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What is How to differentiate mechanical obstruction from paralytic ileus? and explain in detail?
Ans. (b) Absence of rectal shadowRef: Bailey and Love 26th edition, Page 1190* The important point to differentiate paralytic ileus and mechanical obstruction in X-ray is there will be absence of rectal gas shadow in mechanical obstruction.* Clinically bowel sounds will be absent in paralytic ileus with no pain.