occult blood

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Related to occult blood: occult bleeding

oc·cult blood

n. sangre oculta, presencia de sangre en cantidad tan ínfima que no puede verse a simple vista.
English-Spanish Medical Dictionary © Farlex 2012
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A positive guaiac fecal occult blood test (gFOBT) was associated with allcause mortality excluding colorectal cancer in the study, which included data on individuals screened in Scotland during 2000-2016.
Most common clinical signs in stage 1 NEC were lethargy, vomiting, gastric aspirates, stool for occult blood positive, with mild ileus on radiological studies.
Although the FIT has a number of advantages over the guaiac-based fecal occult blood test [22-27], one notable feature is the ability to provide quantitative estimates of fecal hemoglobin.
A number of investigative studies have been done to compare the benefits of colonoscopy, sigmoidoscopy and/or fecal occult blood testing.
Several studies in Europe and Israel have shown higher sensitivities for FIT as compared with fecal occult blood tests.
No studies directly compare the need for colonoscopy when various numbers of stool samples are positive for occult blood on an FOBT.
The urinalysis data indicated that 128 (12.4%) of the aircrew members without CKD exhibited urine occult blood abnormalities.
The test detects fecal occult blood derived from both the upper and lower gastrointestinal tract, with improved sensitivity for even small benign lesions (polyps) and cancer precursors (adenomas).
On July 21, vomiting of 300 ml and positive fecal occult blood test were shown.
But the easier and less expensive fecal occult blood test (FOBT), which is done at home by swiping a tiny amount of stool onto a card for three days, was just as efficient.
Status iFOBT is a rapid immunoassay for the qualitative detection of immunochemical fecal occult blood. Its objective is to detect human hemoglobin in human fecal specimens as an aid in the diagnosis of gastrointestinal disorders.