Cal ni heterodimer, igizwe na MRP 8 na MRP 14. Iboneka muri cytoplasm ya neutrophils kandi igaragara ku ruhu rw'uturemangingo tw'ingirabuzimafatizo. Cal ni poroteyine zo mu cyiciro cya acute, ifite igice gihamye neza mu gihe cy'icyumweru kimwe mu mwanda w'umuntu, yagaragaye ko ari ikimenyetso cy'indwara y'amara itera ububyimbirwe. Iyi kit ni ikizamini cyoroshye, gifite ishusho y'ubuziranenge, gipima cal mu mwanda w'umuntu, gifite ubushobozi bwo kumenya neza indwara kandi gifite umwihariko ukomeye. Ikizamini gishingiye ku ihame rya high specificit double antibodies sandwich reaction principle na gold immunochromatographic assay analysis, gishobora gutanga igisubizo mu minota 15.