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Blood in the Stool (Rectal Bleeding) (cont.)

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Esophagogastroduodenoscopy

If there is major concern about bleeding coming from the stomach or duodenum, an esophagogastricduodenoscopy (EGD) can be done using an endoscope similar to the endoscope used for colonoscopy.

Blood tests

Blood tests such as a complete blood count (CBC) and iron levels in the blood play no role in locating the site of gastrointestinal bleeding; however, the CBC and blood iron levels may help to determine whether bleeding is acute or chronic, since an anemia (low red blood cell count) associated with iron deficiency suggests chronic bleeding over many weeks or months. Gastrointestinal conditions commonly causing iron deficiency anemia include colon polyps, colon cancers, colon angiodysplasias, and chronic colitis.

When a patient looses a large amount of blood suddenly, as with moderate or severe acute rectal bleeding, the lost blood is replaced by fluid from the body's tissues. This influx of fluid dilutes the blood and leads to anemia (a reduced concentration of red blood cells). It takes time, however, for the tissue fluid to replace the lost blood within the blood vessels. Therefore, soon after a sudden large episode of bleeding, there may be no anemia. It takes many hours and even a day or more for the anemia to develop as tissue fluid slowly dilutes the blood. For this reason, a red blood cell count early after bleeding is not reliable for estimating the severity of the bleeding.

Medically Reviewed by a Doctor on 7/16/2014

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Blood in the Stool - Experience Question: Please describe your experience with blood in the stool.
Blood in the Stool - Cause Question: What was the cause of blood in your stool?
Blood in the Stool - Diagnosis Question: What was the diagnosis of blood in the stool?
Blood in the Stool - Treatment Question: Depending on the cause, what was the treatment for blood in the stool?
Blood in the Stool - Hemorrhoids Question: Please describe your experience with hemorrhoids and blood in your stool.
Blood in the Stool - Anal Fissures Question: Please describe your experience with anal fissures and rectal bleeding.
Blood in the Stool - Other Causes Question: Which one of these were the cause of your case of rectal bleeding, and please describe your experience.
Blood in the Stool - Infection Question: What infection caused your case of rectal bleeding, and how was it treated?
Blood in the Stool - Ulcers or Gastritis Question: Was it ulcers or gastritis that caused your case of rectal bleeding, and how was it treated?
Blood in the Stool - Esophageal Bleeding Question: Please describe your experience with rectal bleeding and esophageal bleeding.
Blood in the Stool - Additional Causes Question: If not mentioned previously, what caused your case of rectal bleeding?
Blood in the Stool - Associated Symptoms Question: What symptoms did you have that occurred with rectal bleeding?
Source: MedicineNet.com
http://www.medicinenet.com/blood_in_the_stool_rectal_bleeding/article.htm

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