Professional dual-parameter rapid diagnostic test for the simultaneous qualitative detection of Transferrin and Hemoglobin (FOB) in human fecal specimens. This "2-in-1" panel is a highly sensitive tool for screening gastrointestinal bleeding associated with colorectal cancer, polyps, and inflammatory bowel diseases. While Hemoglobin (FOB) is a standard marker for lower GI bleeding, Transferrin is more stable in the gastrointestinal tract and serves as a reliable marker for bleeding from both upper and lower segments. The test delivers reliable results within 5–10 minutes, offering a non-invasive and accurate screening solution for clinical laboratories and gastroenterology departments.