occult blood in English

noun

(Medicine) blood in the feces in such small quantities that cannot be seen by the naked eye but can be detected by chemical tests

Use "occult blood" in a sentence

Below are sample sentences containing the word "occult blood" from the English Dictionary. We can refer to these sentence patterns for sentences in case of finding sample sentences with the word "occult blood", or refer to the context using the word "occult blood" in the English Dictionary.

1. How is defecate occult blood caused?

2. The conventional stool plus occult-blood of the patients before and after the treatment are all normal except 1 case of hemorrhoids hematochezia.

3. Benzidine: [ ben´zĭ-dēn ] a compound formed by the action of acids on hydrazobenzene, once widely used in testing for occult blood; its use is now limited because it is toxic and carcinogenic.

4. The principle of chemical tests to detect occult blood is based on the fact that hemoglobin and its derivatives react in a similar way to peroxidase enzymes– by catalyzing the transfer of an oxygen atom from the peroxide to a chromogen such as Benzidine, o-toludine, guaiac or aminophenazone.Oxidation of the chromogen is indicated by the production of a blue, blue-green or …