Practical reasons for poor RDT performance

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Possible causes for poor test performance 1. Quality of test design/production There is significant variation of performance between tests, users are advised to check test performance (see WHO testing information available from xxxxx. Heat stability of the RDT card: storage Age of card or reagent:storage Lot to lot variability in assay quality Operator-Specific Factors Operator-Inappropriate placement of reagent or blood drop Operator-Interpreting faint line