Fecal Transferrin Rapid Test Device is a rapid qualitative immunochromatographic test for the detection of the transferrin in feces. The test is intended for use by health care professionals as an aid in the diagnosis of premature syndrome linked to the intestinal bleeding. The test uses double antibody sandwich assay to selectively detect as low as 10 ng/mL of transferrin or 1 μg transferrin/g feces. In addition, unlike the guaiac assays, the accuracy of the test is not affected by the diet of the patients.

Transferrin (TF) is a blood-derived component that may be leaked into gastrointestinal tract and then discharged with the feces in gastrointestinal bleeding diseases. Transferrin is stable in feces and resists being dissociated by gastrointestinal enzymes and a good marker to detect loss of blood from the upper and lower intestine (gastrointestinal bleeding).