The aim of the study was an independent interlaboratory comparison of the fecal calprotectin detection according to the principles of ISO 15189 using defined fecal eluates. Fourteen Czech laboratories have taken part in the comparison cycle, each laboratory obtained one aliquot of three fecal eluates and determined the level of calprotectin with routinely used diagnostic kits.
In qualitative evaluation of calprotectin levels consensus was reached for all three samples – negative, borderline and positive.