Upper GI bleed Flashcards
Definition: Melena
black “tarry” feces (associated with upper GI bleed)
Definition: haematemesis
Vomiting of blood
Definition: coffee ground vomiting
a particular appearance of vomit.
Within organic heme molecules of red blood cells is the element iron, and when this iron has been exposed for some time to gastric acid, it becomes oxidized.
This reaction causes the vomitus to look like ground coffee.
Coffee-ground vomitus is a classic sign of upper gastrointestinal bleeding.
Pathiophysiology behind oesophageal varices
Insult to liver leading to cirrhosis and portal hypertension
Causes opening of collateral veins
General Management of upper GI bleed
Assess likelihood of varices 2 large bore cannulas G&S or cross matched blood Fluid then blood resuscitation Correction of clotting Move to appropriate ward area (acute) Arrange endoscopy
Management of varices
Terlipressin (vasoconstriction) Antibiotics Lactulosr Secondary prophylaxis: beta blockers, banding Balloon tamponade (short term rescue)
Management of ulcers
Most bleeding stops spontaeously
Endoscopy
Pharm: PPI (post endoscopy)
Radiological
Definiton: Haematochezia
the passage of fresh blood through the anus, usually in or with stools (often associated with lower GI bleed but can be associated with upper GI bleed)