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Bacteriology > Bacterio5 > Flashcards

Bacterio5 Flashcards

1
Q

Neisseria meningitidis aka …….. , where ……. have it part of there NF , (capsulated/not), trasmitted thru…..
It causes …. one step before ….

A 
Meningococci
30%
Capsulated
Respiratory droplets (URT)
Meningitis
Encephalitis
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2
Q

T or F

N.mening are found manly in crouded areas like army camps and nursing homes

A

True

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3
Q

How to detect presence of N menin ?

A

Extraction of csf

Treatment with antibodies (agglutination test)

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4
Q

Target cells of N.meningitidis?

Is it invasive or not?

A

Non-ciliated columnar cells of nasopharynx

N.mening are invasive bacteria

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5
Q

The very severe disease caused by N.mening followed by —– is called…..
Also cause skin infections called ——— and they are ——–

A

Sepsis
Meningococcemia
Petechial rash or macculopapular
Non blanching

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6
Q

Virulence factors for N.mening;
1-
2-
3-

A

1-capsule
2-pilli
3-LOS

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7
Q

Symptoms of meningitis

A 
High temp
Vomiting
Headache
Photophobia
Stiff neck
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8
Q

T or F

N.mening have resistance to antibiotics more than N.gonno

A

False

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9
Q

Moraxella catarrhalis causes in children…… while in adults…… especially in …… patients, it’s treated by ……

A
  • children : otitis media and sinusitis
  • adults: bronchitis and pneumonia
  • complete obstructive pulmonary disease (COPD)
  • cephalosporins
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10
Q

Kingella kingae: causes ……(Like all HACEK bacteria) and in children causes …… , and it’s …….. so we can’t culture

A
  • endocarditis
  • osteomyelitis
  • fastidious
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11
Q

T or F

Enterobacteriacea are gram neg, and most of them are lactose fermenters

A

True

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12
Q

…….and ……. are culture media specific for enterobacteriaceae

A

MacConkey

EMB

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13
Q

Bloody and mucoid diarrhea is called……

A

Dysentery

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14
Q

Tenesmus is a case where…..

A

Need to pass stooll despite rectum being empty (hypersensitivity of the nerve to injury at site of infection)

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15
Q

T or F

The presence of E.coli shows that there is a feces contamination

A

True

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16
Q

What are the steps to detect an enteric bacteria?

A

1- fermentation, gas production and dye colorization
2-EMB and temperature variability (were ecological bacteria can’t grow on hight tempratures)
3-repeat the process to make sure

17
Q 
What do they mean by;
O antigen
K antigen
H antigen
Vi
A

O: for lipopolysaccharides
K: for capsule
H: for flagella
Vi for capsule of salmonella

18
Q

List the 3 domains where E.coli can be present

A

1- commensals: NF non pathogenic
2- intestinal pathogens: probably acquired the virulence factor outside the human
3- extraintestinal: that cause UTIs (most common cause in young women)

19
Q

E.coli takes a ………. appearance on EMB agar

A

Green sheen metallic

20
Q

List the E.coli types of bacteria that causes diarrheal diseases and the type of diarrhea each causes

A 
EPEC (watery)
ETEC (watery)
EHEC (bloody)
EIEC (dysentery)
EAEC (persistent in children)
21
Q

Which type of E.coli releases the shega-like verotoxin

A

EHEC

22
Q

T or F

EPEC and EIEC causes fever because they are invasive

A

False

EPEC don’t

23
Q

Klebsiella pneumoniae, only ….. of uumans have it as NF, (lactose fermenter/not)……., (capsulated or not)……, makes a lot of pus and ….

A

5%
Lactose fementer
Capsulated
Sputum

24
Q

T or F

Klebsiella pneumonia can make a UTI in all cases

A

False

Only in nocosomial settings

25
Q

Pneumonia caused by klebsiella is CAP found in a special case which is in ——–

A

Alcoholics

26
Q

T or F

Pneumona caused by klebsiella can be hemorrhagic

A

True

27
Q

Enterobacter aerogenes are found mostly on ……. even on IV fluids, treated with …..

A

Instruments of the hospitals

4th GC

28
Q

T or F

Serratia marcesens are not opportunistic as klebsiella and can cause pneumonia and endocarditis

A

False

They are opportunistic

29
Q

T or F

Serratia marcescens can’t cause UTIs

A

False

30
Q

Serratia marcescens are common that are …… addicts

A

Narcotic ( opiate)

31
Q

T or F

Proteus mirabilis have a variability in shape

A

True

32
Q

T or F

Proteus mirabilis can cause UTIs

A

True

33
Q

…… occurs with kidney stones,it causes also the release of ammonia and it’s urease(+/-)——-

A

Proteus mirabilis

Urease potsitive

34
Q

Salmonella is part of enterobacteriaceae but it’s ……….(regarding fermentation), (pathogenic/not)………, found mostly in (developed or developing)…….. countries, transmitted through ……

A

Not lactose fermenters
Always pathogenic
Developed (related to hygiene and contamination)
Fecal oral route ( ingestion)

35
Q

Enterobacteriacea have a ——– shape, grows on —— and emb agars that are comparable to ——– agar.
When fermentors are placed on these agars the colors turn ——.
Coliforms are ——– NF
Hemorrhagic E.coli are (invasive/non)——–

A 
Coccobaccilli
Macckokey 
Blood
Rose to pink
Intestinal Nf
Invasive
36
Q

Proteus mirabilis is characterized by it’s ——- activity

A

Swarming

Bacteriology (10 decks)

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