Acute Intestinal Obstrcution

Question 1

Responsible for 90% of cases of early postoperative obstruction

Answer 1

Adhesionn

Question 2

When bowel twists on its mesenteric axis

Answer 2

Volvulus

Question 3

Most commonly affected part in volvulus

Answer 3

Sigmoid colon

Question 4

Pseudo-obstruction of the colon

Answer 4

Ogilvie’s syndrome

Question 5

Most commonly cultured intraluminal organisms in Intestinal Obstruction

Answer 5

E. Coli
Streptococcus faecalis
Klebsiella

Question 6

Most common precursor for strangulation

Answer 6

Closed-loop obstruction

Question 7

Cardinal signs of Intestinal Obstruction

Answer 7

Colicky abdominal pain
Emesis
Abdominal distention
Obstipation

Question 8

Small bowel obstruction in radiography

Answer 8

Staircasing pattern of dilatera air and fluid filled small-bowel loops >2.5 cm in diameter with little or no air seen in the colon

Question 9

Most specific early finding in bowel ischemia associated with intestinal obstruction

Answer 9

Altered bowel enhancement

Question 10

Late findings in CT scan consistent with necrosis

Answer 10

Mesenteric venous gas
Pneumoperitoneum
Pneumatosis intestinalis

Question 11

Management of Intestinal Obstuction

Answer 11

Fluid resuscitation
Electrolyte repletion
Intestinal decompression
Antibiotics

Question 12

Treatment of colonic pseudo-obstuction

Answer 12

Neostigmine

Induces defecation and flatus within 10 mins in the majority of patients