GIT Flashcards
Cholelithiasis in children is usually due to
Hemolytic dyscrasia
Gold standard for diagnosis of biliary atresia
Direct cholangiography
Most common form of biliary atresia
Obliteration of the entire extra hepatic biliary tree at or above the porta hepatis
Seen in biliary atresia upon ultrasound where there is a cone shaped fibrotic mass cranial to the bifurcation of the portal vein
Triangular cord sign
Biliary atresia vs neonatal hepatitis
Persistent acholic stool
Biliary atresia
Most common cause of viral gastroenteritis in infants
Rotavirus
Duration of acute diarrhea must not be more than how many days?
14
Child presents with watery diarrhea and vomiting:
Day care center
Infants and toddlers
Rotavirus
ETEC
Child presents with watery diarrhea and vomiting:
Profuse diarrhea and vomiting
Flecks of mucous on voluminous diarrhea
Cholera
Child presents with watery diarrhea and vomiting:
Profuse diarrhea after eating raw oysters or undercooked shellfish
Vibrio parahemolyticus
Child presents with watery diarrhea and vomiting:
Person to person
Winter
Norwalk
Child presents with watery diarrhea and vomiting:
Greasy stool after camping
Giardia
Child presents with watery diarrhea and vomiting:
After history if travel
ETEC
In cholera, binding of the enterotoxin B to the ganglioside receptor activates what 2nd messenger?
Adenylate cyclase
Increased levels of cAMP in cholera blocks reabsorption of?
NaCl reabsorption
Drug treatment for cholera
Tetracycline or Doxycycline
Invasion of intestinal epithelium is the basis for the bleeding diarrhea in what infection?
Shigella
Enteric fever is caused by this organism
Salmonella typhi
Empiric treatment for typhoid fever
Ceftriaxone
Bloody diarrhea, pus and WBC in stools:
Trophozoite with ingested RBC
Amoebiasis
Bloody diarrhea, pus and WBC in stools:
Abdominal cramps, systemic toxicity after antibiotic used
Clostridium difficile
Usual antibiotics implicated in clostridium difficile infection
Clinda
Ampi
2nd gen Ceph