Diarrhea Flashcards
1
Q
Campylobacter
A
comma/S-shaped organisms
Growth at 42 C
Bloody
2
Q
E histolytica
A
Protozoan
Amebic dysentery
Liver abscess
Bloody
3
Q
Enterohemorrhagic E. coli
A
O157:H7, can cause HUS
Makes shiga-like toxin
Bloody
4
Q
Enteroinvasive E. coli
A
Invades colonic mucosa
Bloody
5
Q
Salmonella (non-typhoidal)
A
Lactose negative
Flagella motility
Animal reservoir–poultry and eggs
Bloody
6
Q
Shigella
A
Bloody Lactose negative Very low ID50 Produces Shiga toxin (human reservoir only) Bacillary dysentery
7
Q
C. difficile
A
Pseudomembranous colitis
Antibiotics and PPIs
Occasionally bloody
8
Q
C perfringens
A
Also causes gas gangrene
Watery
9
Q
Enterotoxigenic E. coli
A
Traveler’s diarrhea
Heat labile (LT) and heat-stable (ST) toxin
Watery
10
Q
Protozoa
A
Watery
Giardia
Cryptosporidium
11
Q
V cholerae
A
Watery
Comma-shaped
Rice-water diarrhea
Often from infected seafood
12
Q
Viruses
A
Rotavirus, norovirus, adenovirus
Watery
