Use of isotopes in determining occult blood
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چکیده
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Warfarin Use During Fecal Occult Blood Testing: A Meta-Analysis
BACKGROUND Fecal occult blood testing (FOBT) is a widely used screening test for colorectal cancer (CRC). Given the limited data about the effects of warfarin on FOBT are inconclusive, current screening guidelines for CRC do not address whether warfarin should be discontinued before FOBT. Therefore, we conducted a meta-analysis to evaluate the influence of warfarin on the yield of FOBT. METHO...
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چکیده ندارد.
15 صفحه اولThe occult blood test.
The original occult blood tests were designed for forensic purposes, Schonbein and van Deen using a chemical test with guaiacum which was more sensitive than the older Teichmann's haemin crystal test. Subsequently similar chemical methods were widely used and in I893 Weber described his version of the guaiacum test for detecting occult blood in the faeces. Boas first made extensive use of this ...
متن کاملSpectrophotometry of occult blood in feces.
This method for measuring fecal occult blood is based on the heme-catalyzed oxidation of tetramethylbenzidine by H2O2. An aliquot of heated stool homogenate is mixed with acetic acid to chemically separate heme from globin. The heme is extracted into ethyl acetate and reacted with the reagent and H2O2 to produce a green oxidation product. The reaction is followed kinetically for 30 to 60 s at 6...
متن کاملPrevalence of Occult Hepatitis B Infection among HBsAg Negative Blood Donors in Golestan Province
Background and Aims: Occult hepatitis B virus infection (OBI) is known as an important source of hepatitis B virus (HBV) infection. It is categorized as Hepatitis B surface antigen (HBsAg) not being present and low DNA viral load in serum. In this study, an attempt was made to investigate the outbreak of anti-HBc and OBI among the HBsAg-negative donors in Golestan province. Materials and Metho...
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ژورنال
عنوان ژورنال: Cancer
سال: 1971
ISSN: 0008-543X,1097-0142
DOI: 10.1002/1097-0142(197107)28:1<135::aid-cncr2820280126>3.0.co;2-3