Web Reference: Blood sample quality is a critical concern, with factors such as hemolysis, lipemia, and icterus leading to erroneous results. Sources of preanalytical errors encompass inappropriate test requests, patient preparation lapses, and errors during sample collection, handling, and transportation. May 18, 2014 · Proper management of pre-analytical errors requires significant interdepartmental cooperation, since many sources of these errors fall outside the direct control of laboratory personnel. The preanalytical errors refer to all of the inappropriate performances before the specimens are measured by analyzers, such as improper sample collection, transport delays, illegible handwriting on requisition, and so on.
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