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heme-positive Medtalk adjective referring to stool that contains heme, often associated with colorectal CA. See Occult blood. Cf Heme-negative.
Purpose: Current ACG guidelines recommend screening colonoscopies (CS) in average risk people every 10 years beginning at age 50. However, no guidelines or data address the most appropriate evaluation of patients who had normal baseline CS but subsequently presented for the evaluation of hemoccult positive stool (HPS).
guaiac-positive stool. Inclusion of these 6 individuals in the screening cohort would increase the number of cases detected with screening to 12.2%. For 3 individuals, charting described “heme-positive stool,” and it was unclear if the heme-positive stool was first noticed by the patient or as a result of a fecal occult blood test. For-
10 Απρ 2015 · Diarrhea is common in clinical practice, and the ability to evaluate a patient who presents with diarrhea requires an understanding of the definition, pathophysiology, differential diagnoses ...
Heme-positive stool identifies gastrointestinal bleeding. Hemorrhagic shock (eg, hypotension, tachycardia, pallor, tachypnea, diaphoresis, confusion) may result from acute bleeding. Jaundice may suggest hemolysis.
Patients with constipation should undergo colonoscopy if they have rectal bleeding, heme-positive stool, iron de - fi. ciency anemia, weight loss, or obstructive symptoms. In addition, colonoscopy should be considered in selected pa-tients to exclude obstruction from cancer, stricture, and extrinsic compression.
Definition. Tests for fecal occult blood detect blood in the stool that is not visible on gross inspection, usually less than 50 mg of hemoglobin per gram of stool. Normal adults usually show less than 2 to 3 mg/gm. Increased amounts are associated with a variety of benign and malignant gastrointestinal diseases, especially colonic neoplasms ...
