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Flashcards in GI 2 test Deck (10):

Pt with longstanding abdominal pain that develops Brownish-Yellow urine with multiple enteric organisms is most likely cause by?

Enterovesicular fistula--secondar to Crohn dz


This zone of the liver has the p450 system and is most sensitive to injury b/c it is furthest away from blood supply?

Zone 3


What underlying dz is associated with meconium ileum in a neonate?

Cystic fibrosis


Sawtooth glandular epithelium with proliferation of goblet and columnar epithelial cells with no malignant potential?

Hyperplastic polyp


What antibodies/antigens are present/absent during to window period of HepB infection?

Present--HBcAb and HBeAb

Absent--HBsAg and HBsAb


Biliary colic caused after eating a fatty meal can be caused by the release of what from what type of cells?

CCK--causing gallbladder contraction---from the I cells


Pts with chronic hemolytic Disorders--Hereditary spherocytosis, sickle cell dz, or biliary tract infection typically have _______ gallstones?

Calcium bilirubinate (pigmented)


Microscopically has chronic granulomatous inflammation around medium-size intrahepatic bile ducts and is strongly associated with antimitochondrial antibodies?

Primary biliary cirrhosis


Caused by mutation of one of 2 genes hMSH2 and hMSH1 causing defective repair of DNA mismatches?

Hereditary nonpolyposis colorectal cancer--HNPCC


What test is used to differentiate ZES from other causes of hypergastrinemia?

Secretin stimulation test--Secretin injection will cause marked increase in serum gastrin in pts with ZES

Normal pt--would suppress Gastrin secretion