Paralytic ileus is characterized by all except
|A||No bowel sounds on auscultation|
|B||No passage of flatus|
|C||Gas filled loops of intestine with multiple fluid levels|
|D||Loops of intestine are not seen due to loss of- peristalsis|
a. In adynamic ileus, abdominal radiographs reveal diffusely dilated bowel throughout the intestinal tract with air in the colon and rectum.
b. Air-fluid levels may be present, and the amount of dilated bowel varies greatly.
c. A CT scan is more accurate in differentiating functional from mechanical obstruction by identifying the so-called transition point or cutoff at the obstruction site in cases of mechanical obstruction.
d. It also determines the level (high or low) and degree of obstruction (partial versus high grade or complete), differentiates between uncomplicated and complicated (compromised bowel, perforation) obstruction, and identifies specific types of obstruction (closed-loop obstruction, intussusception).
e. In addition, CT may identify other associated disease states (bowel ischemia, phlegmon, abscess, pancreatitis.