guaiac test

(redirected from Almen test for blood)


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.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

guai·ac test

an obsolete test using glacial acetic acid, gum guaiac solution or hydrogen peroxide to detect traces of fecal or occult blood.
Farlex Partner Medical Dictionary © Farlex 2012

guai·ac test

(gwī'ak test)
A screening procedure for occult blood in stool.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012


August Teodor, Swedish physiologist, 1833-1903.
Almén test for blood - a test for occult blood. Synonym(s): guaiac test; Schönbein test; van Deen test
Medical Eponyms © Farlex 2012