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Flashcards in FA Gram Neg Rods III Deck (19):
1

Major cause of bloody diarrhea, esp in kids; fecal-oral transmission through foods; comma or S-shaped, oxidase positive, grows at 42 degrees

Campylobacter jejuni
(Campy likes the hot campfire!)

2

campylobacter jejuni is a common antecedent to what two conditions

guillain barre, reactive arthritis

3

produces profuse rice water diarrhea via enteroxin that permanently activates Gs --> increased cAMP

Vibrio cholerae

4

vibrio cholerae shape, oxidase, media

comma shaped, oxidase +, grows in alkaline media

5

vibrio cholerae is endemic to

developing countries; prompt oral rehydration is necessary

6

usually transmitted from pet fees (e.g. puppies), contaminated milk, or pork; caused mesenteric adenines that can mimic Crohn disease or appendicitis

Yersinia enterocolitica

7

Causes gastritis and duodenal peptic ulcers; creates alkaline microenvironment in stomach

H pylori

8

H pylori is a risk factor for

peptic ulcer, gastric adenocarcinoma, and lymphoma

9

Curved gram negative rod that is catalase, oxidase and urease +

H pylori

10

H pylori diagnosis

urea breath teat or fecal antigen test

11

H pylori treatment

triple therapy:
1. proton pump inhibitor
2. clarithromycin
3. either amoxicillin or metronidazole

12

What are the three spirochetes of which to be aware?

BLT
borrelia
leptospira
teponema

13

only one spirochete can be visualized using aniline dye (Wright or Giemsa) in light microscopy

Borrelia is big

14

How do you visualize tremponema?

dark-field microscopy

15

Found in water contaminated with animal urine

Leptosprina interrogans

16

Leptospirosis symptoms

flu-like symptoms, jaundice, photphobia with conjucntival suffusion (erythema without exudate)

17

classic patient for leptospirosis

surfers and in tropics (hawaii)

18

What is Weil disease?

Icterohemorrhagic leptospirosis = severe form with jaundice and azotemia from liver and kidney dysfunction; fever, hemorrhage, and anemia

19

spiral shaped bacteria with axial filaments are called

spirochetes