The symptoms depend on the level of the obstruction (Table 30.6). The more proximal the obstruction the more severe the pain.
Table 30.6 Small bowel obstruction: difference between a high and a low obstruction
Frequency of spasms Intensity of pain
Early, frequent Violent
Gastric juices then green Feculent (later)
Dehydration and degree of illness Marked
Less prominent Marked
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