Effect of pre-analytical conditions on prothrombin time and partial activated thromboplastin time

Moutinho, Beatriz; Pinto, Beatriz; Cardoso, Rita; Alves, Helena; Botelho, Mónica

http://hdl.handle.net/10400.18/6487

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Abstract(s)

Clinical analysis often involves clotting assays. Although the guidelines suggest the storing and freezing of samples before these assays, there are contradictory results in the literature. The objective of this study was to analyse the effect of the temperature and the storage of plasma sample on Prothrombin Time (PT) and Activated Partial Thromboplastin Time (aPTT) in clinical samples for 65 patients without coagulation disorders.