GI/hepatobiliary

Question 1

the most reliable lab to diagnose alcoholism?

Answer 1

carbohydrate deficient transferrin

Question 2

HBV serology which indicates? 
HBV carrier state 
past HBV infection 
immunization 
appears at the onset of critical illness 
infectivity 
acute HBV infection

Answer 2

HBV carrier state : HBsAg (without Anti-HBs)
past HBV infection : Anti-HBs
immunization : Anti-HBs
appears at the onset of critical illness : HBcAg
infectivity :HBeAg
acute HBV infection :IgM anti-HBc

Question 3

1. mother HBsAg + , HBeAg +
2. HBsAg + , HBeAg -
   what is the risk of prenatal viral transmission?

Answer 3

HBsAg + , HBeAg + ==> 85%

HBsAg + , HBeAg - ==> 8-15%

Question 4

suspected inflammatory bowel disease

the 1st step in diagnostic work-up?

Answer 4

fecal Calprotectin

Question 5

H pylori Tx?

Answer 5

Amoxicillin, clarithromycin, PPI (esomeprazole, omeprazole)

Question 6

Barrett’s esophagus (metaplasia)
low grade dysplasia
high grade dysplasia

Management?

Answer 6

Barrett’s esophagus (metaplasia) - endoscopy f/u in 2 yrs
low grade dysplasia -endoscopy f/u in 6 months
high grade dysplasia - distal esophagectomy