Haemoglobin da Transferrin

Jini na boko yana nufin zubar jini kadan a cikin magudanar abinci, jan jini ya narke kuma ya lalace, bayyanar stool ba shi da wani canji mara kyau, kuma ba a iya tabbatar da zubar da jini da ido tsirara da microscope. A wannan lokacin, kawai ta hanyar gwajin jini na gabobin ciki na iya tabbatar da kasancewar ko rashin zubar jini. Transferrin yana cikin plasma kuma kusan ba ya cikin stools na mutane masu lafiya, don haka idan dai an gano shi a cikin stools ko abun ciki na narkewa, yana nuna kasancewar zubar jini na ciki.^[1].