear. This report describe...
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collected into the sodium citrate-containing tube, which showed normal platelet counts. Only a few cases of PGPS have been reported [1-4]. To our knowledge, this is the first case to be reported in Korea. Stavem and Berg [1] described EDTA-induced ‘platelet stain preventing factor’, and Mant et al. [2], Cockbill et al. [3], and Toyota et al. [4] reported platelet degranulation caused by EDTA. U...
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