Chapter 76: Lower Gastrointestinal Bleeding

Question 1

Most common cause of LGIB

Answer 1

Diverticular disease

Question 2

Is usually painless and results from erosion into the penetrating artery of the diverticulum

Answer 2

Diverticulosis

Question 3

True or False
Most diverticula are
located on the left colon, right-sided diverticula are thought to be more likely to bleed

Answer 3

True most diverticula are

located on the left colon, right-sided diverticula are thought to be more likely to bleed

Question 4

The most common cause of intestinal ischemia and is usually transient

Answer 4

Ischemic colitis

Question 5

The most common source of anorectal bleed- ing

Answer 5

Hemorrhoids

Question 6

True or False
In patients with lower GI bleeding, a lack of abdominal tenderness suggests bleed- ing from disorders involving the vasculature, such as diverticulosis or angiodysplasia. Inflammatory bowel disorders with lower GI bleeding are associated with abdominal tenderness on examination

Answer 6

True
In patients with lower GI bleeding, a lack of abdominal tenderness suggests bleed- ing from disorders involving the vasculature, such as diverticulosis or angiodysplasia. Inflammatory bowel disorders with lower GI bleeding are associated with abdominal tenderness on examination

Question 7

Serious complications can also occur with angiography in up to ____

Answer 7

Serious complications can also occur with angiography in up to 10% of cases

Question 8

Best imaging for diagnosis of LGIB and locate where it is

Answer 8

Scintigraphy over angiography

Question 9

True or False
General guidelines for initiation of blood transfusion are continued active bleeding and failure to improve perfusion and vital signs after crystalloid infusion or if hemoglobin falls below 7 g/dL

Answer 9

True
General guidelines for initiation of blood transfusion are continued active bleeding and failure to improve perfusion and vital signs after crystalloid infusion or if hemoglobin falls below 7 g/dL