intraabdominal infections Flashcards Preview

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Flashcards in intraabdominal infections Deck (14):
1

typhlitis

neutropenic enterocolitis

2

primary peritonitis vs secondary

Primary: aka spontaneous bacterial peritonitis. Occurs in setting of ascites. Cirrhosis results in complement deficiency
Secondary: spillage of gi or gu endogenous microbes into peritoneal cavity.

3

diagnosis of primary peritonitis

paracentesis showing >250 PMNs/mm3 in ascitic fluid. Monomicrobial infection (secondary averages 4.5 microbes).

4

what antibiotics would you use in primary peritonitis? secondary?

target aerobic gram negative bacilli.
target Anaerobic bacteria (broad-spectrum)

5

diagnosis of secondary peritonitis

elevated WBC. free air on CXR. ileus abdominal x ray

6

CAPD peritonitis

contamination of dialysis catheter by staph epidermidis and staph aureus. Pain and cloudy dialysate (give antibiotics via dialysate)

7

most common pathogen in intraperitoneal abcess

bacteroides fragilis, although they are usually polymicrobial

8

tenderness in secondary peritonitis vs intraperitoneal abcess

diffuse vs localized

9

visceral abscesses: when do they occur? etiology?

complicate underlying organ injury (pancreatitis, splenic infarct, etc). Monomicrobial via hematogenous, polymicrobial via communication with bowel lumen

10

diagnosis of acute apendicitis

CT

11

McBurney's pt

1/3 distance from ASIS to umbilicus.

12

true vs false diverticulum

true: all 3 gut wall layers (eg. Meckel's).
False: only mucosa and submucosa

13

diverticulosis: causes

low fiber diet, age

14

diverticulitis: presentation

LLQ pain "left-sided appendicits", fever, leukocytosis, hematochezia.