Most important cause of abdominal distension in intestinal obstruction –: (A) Cases produced by bacterial activity, (B) Cases diffused from blood, (C) Swallowed air, (D) Products of digestion
Answer is C. In intestinal obstruction distension of the intestine is caused by accumulation of gas and fluid proximal to and within the obstructed segmented.
70-80% of this intestinal gas consists of swallowed air.