Results 151 to 160 of about 4,801 (206)

Proctosigmoidoscopy and Guaiac Screening

JAMA: The Journal of the American Medical Association, 1975
To the Editor.— I quite agree with Dr. Powers (231:750,1975) that (1) proctosigmoidoscopy is fast, simple, and short, and that (2) routine employment as part of a physical examination with appropriate polypectomy cuts the incidence of rectal carcinoma by 60% to 75%.
David H. Greegor
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Immunochemical testing of individuals positive for guaiac faecal occult blood test in a screening programme for colorectal cancer: an observational study

Lancet Oncology, The, 2006
Background: Screening for colorectal cancer by use of guaiac-based faecal occult blood tests (FOBT) reduces disease-specific mortality. However, due to imperfect specificity, about half of individuals positive for guaiac FOBT are negative for neoplasia ...
Callum Fraser, Robert Jc Steele
exaly   +2 more sources

Gam Guaiac

Notes and Queries
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Effect of iron on the guaiac reaction

Gastroenterology, 1989
Most studies show that oral ingestion of iron does not cause a positive stool guaiac reaction. However, all in vitro studies show that iron does cause a positive guaiac reaction and some in vivo studies have shown a positive stool guaiac reaction in response to oral iron. This study examines this unresolved question.
W M, McDonnell, J A, Ryan, D M, Seeger, G H, Elta   +3 more
openaire   +2 more sources

Screening for colorectal cancer: random comparison of guaiac and immunochemical faecal occult blood testing at different cut-off levels

British Journal of Cancer, 2009
Immunochemical faecal occult blood testing (FIT) provides quantitative test results, which allows optimisation of the cut-off value for follow-up colonoscopy.
Ernst J Kuipers, Monique van Leerdam, L Hol   +2 more
exaly   +3 more sources

Random Comparison of Guaiac and Immunochemical Fecal Occult Blood Tests for Colorectal Cancer in a Screening Population [PDF]

Gastroenterology, 2008
Contains fulltext : 71251.pdf (Publisher’s version ) (Closed access)BACKGROUND & AIMS: Despite poor performance, guaiac-based fecal occult blood tests (G-FOBT) are most frequently implemented for colorectal cancer screening ...
Martijn van Oijen, Paul Fockens, Evelien Dekker   +2 more
exaly   +2 more sources

VITAMIN C AND GUAIAC OCCULT BLOOD TESTS

Lancet, The, 1981
exaly   +3 more sources

Evaluation of the Guaiac-Positive Patient

2009
One of the more common encounters a physician must deal with is the presence of occult gastrointestinal blood loss. The prevalence may reach up to 1 in 20 adults. The detection of occult blood is important because a person may lose up to 150 ml of blood from the proximal gastrointestinal tract before producing overt melena [Schiff et al.
Rebecca Burbridge, Melissa Teitelman
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The Routine Guaiac Stool Test

New England Journal of Medicine, 1952
AN EVALUATION of the importance of routine stool testing in the internist's office for occult blood was made by reviewing 1600 consecutive office records of new patients.
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Errors in the Guaiac Test For Occult Blood

JAMA: The Journal of the American Medical Association, 1967
To the Editor:— During a lecture and clinical demonstration, I performed a guaiac test for occult blood on a stool specimen that appeared tarry, and obtained a negative reaction. In order to illustrate how a positive reaction should appear, I repeated the test with a specimen containing fresh blood.
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