Fecal occult blood test product with positive and negative controls

摘要

A test sheet (10) for the determination of the presence of a substance having peroxidase-like activity in a throw-in-the bowl fecal occult blood test, includes a specimen test area (12) and a positive control area (16). The test area (12) has deposited thereon a test ink having at least one oxygen donor reagent and a chromogen reagent capable of being oxidized by the oxygen donor in the presence of blood or a substance having peroxidase-like activity, to provide a visually observable change of colour. The test ink preferably also includes a water soluble polymer for immobilizing the chromogen and oxygen donor. The positive control area has deposited thereon the test ink and a substance having a peroxidase-like activity.