<prompt> Which of the following is not a feature of paralytic ileus?Hypoactive bowel soundsPresence of gas in rectumColicky painDilated bowel loops with multiple air fluid levels on X-ray  <response>: Paralytic ileus Failure of transmission of peristaltic waves due to neuromuscular failure. Etiology: Abd Sx Intra-abdominal infection Dyselectrolytemia Drugs Clinical presentation Abdominal distention Vomiting Dilated bowel loops No mechanical obstruction Paralytic ileus Mechanical obstruction Pain is not a feature of paralytic ileus and if present a steady, diffuse discomfo Bowel sounds are hypoactive or absent Presence of gas in colon rectum in paralytic ileus on abdominal X-ray Pain is colicky in mechanical obstruction Hyperactive bowel sounds in mechanical obstruction Absence of gas in colon rectum in mechanical complete small bowel obstruction 