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Flashcards in Gastrointestinal infections Deck (69):
1

leading cause of childhood death

diarrheal diseases

2

first thing that comes to mind person - person transmiision ex. Daycare

shigella

3

first thing comes to mind with antibiotics/chemo

C diffucile

4

first think comes to mind with mayo & cream

staph

5

first thing comes to mind with eggs

Salmonella

6

first thing comes to mind with beef

shiga-toxin produced by E coli

7

first thing comes to mind w/ piltry

campylobacter

8

first thing comes to mind with seafood

vibrio

9

first thinf in mind in foodborne outbreak

Salmonella

10

pt developed symp lasting less than 6H, think of

preformed toxins of 1. Staph A 2. B cereus

11

pt developed symp lasting less than 24H, think of

preformed toxins 1. B cereus 2. C perfringens

12

what kind of preformed toxin do u think about if the pt developed symp lasting 72 h

think about the live pathogen not the toxins atm

13

how do u test for toxins

stool micriscipy/culutre

14

what are the pathogens that have an infectious dose of 10^1-2

Shigeela, giardia lamblia, entamoeba histolytics

15

what are pathogens that have an infectious dose of 10^8

E coli, vibrio choleria

16

neurotoxins are produced by the following

Staph A, B cereus, C perfringens

17

Enterotoxins are produced by the following

Aeromonas, enterotix E coli, vibrio cholera

18

cytotoxins are produced by the following

C diffcile, e Coli 0157:H7 (hasat a5o 90210)

19

4 organisms that enteroadherenet

cryptosporidiosis, enteroadherent and enteropathogenic E coli, Helminths, Giardiasis

20

minimal mucosal invasion

norwalk virus, rota virus

21

variable musocal invasion

Salmonella, Campylobacter

22

severe mucosal invasion

entamoeba histolytica, enteroinvasive E coile, shigella

23

which is more severe, salmonella or shigella

shigella

24

watery, pain mid abdominal, state the location of diarrhea

small bowel

25

pain in large bowel diarrhea is

left lower quadrant

26

fecal leukocytes

shigellosis, Enteroinvasive E coil, C difficule, Ulceratic/ischemic colitis

27

persistant diarrhea >2 weekks

think parasitic: Giardi lamblia, Cryptospsoridum parvum, if immune compromized think: microsporidium, mycobacterium avium, CMV

28

fever, headahce, myalgia then abdominal pain + bloody diarrhea, whats the pathogen invovled, and how is it aquired

campylobacter jejuni, poultry, contaminated water/food

29

quantify the amount of Guillain-Barre associated with Campylobater, and when does it occur

1-3 weeks after diarrhea, 20-40% of GBS

30

Describe the paralysis seen in pts with GBS

ascending paralysis; starts at lower extremitis and moves up

31

aquired through eating eggs and exposure to pet reptiles

salmonella

32

untreated salmonella lasts

4-10 days

33

incubation period for typhoid fever

7-14 days

34

severe nonspecific febrile illness, diffuse abdominal pain, tenderness

typhoid fever

35

monocytic infilration inflames peyer patchs and narrows the bowel lumen leading to constipation

typhoid fever

36

rose sports, salmon colored, blancing, truncal maculopapules, when do these symptoms occur in typhoid fever

end of the first week

37

abdomen distended, soft spleomaglay, relative bradycardia, when do these symptoms occur in typhoid fever

second weekw

38

pt is anoresix, significant weight loss w/ pulomary and CNS manifestations, when do these symptoms manifest in typhoid fever

3rd week

39

pt with biliary tract disease and gallstones, what do you suspect

salmonella carrier state

40

when do the symptoms of shigellosis develop

12H after ingestion

41

fever, abdominal pain, tenesmus, bloody diarrhea

shigellosis

42

which type of shigella is associated with HUS

S. dysenteriae

43

why is treatment recommended in shigella

prevent secondary spread tp contacts

44

E coli that presents with watery diarrhea/ itÕs the most common cause of travelers diarrhea

enterotoxigenic

45

diarrhea in infants in developing countries, state the type of E coli

enteropathogenic

46

dysentry with blood + mucus, state the type of E coli

enteroinvasive

47

copious bloody diarrhea, HUS in kids, TTP in adults, state the type of Ecoil

enterohemorrhagic, 0157:H7

48

whats the most common strain of E coli in developed countires

enterohemorrhagic, 0157:H7

49

associated with petting zoo, transmitted by beed

enterohemorrhagic, 0157:H7

50

infectious dose of 0157:H7

100 bacteria bitch

51

name the toxin that 0157:H7 releases

shiga toxin

52

related to antibiotic clindamycin, toxins A and B, nosocomial transmission, state the pathology associated with this disease

pseuodmembranous colotis, yellow-white plaques (C.difficle)

53

complication of C difficle

toxic megacolon

54

new epidemic strain of C difficle attributed for 17% of mortality

B1/NAP1

55

treatment for toxic megacolon

surgical resection of that part of colon

56

cooked pork, unpasteurized milk, where do u espect the pain to be, what kind of skin lesions manifest?

right lower quadrant, erythema nodosum (yersinia enterocolitica)

57

whats the triad for mesentric adenitis, whats its other name

fever, RLQ pain, leukocytosis, terminal ileitis

58

seafood/ raw shellfish, produces enterotoxin and inflammatory rx, halophilic, state the agar needed to grow this type of pathogen, and state its name

vibrio parahemolyticus, TCBS agar

59

extra intestinal, speticemia, raw oyster ingestion, cellulitis after exposure of wounds to salt water

vibrio vulnificus

60

watery diarrhea, dehydration; associated with residence in endemic areas, serotype of V cholera is

1

61

diarrhea, fever, nausea, vomiting, blood in stool; often associated with travelerÕs diarrhea, serotype of V cholera is

non-01

62

summer, cellulitis in wounds exposed to fresh water

aeromonas hydrophilia

63

flask shaped ulcers, liver abscesses, state the order of involvement of this pathogen

pathogen: Entamoeba histolytica, order of invovlement: cecum, ascending colon, rectum, sigmoid

64

campers wo donÕt sterilize emountain stream water, homosexuals brih, suspected in prolonged diarrhea, presents with belching and weight loss

Giardia lamblia

65

symptoms of giardia lamblia resolve in

4-6 weeks

66

sever intractable diarrhea in AIDS pt

cryptosporidium parvum

67

nursing homes, winter, state whther this ia s DNA/RNA virus and how can this be demonstrated

DNA, ELISA (rota virus)

68

norovius, when does it present, and how can it be demonstrated

throughout the year, immune electron microscopy or radioimmunoassay

69

no fever, symptoms last less than 24 hours, potato salad/ice cream

staphlococcal food posioning