Surgery About 6 – 8 hours after peptic perforation the disappearance of abdominal wall rigidity is due to – A Cessation of acid secretion in the stomach B Revival from initial shock C Dilution of acid in the peritonial cavity D Fatigue of reflex arc. 💡 Explanation About 6 - 8 hours after peptic perforation the disappearance of abdominal wall rigidity is due to - ✓ Correct Answer: C. Dilution of acid in the peritonial cavity