CerTest FOB 50 + 200 one step combo card test is a coloured chromatographic immunoassay for the semi-quantitative detection of human haemoglobin (hHb) in stool samples to the following cut-off values: A: 50 ng/mL and B: 200 ng/mL.

CerTest FOB 50 + 200 combo card test offers a simple, a highly sensitive and non-invasive screening assay to detect gastrointestinal bleeding (faecal occult blood).

Colorectal cancer is the second leading cause of illness and death in the Western world.

The screening using faecal occult blood tests is based on the bleeding detection, as important symptom of colonic neoplasm, either at an early-stage cancer or large adenomatous polyps.

Colorectal cancer is also associated with local acute inflammatory reaction being visualized, in some cases, by white cell neutrophil scanning.

Haemoglobin (hHb) is the iron-containing oxygen-transport protein in the red blood cells of all vertebrates that may be leaked into gastrointestinal tract and then discharged with the faeces in gastrointestinal bleeding diseases.