Occult blood test enhancer

Details Occult blood test enhancer Occult blood test enhancer

2005-04-05

2005-04-05

Wallenhorst, Maureen M. (Department: 1743)

Chemistry: analytical and immunological testing

Hemoglobin, myoglobin, or occult blood

C436S017000, C436S164000, C436S169000, C422S067000, C422S051000, C422S051000

Reexamination Certificate

active

06875614

ABSTRACT:
An improved fecal occult blood test having a matrix such as paper that is treated, imprinted or impregnated with a test reagent capable of undergoing a chromogen reaction is disclosed. The improvement relates to a novel developing solution in which the water to alcohol ratio is adjusted to enhance the sensitivity of the test.

REFERENCES:
patent: 3996006 (1976-12-01), Pagano
patent: 5310680 (1994-05-01), Baker et al.
patent: 5391498 (1995-02-01), Baker et al.
patent: 5563071 (1996-10-01), Augurt
Winawer, Sidney J., et al., “Colorectal Cancer Screening: Clinical Guidelines and Rationale”, Gastroenterology, vol. 112, 612-15 (1997).
Hardcastle, Jack D., et al., “Randomised Controlled Trial of Faecal-Occult-Blood Screening for Colorectal Cancer”, Lancet (North American Ed.), vol. 348, 1472-77 (1996).

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