How is lower gastrointestinal (GI) bleeding (LGIB) classified?

Updated: Jul 26, 2019
  • Author: Burt Cagir, MD, FACS; Chief Editor: BS Anand, MD  more...
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Answer

LGIB is generally classified under three groups according to the amount of bleeding, as shown in the image below. Massive hemorrhage is a life-threatening condition [4] and requires transfusion of at least 4 units (U) of blood within 1 hour.

Types of lower gastrointestinal (GI) bleeding. HR Types of lower gastrointestinal (GI) bleeding. HR = heart rate, SBP = systolic blood pressure.

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