guaiac test
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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
guaiac test
a test, using guaiac as a reagent, formerly performed on feces and urine for detecting occult blood in the intestinal and urinary tracts.
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
guaiac test
a tree resin from Guajaaem officinale; used in a test for occult blood in the feces.