guaiac test


guaiac

 [gwi´ak] a resin from certain Caribbean trees, used as a reagent.guaiac test one for occult blood; glacial acetic acid and guaiac are mixed with the specimen; on addition of hydrogen peroxide, the presence of blood is indicated by a blue tint.

guai·ac test

an obsolete test using glacial acetic acid, gum guaiac solution or hydrogen peroxide to detect traces of fecal or occult blood. Synonym(s): Almén test for blood

guai·ac test

(gwī'ak test) A screening procedure for occult blood in stool.

Almén,

August Teodor, Swedish physiologist, 1833-1903. Almén test for blood - a test for occult blood. Synonym(s): guaiac test; Schönbein test; van Deen test