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Abdomen quiz 1 - Questions

 

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1   Erect abdominal radiographs are routinely used to diagnose pneumoperitoneum
2   Riglers Sign describes the appearance of free gas beneath the diaphragm in a pneumoperitoneum
3  If there is a small amount of free gas present it is more likely to be seen under the right hemidiaphragm than the left on plain films.
4  A CT scan can be a useful test in equivocal cases of pneumoperitoneum.
5  Chilaiditi's syndrome is a cause of pneumoperitoneum.
6  Bowel folds do not usually cross the whole bowel lumen in large bowel obstruction.
7  The large bowel can dilate to a maximum of 4cm to 5cm.
8  It can be difficult to differentiate between pseudoobstruction and large bowel obstruction on plain radiographs.
9  The most common cause of large bowel obstruction is a tumour.
10  If the ileocaecal valve is incompetent, dilatation of the small bowel is unlikely to develop if the large bowel is obstructed.