After a partial gastrectomy or pyloroplasty, clinical manifestations that include increased pulse, hypotension, weakness, pallor, sweating, and dizziness are the results of which mechanism?
A)Excessive relaxation of gastric and vascular smooth muscles
B)Postoperative hemorrhage
C)Concentrated food bolus, causing hyperglycemia
D)Rapid gastric emptying

Question

Quizplus · Accepted Answer

Dumping syndrome occurs with varying severity in 5% to 10% of individuals who have undergone partial gastrectomy or pyloroplasty. Rapid gastric emptying and the creation of a high osmotic gradient in the small intestine cause a sudden shift of fluid from the vascular compartment to the intestinal lumen. Plasma volume decreases, causing vasomotor responses, such as increased pulse rate, hypotension, weakness, pallor, sweating, and dizziness. Rapid distention of the intestine produces a feeling of epigastric fullness, cramping, nausea, vomiting, and diarrhea. Dumping syndrome is not caused by excessive relaxation of smooth muscles, hemorrhage, or hyperglycemia.

After a Partial Gastrectomy or Pyloroplasty, Clinical Manifestations That Include