Acute GIB = Acute GastroIntestinal Bleed
UGIB = Upper GastroIntestinal Bleed
NG Lavage = Nasogastric tube lavage (Injecting fluid and aspirating it back from a nasogastric tube will return blood if the bleeding is from the stomach or profusely from the duodenum/upper gastrointestinal tract)
GI fellow = Gastroenterology fellow
IR = Interventional Radiology
IR or OR = Interventional Radiology (For embolization procedure) or Operating Room for surgical resection
CTA = CT angiogram of the arteries to localize a bleed
Tagged RBC scan = Tagged red blood cell scan which is a more sensitive scan but may not correlate with angiographic findings as well as a CTA does.
EGD = Esophagogastroduodenoscopy AKA endoscopy
Interventional radiology embolization, surgical intervention or gastroenterology protocol for treatment of GI bleeds.