How determined through stool bleeding ulcer

Through feces to determine color bleeding gastric ulcer is still an important means of the present, especially for the diagnosis has been clear for gastric ulcer patients. If the stool from normal to black, should be vigilant against the possibility of hemorrhage, this should go see the doctor, to do the necessary checks to clear whether gastric ulcer bleeding.
And the appearance of it, suggesting that about 50-80 ml bleeding. If a tar-like glossy and viscous with faeces, suggested that the amount of bleeding increased. 100-200 ml of blood test will be the introduction of the stomach, there is a tar-like, but usually if 400-500 ml can occur constant asphalt like it. Intragastric injection of 1000 ml of blood, such as through a rapid, four hours will be from the red blood; such as blood in the intestines stay 20 hours, a tar-like it. These observations consistent with the clinical manifestations.
It should be noted that a small amount of bleeding, visually aware of that, we must use occult blood test. Fecal occult blood positive, suggesting bleeding more than about 5 ml. Occult blood test was positive people, but also to consider the following possibilities:
(1) the impact of diet and drugs.
(2) a small amount of bleeding lesions.
(3) apparent recovery after the hemorrhage.
(4) omen of impending severe bleeding.
Gastric ulcer is often a small amount of active bleeding, the blood disappeared or improved ulcer healing, if sustained occult blood on more than one should be suspected malignant tumor.
Gastrointestinal hemorrhage: fecal occult blood response duration determined by the nature and focus of hemorrhage. To the stomach after the introduction of 15-50 ml of blood, stool occult blood sustainable 2-7 days. Into 1000 ml of blood, the tar-like 1-3 days will be sustainable, sustainable positive fecal occult blood 11-14 days. If the bleeding lesions is a one-time, the situation similar. Clinical identified gastrointestinal bleeding, blood negative reaction to the time and average about two weeks.
Clinicians personally observed stool shape, color is very important, if a block will be required to pick open to observe its internal shape and color. Because Fenkuai colon are formed in the next paragraph, the higher the position, the more Buchengxing, stool and blood mixed situation is also very important. If the row after it like asphalt, gradually forming stool, and the degree of reduction, which is better, soon to be yellow stool.