guaiac test
noun
: a test for blood in urine or feces using a reagent containing guaiacum that yields a blue color when blood is present see hemoccult
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“Guaiac test.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/guaiac%20test. Accessed 22 Dec. 2024.
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