Acute abdominal series: Difference between revisions
m (moved Abdominal X-ray to Acute Abdominal Series) |
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*Abdominal xray has poor Sn and Sp for SBO | *Abdominal xray has poor Sn and Sp for SBO | ||
**If very concerned need CT | **If very concerned need CT | ||
#Films | |||
##Upright chest film: r/o free air | |||
##Upright abd film: air-fluid levels | |||
##Supine abd film: width of bowel loops most visible (estimate of amount of distention) | |||
#Air in colon or rectum makes complete obstruction less likely (esp if symptoms >24hr) | |||
#If pt does not tolerate upright position left lateral decub abd film can substitute | |||
==See Also== | ==See Also== | ||
Revision as of 18:11, 22 October 2011
To differentiate large and small bowel:
- Small bowel has lines (plica circulares) all the way through the bowel
- Large bowel has lines (haustra) only halfway through the bowel
- Abdominal xray has poor Sn and Sp for SBO
- If very concerned need CT
- Films
- Upright chest film: r/o free air
- Upright abd film: air-fluid levels
- Supine abd film: width of bowel loops most visible (estimate of amount of distention)
- Air in colon or rectum makes complete obstruction less likely (esp if symptoms >24hr)
- If pt does not tolerate upright position left lateral decub abd film can substitute