Day 7 - GI1

Question 1

GI Infx: Food poisoning as result of food sitting out too long

Answer 1

S. aureus (preformed enterotoxins)

Question 2

GI Infx: Rice water stool

Answer 2

Vibrio cholera (ETEC also)

Question 3

GI Infx: Diarrhea due to pet feces

Answer 3

Yersinia entercolytica

Question 4

GI Infx: Food poisoning resulting from reheated rice

Answer 4

Bacillus cereus

Question 5

GI Infx: Most common cause of traveler’s diarrhea

Answer 5

Enterotoxigenic E. coli (ETEC)

Question 6

GI Infx: Diarrhea after course of antibx

Answer 6

Clostridium difficile

Question 7

GI Infx: Diarrhea plus recent ingestion of water from a stream

Answer 7

Giardia lamblia (could also be Entamoeba histolytica)

Question 8

GI Infx: Mild intestinal infx can become neurocysticercosis

Answer 8

Taenia solium

Question 9

GI Infx: Food poisoning from undercooked hamburger meat

Answer 9

Enterohemorrhagic E. coli (EHEC) (Recall O157:H7 can cause HUS)

Question 10

GI Infx: Diarrhea from seafood

Answer 10

Vibrio species (cholerae, parahemolyticus, vulnificus)

Question 11

GI Infx: Bloody diarrhea from poultry

Answer 11

Salmonella or Campylobacter

Question 12

GI Infx: Diarrhea and pink eye

Answer 12

Adenovirus

Question 13

GI Infx: Bloody diarrhea w/ liver abscess

Answer 13

Entamoeba histolytica

Question 14

GI Infx: Diarrhea in AIDS pt

Answer 14

Cryptosporidium (and Isospora)

Question 15

GI Infx: Dehydrated child w/ greenish diarrhea in winter months

Answer 15

Rotavirus

Question 16

Tx Hep B v. C

Answer 16

Hep B: INF-alpha (standard or pegylated) w/ antivrals (lamivudine, adefovir, entecavir, telbivudine) v. Hep C (pegylated only) in addition to Ribavirin

Question 17

Anatomy of GI tract highlighted by following study: Barium swallow

Answer 17

Esophagus, LES, stomach

Question 18

Anatomy of GI tract highlighted by following study: Gastric emptying study

Answer 18

Stomach, pyloric sphincter, duodenum

Question 19

Anatomy of GI tract highlighted by following study: Small bowel follow-through

Answer 19

Contrast agent (e.g., barium) w/ images every 30 min for 2 hrs; Stomach to terminal ileum

Question 20

Anatomy of GI tract highlighted by following study: Barium enema

Answer 20

Colon & appendix

Question 21

Mallory-Weiss v. Booerhave’s syndrome

Answer 21

MW: mucosal laceration of esophagus; Booerhave: esophageal perforation (life-threatening); Both p/w blood with retching

Question 22

Surgical connection of stomach to skin of anterior wall for feeding

Answer 22

Gastrostomy

Question 23

Surgical connection of illeum to skin of anterior wall for feeding

Answer 23

Illeostomy

Question 24

Surgical connection of colon to skin of anterior wall for feeding

Answer 24

Colostomy

Question 25

Visualization of peritoneal cavity using laproscope

Answer 25

Laparascopy

Question 26

Surgical incision into abdominal cavity

Answer 26

Laparotomy (or may be called Celiotomy)