When is a single contrast upper GI series performed

When is a single contrast upper GI series performed?

Double-contrast examinations focus on showing mucosal detail. Single-contrast examinations focus only on the big picture to detect obstruction, perforation, abnormal motility, or fistulas.

A single-contrast examination is performed to detect a complication along a staple/suture line, at an anastomosis, or near a wound; to evaluate an organ as it passes through a surgically created tunnel; or to identify a rent in a mesentery.

A single-contrast examination may also be performed to evaluate emptying of surgically created pouches after surgery for morbid obesity and in conjunction with a small bowel follow-through examination.

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