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microbiology > gram - rods enteric tract part 2 > Flashcards

gram - rods enteric tract part 2 Flashcards

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Biology 101 flashcards
1
Q

this causes entercolitis in kids a lot and comes before GBS

A

c jejuni

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2
Q

campylobactr properties

A

curved gram -
comma or s shaped
microaerophilic

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3
Q

c jejuni grows at ___ and _____ does not

A

low temps; c intestinalis

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4
Q

microaerophilc?

A

org grows best in 5% O2

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5
Q

campylobactr transmission

A

fecal oral

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6
Q

source of organism for campylobactr

A

cattle, chx, dogs

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7
Q

trmt c jejuni enterocolitis

A

erythromycin or cipro

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8
Q

campylobactr vaccine

A

none

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9
Q

infection with h pylori is a risk for

A

colonic carcinoma

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10
Q

h pylori causes these diseases

A

gastritis and peptic ulcers

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11
Q

linked to mucosal associated lymphoid tissue lymphomas (MALT)`

A

h pylori

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12
Q

helicobactr antigen in stool can be used for what

A

dx or confirm trmt is working

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13
Q

mcc infectious chronic active gastritis and PUD

A

h pylori

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14
Q

most gastric carcinomas are from

A

h pylori

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15
Q

trnasmission h pylori

A

person to person

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16
Q

helicobactr properties

A

curved gram - rod

urease +

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17
Q

h pylori trmt

A

PPI- Lansoprazole or omeprazole

ATB- amoxicillin and metronidazole

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18
Q

what can we use to treat h pylori if ppi fails

A

peptobismol

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19
Q

klebsiella, enterobactr and serratia are ____ teh enteric tract

A

outside

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20
Q

what infections do klebsiella, enterobactr and serratia cause

A

pneumonia and uti

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21
Q

where are klebsiella, enterobactr and serratia on the human body

A

LI

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22
Q

_____ large polysaccharide capsule which gives it a striking mucoid appearance

A

k pneumoniae

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23
Q

____ makes red pigmented colonies

A

s marcescens

24
Q

k pneumoniae has a _____ capsule

A

thick

25
Q

this organism causes pneumonia when respiratory devices are contaiminated as well as endocarditis in IVDU

A

serratia

26
Q

proteus, providencia, and morganella are _____ the enteric tract

A

outside

27
Q

proteus, providencia, and morganella causes these diseases

A

CA and HA UTI

28
Q

proteus, providencia, and morganella properties

A

gram - rod
urease producer
motile
make phenylalanine deaminase (distinguishing factor)

29
Q

____ makes urease which is an important factor in urinary stones

A

p mirabilis

30
Q

some strains of e coli have Sis A and Sis B which do this

A

suppress inflammatory response

31
Q

when p mirabilis makes urease what does it do

A

alkalizes urine and makes stones with struvite

32
Q

struvite is in

A

urinary stones

33
Q

is p mirabilis a common cause of uti

A

no

34
Q

ppl with long term catheters are susceptible to this organism

A

p mirabilis

35
Q

who does p aeruginosa infect

A

lowered host defenses

36
Q

lesion caused by p aeruginosa

A

ecthyma gangrenosum-black and necrotic

37
Q

MCC ventilator associated pneumonia

A

p aeruginosa

38
Q

pseudomonas properties

A

gram - rod
aerobic- nonfermenters
oxidase +
grow in water with few nutrients like tap water

39
Q

green hue and fruity color

A

pseudomonas

40
Q

pyocyanin?

A

pigment in p aeruginosa that colors a wound blue and damages cilia and mucosal cells of resp tract

41
Q

pyoverdin/fluorescin?

A

yellow green pigment that fluoresces under light

42
Q

colonies of p aerginosa have a _____ appearance

A

mucoid

43
Q

where does p aerginosa colonize

A

URT and skin in moist areas like pits

44
Q

where is p aerginosa found in the world

A

soil and water

45
Q

most clearly associated with virulence in p aerginosa

A

Exo S

46
Q

p aerginosa virulence factors

A

endotoxin, exotoxin A, elastases and proteases, exo S

47
Q

mcc serious anaerobic infections

A

bacteroides; usually bacteroides frigilis

48
Q

bacteroides and prevotella properties

A

anaerobic
spore forming
gram - rods

49
Q

bacteroides human pathogen species

A

b fragilis and b corroden

50
Q

b fragilis are located here in the human body

A

colon

51
Q

b melaninogenica and b corrodens are located here in the human body

A

mouth

52
Q

fusobacterium located in human body

A

normal flora of mouth, colon, F genital tract

53
Q

gram - rod with pointed ends

A

fusobacterium characteristscs

54
Q

in mixed infections

A

fusobacterium

55
Q

vincents angina and lemierres are caused by

A

fusobacterium

microbiology (13 decks)

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