In the small bowel, 30 to 40% of bleeding is caused by abnormal blood vessels in the wall of the small bowel. These abnormal blood vessels have many names, including angioectasias, angiodysplasias, or arteriovenous malformations (AVMs).he small bowel (or small intestine) is the longest portion of the gastrointestinal (GI) tract. It is called small because it is thin or narrow compared with the large bowel (also known as the colon), but it is much longer than the large bowel (14 feet on average).
Don't forget the multiple causes of an elevated d-dimer: 1  PE/DVT. 2  Sepsis/infection. 3  Malignancy. 4  Renal disease. 5  Pregnancy. 6  MI. 7  Stroke.
d dimer normal values are biomarkers that the body s coagulation process is not hampered with and the probability of thrombosis is lowered on the other hand a positive or elevated d dimer result is an indication of thromboembolic disease and other blood disorders doctors often conduct follow up diagnostic tests to patients whose d dimer values are elevated to rule out or confirm the presence of major health issues