A 24 year old man came to AIIMS emergency dept with history of intermittent crampy abdominal pain since 12hrs, also he has also vomitted 5 times in last 12hrs, no history bleding per rectum. O/E Abdomen was distended and no bowel sounds were heard.Per rectum examination was normal. X-ray was done & given below. Pick true statements from below: Distribution of loops mainly in centre No visible Plica circulares Haustra are not visible String of beads sign present Radius of curvature of loops is around 5-10mm
High-Yield Explanation
Small Bowel Obstruction vs Large Bowel Obstruction: Feature Small Bowel Large Bowel Valvulate conniventes (Plica circulares) Present in Jejunum Absent Haustra Absent Present Number of loops Many Few Distribution of loops Central Peripheral Radius of curvature of loop 30-50 mm 50 mm Solid faeces (only reliable sign) Absent May be present String of beads sign Present Absent