Definition

Noun: A series of diagnostic tests for the gastrointestinal (GI) tract. This procedure typically involves having the patient swallow or receive an enema containing a contrast medium, such as barium sulfate, to make the digestive organs visible on X-ray images.

Usage

The term "GI series" is used in medical contexts to refer to a specific radiographic examination. * The doctor ordered a GI series to investigate the cause of the patient's chronic stomach pain. * Before the GI series, you must fast for several hours.

Advanced Usage

• Upper GI series: Specifically examines the esophagus, stomach, and the beginning of the small intestine (duodenum).
  • An upper GI series can help diagnose ulcers or swallowing difficulties.
• Lower GI series (or barium enema): Specifically examines the large intestine (colon) and rectum.
  • A lower GI series is often used for colorectal cancer screening.

Variants and Related Words

• Barium swallow: A common term for an upper GI series focusing on the esophagus.
• Contrast radiography: The broader category of medical imaging that includes a GI series.

Synonyms

• Barium study
• Gastrointestinal radiography

Notes

"GI series" is a medical compound noun. It is an abbreviation of "gastrointestinal series." The procedure is also commonly referred to by the name of the contrast agent used, such as a "barium study."

Noun

1. diagnostic tests of the alimentary canal; usually involves inserting a contrast medium (such as barium sulfate) and taking an X-ray