The chemical findings in the blood of 6 dogs with closed-loop obstruction of the upper jejunum are reported.
The duration of life with closed loops is less than with simple obstruction.
All animals showed a marked rise in non-protein nitrogen and urea nitrogen, and fall in chlorides. Usually the C02 combining power of the plasma is increased.
The findings in closed-loop obstruction are essentially the same as in simple intestinal obstruction.