S13C154 - Foodborne and waterborne dz Flashcards
1
Q
When to do stool O+P and cultures?
A
- febrile
- bloody diarrhea
- severe abdo pain
- severe or protracted illness
2
Q
Fecal leuks:
A
-indicate invasive pathogen
3
Q
GI symptoms with vomitting as primary Sx:
A
- viral: norwalk, rotavirus, astrovirus
- staph aureus
- b cereus
4
Q
watery non-bloody diarrhea:
A
- ETEC
- giardia
- vibrio cholerae
- enteric viruses
- cryptosporidium
- cyclospora
5
Q
Bloody diarrhea
A
- SECSY
- shigella
- enteroinvasive/enterohemorrhagic e coli
- campylobacter
- salmonella
- yersinia
- shiga-toxin producing e coli 0157:H7
- entamoebe
6
Q
Persistent diarrhea
A
- giardia
- cyclospora
- entamoeba
- cryptosporidium
7
Q
Neurologic complications with diarrhea
A
- botulism (clostridium botulinum)
- scombroid fish
- ciguatera fish
- teterodotoxin (puffer fish)
- mushrrom
- paralytic shellfish
- GBS (associated with c jejuni
- (shigella, salmonella): sero- reacitve arthritis
8
Q
Systemically unwell with diarrhea
A
- listeria
- brucella
- salmonella typhi
- s. paratyphi
- v vulnificus (life/limb threatening necrotic wound infxn, hemorrhagic bullae)
- het A/E
9
Q
When can one use antimotility agents in diarrhea?
A
- if no fever
- if no bloody diarrhea
- not routinely used in small children
10
Q
Diarrhea tx:
A
-most can be treated with ciprofloxacin 500mg PO BID x3d
- brucella: rifampin an doxy
- listeria monocytogenesis: setpra 20mg/kg iv or ampicillin
- vibrio cholerae: azithro 1g PO x1 or doxy
- parasitic: flagyl (except cryptosporidium which is azithro
- DO NOT TREAT E coli 0157:H7 with Abx b/c of risk of HUS
